kotlin/ChangeLog.md

CHANGELOG

1.1.4-3

• KT-18062 SamWithReceiver compiler plugin not used by IntelliJ for .kt files
• KT-18497 Gradle Kotlin Plugin does not work with the gradle java-library plugin
• KT-19276 Console spam when opening idea-community project in debug IDEA
• KT-19433 [Coroutines + Kapt3] Assertion failed in ClassClsStubBuilder.createNestedClassStub
• KT-19680 kapt3 & Parcelize: Compilation error
• KT-19687 Kotlin 1.1.4 noarg plugin breaks with sealed classes
• KT-19700 Kapt error after updating to 1.1.4 - stub adds type parameters where there are none
• KT-19713 Mocking of final named suspend methods with mockito fails
• KT-19729 kapt3: not always including argument to @javax.inject.Named in generated stubs
• KT-19759 "Convert to expression body" is not shown in 162 / AS23 branches for multi-liners
• KT-19767 NPE caused by Map<String, Boolean>?.get
• KT-19769 PerModulePackageCacheService calls getOrderEntriesForFile() for every file, even those that can't affect Kotlin resolve
• KT-19774 Provide an opt-out flag for separate classes directories (Gradle 4.0+)
• KT-19847 if an imported library already exists it should be redetected during gradle import

1.1.4-2

• KT-19679 CompilationException: Couldn't inline method call 'methodName' into...
• KT-19690 Lazy field in interface default method leads to ClassFormatError
• KT-19716 Quickdoc Ctrl+Q broken while browsing code completion list Ctrl-Space
• KT-19717 Library kind incorrectly detected for vertx-web in Kotlin project
• KT-19723 "Insufficient maximum stack size" during compilation

1.1.4

Android

New Features

• KT-11048 Android Extensions: cannot evaluate expression containing generated properties

Performance Improvements

• KT-10542 Android Extensions: No cache for Views
• KT-18250 Android Extensions: Allow to use SparseArray as a View cache

Fixes

• KT-11051 Android Extensions: completion of generated properties is unclear for ambiguous ids
• KT-14086 Android-extensions not generated using flavors dimension
• KT-14912 Lint: "Code contains STOPSHIP marker" ignores suppress annotation
• KT-15164 Kotlin Lint: problems in delegate expression are not reported
• KT-16934 Android Extensions fails to compile when importing synthetic properties for layouts in other modules
• KT-17641 Problem with Kotlin Android Extensions and Gradle syntax
• KT-17783 Kotlin Lint: quick fixes to add inapplicable @RequiresApi and @SuppressLint make code incompilable
• KT-17786 Kotlin Lint: "Surround with if()" quick fix is not suggested for single expression get()
• KT-17787 Kotlin Lint: "Add @TargetApi" quick fix is not suggested for top level property accessor
• KT-17788 Kotlin Lint: "Surround with if()" quick fix corrupts code in case of destructuring declaration
• KT-17890 [kotlin-android-extensions] Renaming layout file does not rename import
• KT-18012 Kotlin Android Extensions generates @NotNull properties for views present in a configuration and potentially missing in another
• KT-18545 Accessing to synthetic properties on smart casted Android components crashed compiler

Compiler

New Features

• KT-10942 Support meta-annotations from JSR 305 for nullability qualifiers
• KT-14187 Redundant "is" check is not detected
• KT-16603 Support inline suspend function
• KT-17585 Generate state machine for named functions in their bodies

Performance Improvements

• KT-3098 Generate efficient comparisons
• KT-6247 Optimization for 'in' and '..'
• KT-7571 Don't box Double instance to call hashCode on Java 8
• KT-9900 Optimize range operations for 'until' extension from stdlib
• KT-11959 Unnceessary boxing/unboxing due to Comparable.compareTo
• KT-12158 Optimize away boxing when comparing nullable primitive type value to primitive value
• KT-13682 Reuse StringBuilder for concatenation and string interpolation
• KT-14323 IntelliJ lockup when using Apache Spark UDF
• KT-14375 Kotlin compiler failure with spark when creating a flexible type for scala.Function22
• KT-15235 Escaped characters in template strings are generating inefficient implementations
• KT-17280 Inline constant expressions in string templates
• KT-17903 Generate 'for-in-indices' as a precondition loop
• KT-18157 Optimize out trivial INSTANCEOF checks
• KT-18162 Do not check nullability assertions twice for effectively same value
• KT-18164 Do not check nullability for values that have been already checked with !!
• KT-18478 Unnecessary nullification of bound variables
• KT-18558 Flatten nested string concatenation
• KT-18777 Unnecessary boolean negation generated for 'if (expr !in range)'

Fixes

• KT-1809 Confusing diagnostics when wrong number of type arguments are specified and there are several callee candiates
• KT-2007 Improve diagnostics when + in not resolved on a pair of nullable ints
• KT-5066 Bad diagnostic message for ABSTRACT_MEMBER_NOT_IMPLEMENTED for (companion) object
• KT-5511 Inconsistent handling of inner enum
• KT-7773 Disallow to explicitly extend Enum class
• KT-7975 Unclear error message when redundant type arguments supplied
• KT-8340 vararg in a property setter must be an error
• KT-8612 Incorrect error message for var extension property without getter or setter
• KT-8829 Type parameter of a class is not resolved in the constructor parameter's default value
• KT-8845 Bogus diagnostic on infix operation "in"
• KT-9282 Improve diagnostic on overload resolution ambiguity when a nullable argument is passed to non-null parameter
• KT-10045 Not specific enough compiler error message in case of trying to call overloaded private methods
• KT-10164 Incorrect error message for external inline method
• KT-10248 Smart casts: Misleading error on overloaded function call
• KT-10657 Confusing diagnostic when trying to invoke value as a function
• KT-10839 Weird diagnostics on callable reference of unresolved class
• KT-11119 Confusing error message when overloaded method is called on nullable receiver
• KT-12408 Generic information lost for override values
• KT-12551 Report "unused expression" on unused bound double colon expressions
• KT-13749 Error highlighting range for no 'override' modifier is bigger than needed
• KT-14598 Do not report "member is final and cannot be overridden" when overriding something from final class
• KT-14633 "If must have both main and else branches" diagnostic range is too high
• KT-14647 Confusing error message "'@receiver:' annotations could be applied only to extension function or extension property declarations"
• KT-14927 TCE in QualifiedExpressionResolver
• KT-15243 Report deprecation on usages of type alias expanded to a deprecated class
• KT-15804 Prohibit having duplicate parameter names in functional types
• KT-15810 destructuring declarations don't work in scripts on the top level
• KT-15931 IllegalStateException: ClassDescriptor of superType should not be null: T by a
• KT-16016 Compiler failure with NO_EXPECTED_TYPE
• KT-16448 Inline suspend functions with inlined suspend invocations are miscompiled (VerifyError, ClassNotFound)
• KT-16576 Wrong code generated with skynet benchmark
• KT-17007 Kotlin is not optimizing away unreachable code based on const vals
• KT-17188 Do not propose to specify constructor invocation for classes without an accessible constructor
• KT-17611 Unnecessary "Name shadowed" warning on parameter of local function or local class member
• KT-17692 NPE in compiler when calling KClass.java on function result of type Unit
• KT-17820 False "useless cast" when target type is flexible
• KT-17972 Anonymous class generated from lambda captures its outer and tries to set nonexistent this$0 field.
• KT-18029 typealias not working in .kts files
• KT-18085 Compilation Error:Kotlin: [Internal Error] kotlin.TypeCastException: null cannot be cast to non-null type com.intellij.psi.PsiElement
• KT-18115 Generic inherited classes in different packages with coroutine causes java.lang.VerifyError: Bad local variable type
• KT-18189 Incorrect generic signature generated for implementation methods overriding special built-ins
• KT-18234 Top-level variables in script aren't local variables
• KT-18413 Strange compiler error - probably incremental compiler
• KT-18486 Superfluos generation of suspend function state-machine because of inner suspension of different coroutine
• KT-18598 Report error on access to declarations from non-exported packages and from inaccessible modules on Java 9
• KT-18698 java.lang.IllegalStateException: resolveToInstruction: incorrect index -1 for label L12 in subroutine
• KT-18702 Proguard warning with Kotlin 1.2-M1
• KT-18728 Integer method reference application fails with CompilationException: Back-end (JVM) Internal error
• KT-18845 Exception on building gradle project with collection literals
• KT-18867 Getting constant "VerifyError: Operand stack underflow" from Kotlin plugin
• KT-18916 Strange bytecode generated for 'null' passed as SAM adapter for Java interface
• KT-18983 Coroutines: miscompiled suspend for loop (local variables are not spilled around suspension points)
• KT-19175 Compiler generates different bytecode when classes are compiled separately or together
• KT-19246 Using generic inline function inside inline extension function throws java.lang.VerifyError: Bad return type
• KT-19419 Support JSR 305 meta-annotations in libraries even when JSR 305 JAR is not on the classpath

IDE

New Features

• KT-2638 Inline property (with accessors) refactoring
• KT-7107 Rename refactoring for labels
• KT-9818 Code style for method expression bodies
• KT-11994 Data flow analysis support for Kotlin in IntelliJ
• KT-14126 Code style wrapping options for enum constants
• KT-14929 Deprecated ReplaceWith for type aliases
• KT-14950 Code Style: Wrapping and Braces / "Local variable annotations" setting could be supported
• KT-14965 "Configure Kotlin in project" should support build.gradle.kts
• KT-15504 Add code style options to limit number of blank lines
• KT-16558 Code Style: Add Options for "Spaces Before Parentheses"
• KT-18113 Add new line options to code style for method parameters
• KT-18605 Option to not use continuation indent in chained calls
• KT-18607 Options to put blank lines between 'when' branches

Performance Improvements

• KT-14606 Code completion calculates decompiled text when building lookup elements for PSI from compiled classes
• KT-17751 Kotlin slows down java inspections big time
• KT-17835 10s hang on IDEA project open
• KT-18842 Very slow typing in certain files of Kotlin project
• KT-18921 Configure library kind explicitly

Fixes

• KT-6610 Language injection doesn't work with String Interpolation
• KT-8893 Quick documentation shows type for top-level object-type elements, but "no name provided" for local ones
• KT-9359 "Accidental override" error message does not mention class (type) names
• KT-10736 Highlighting usages doesn't work for synthetic properties created by the Android Extensions
• KT-11980 Spring: Generate Constructor, Setter Dependency in XML for Kotlin class: IOE at LightElement.add()
• KT-12123 Formatter: always indent after newline in variable initialization
• KT-12910 spring: create init-method/destroy-method from usage results in IOE
• KT-13072 Kotlin struggles to index JDK 9 classes
• KT-13099 formatting in angle brackets ignored and not fixed
• KT-14083 Formatting of where clasuses
• KT-14271 Value captured in closure doesn't always get highlighted
• KT-14561 Use regular indent for the primary constructor parameters
• KT-14974 "Find Usages" hangs in ExpressionsOfTypeProcessor
• KT-15093 Navigation to library may not work if there's another module in same project that references same jar via a different library
• KT-15270 Quickfix to migrate from @native***
• KT-16352 Create from usage inserts extra space in first step
• KT-16725 Formatter does not fix spaces before square brackets
• KT-16999 "Parameter info" shows duplicates on toString
• KT-17357 BuiltIns for module build with project LV settings, not with facet module settings
• KT-17394 Core formatting is wrong for expression body properties
• KT-17759 Breakpoints not working in JS
• KT-17771 Kotlin IntelliJ plugin should resolve Gradle script classpath asynchronously
• KT-17818 Formatting of long constructors is inconsistent with Kotlin code conventions
• KT-17849 Automatically insert trimMargin() or trimIndent() on enter in multi-line strings
• KT-17855 Main function is shown as unused
• KT-17894 String trimIndent support inserts wrong indent in some cases
• KT-17942 Enter in multiline string with injection doesn't add a proper indent
• KT-17956 Type hints for properties that only consist of constructor calls don't add much value
• KT-18006 Copying part of string literal with escape sequences converts this sequences to special characters
• KT-18030 Parameters hints: kotlin.arrayOf(elements) should be on the blacklist by default
• KT-18059 Kotlin Lint: False positive error "requires api level 24" for interface method with body
• KT-18149 PIEAE "Element class CompositeElement of type REFERENCE_EXPRESSION (class KtNameReferenceExpressionElementType)" at PsiInvalidElementAccessException.createByNode()
• KT-18151 Do not import jdkHome from Gradle/Maven model
• KT-18158 Expand selection should select the comment after expression getter on the same line
• KT-18186 Create function from usage should infer expected return type
• KT-18221 AE at org.jetbrains.kotlin.analyzer.ResolverForProjectImpl.descriptorForModule
• KT-18269 Find Usages fails to find operator-style usages of invoke() defined as extension
• KT-18298 spring: strange menu at "Navige to the spring bean" gutter
• KT-18309 Join lines breaks code
• KT-18373 Facet: can't change target platform between JVM versions
• KT-18376 Maven import fails with NPE at ArgumentUtils.convertArgumentsToStringList() if jvmTarget setting is absent
• KT-18418 Generate equals and hashCode should be available for classes without properties
• KT-18429 Android strings resources folding false positives
• KT-18444 Type hints don't work for destructuring declarations
• KT-18475 Gradle/IntelliJ sync can result in IntelliJ modules getting gradle artifacts added to the classpath, breaking compilation
• KT-18479 Can't find usages of invoke operator with vararg parameter
• KT-18501 Quick Documentation doesn't show when @Supress("unused") is above the javadoc
• KT-18566 Long find usages for operators when there are several operators for the same type
• KT-18596 "Generate hashCode" produces poorly formatted code
• KT-18725 Android: kotlin-language facet disappears on reopening the project
• KT-18974 Type hints shouldn't appear for negative literals
• KT-19054 Lags in typing in string literal
• KT-19062 Member navigation doesn't work in expression bodies of getters with inferred property type
• KT-19210 Command line flags like -Xload-jsr305-annotations have no effect in IDE
• KT-19303 Project language version settings are used to analyze libraries, disabling module-specific analysis flags like -Xjsr305-annotations

IDE. Completion

• KT-8208 Support static member completion with not-imported-yet classes
• KT-12104 Smart completion does not work with "invoke" when receiver is expression
• KT-17074 Incorrect autocomplete suggestions for contexts affected by @DslMarker
• KT-18443 IntelliJ not handling default constructor argument from companion object well
• KT-19191 Disable completion binding context caching by default

IDE. Debugger

• KT-14845 Evaluate expression freezes debugger while evaluating filter, for time proportional to number of elements in collection.
• KT-17120 Evaluate expression: cannot find local variable
• KT-18453 Support 'Step over' and 'Force step over' action for suspended calls
• KT-18577 Debug: Smart Step Into does not enter functions passed as variable or parameter: "Method invoke() has not been called"
• KT-18632 Debug: Smart Step Into does not enter functions passed as variable or parameter when signature of lambda and parameter doesn't match
• KT-18949 Can't stop on breakpoint after call to inline in Android Studio
• KT-19403 30s complete hangs of application on breakpoints stop attempt

IDE. Inspections and Intentions

New Features

• KT-12119 Intention to replace .addAll() on a mutable collection with +=
• KT-13436 Replace 'when' with return: handle case when all branches jump out (return Nothing)
• KT-13458 Cascade "replace with return" for if/when expressions
• KT-13676 Add better quickfix for 'let' and 'error 'only not null or asserted calls are allowed'
• KT-14648 Add quickfix for @receiver annotation being applied to extension member instead of extension type
• KT-14799 Add inspection to simplify successive null checks into safe-call and null check
• KT-14900 "Lift return out of when/if" should work with control flow expressions
• KT-15257 JS: quickfix to migrate from @native to external
• KT-15368 Add intention to convert Boolean? == true to ?: false and vice versa
• KT-15893 "Array property in data class" inspection could have a quick fix to generate equals() and hashcode()
• KT-15958 Inspection to inline "unnecessary" variables
• KT-16063 Inspection to suggest converting block body to expression body
• KT-17198 Inspection to replace filter calls followed by functions with a predicate variant
• KT-17580 Add remaning branches intention should be available for sealed classes
• KT-17583 Support "Declaration access can be weaker" inspection for kotlin properties
• KT-17815 Quick-fix "Replace with safe call & elvis"
• KT-17842 Add quick-fix for NO_CONSTRUCTOR error
• KT-17895 Inspection to replace 'a .. b-1' with 'a until b'
• KT-17919 Add "Simplify if" intention/inspection
• KT-17920 Add intention/inspection removing redundant spread operator for arrayOf call
• KT-17970 Intention actions to format parameter/argument list placing each on separate line
• KT-18236 Add inspection for potentially wrongly placed unary operators
• KT-18274 Add inspection to replace map+joinTo with joinTo(transform)
• KT-18386 Inspection to detect safe calls of orEmpty()
• KT-18438 Add inspection for empty ranges with start > endInclusive
• KT-18460 Add intentions to apply De Morgan's laws to conditions
• KT-18516 Add inspection to detect & remove redundant Unit
• KT-18517 Provide "Remove explicit type" inspection for some obvious cases
• KT-18534 Quick-fix to add empty brackets after primary constructor
• KT-18540 Add quickfix to create data class property from usage in destructuring declaration
• KT-18615 Inspection to replace if with three or more options with when
• KT-18749 Inspection for useless operations on collection with not-null elements
• KT-18830 "Lift return out of try"

Fixes

• KT-11906 Spring: "Create getter / setter" quick fixes cause IOE at LightElement.add()
• KT-12524 Wrong "redundant semicolon" for semicolon inside an enum class before the companion object declaration
• KT-13870 Wrong caption "Change to property access" for Quick Fix to convert class instantiation to object reference
• KT-13886 Unused variable intention should remove constant initializer
• KT-14092 "Make " intention inserts modifier between annotation and class keywords
• KT-14093 "Make " intention available only on modifier when declaration already have a visibility modifier
• KT-14643 "Add non-null asserted call" quickfix should not be offered on literal null constants
• KT-15242 Create type from usage should include constraints into base types
• KT-16046 Globally unused typealias is not marked as such
• KT-16069 "Simplify if statement" doesn't work in specific case
• KT-17026 "Replace explicit parameter" should not be shown on destructuring declaration
• KT-17092 Create function from usage works incorrectly with ::class expression
• KT-17353 "Create type parameter from usage" should not be offered for unresolved annotations
• KT-17537 Create from Usage should suggest Boolean return type if function is used in if condition
• KT-17623 "Remove explicit type arguments" is too conservative sometimes
• KT-17651 Create property from usage should make lateinit var
• KT-17726 Nullability quick-fixes operate incorrectly with implicit nullable receiver
• KT-17740 CME at MakeOverriddenMemberOpenFix.getText()
• KT-18506 Inspection on final Kotlin spring components is false positive
• KT-17823 Intention "Make private" and friends should respect modifier order
• KT-17917 Superfluos suggestion to add replaceWith for DeprecationLevel.HIDDEN
• KT-17954 Setting error severity on "Kotlin | Function or property has platform type" does not show up as error in IDE
• KT-17996 Android Studio Default Constructor Command Removes Custom Setter
• KT-18033 Do not suggest to cast expression to non-nullable type when it's the same as !!
• KT-18035 Quickfix for "CanBePrimaryConstructorProperty" does not work correctly with vararg constructor properties
• KT-18044 "Move to class body" intention: better placement in the body
• KT-18074 Suggestion in Intention 'Specify return type explicitly' doesn't support generic type parameter
• KT-18120 Recursive property accessor gives false positives
• KT-18148 Incorrect, not working quickfix - final and can't be overridden
• KT-18160 Circular autofix actions between redundant modality and non-final variable with allopen plugin
• KT-18194 "Protected in final" inspection works incorrectly with all-open
• KT-18195 "Redundant modality" is not reported with all-open
• KT-18197 Redundant "make open" for abstract class member with all-open
• KT-18253 Wrong location of "Redundant 'toString()' call in string template" quickfix
• KT-18347 Nullability quickfixes are not helpful when using invoke operator
• KT-18368 "Cast expression x to Type" fails for expression inside argument list
• KT-18375 Backticked function name is suggested to be renamed to the same name
• KT-18385 Spring: Generate Dependency causes Throwable "AWT events are not allowed inside write action"
• KT-18407 "Move property to constructor" action should not appear on properties declared in interfaces
• KT-18425 Make intention inserts modifier at wrong position for sealed class
• KT-18529 Add '!!' quick fix applies to wrong expression on operation 'in'
• KT-18642 Remove unused parameter intention transfers default value to another parameter
• KT-18683 Wrong 'equals' is generated for Kotlin JS project
• KT-18709 "Lift assignment out of if" changes semantics
• KT-18711 "Lift return out of when" changes semantics for functional type
• KT-18717 Report MemberVisibilityCanBePrivate on visibility modifier if present
• KT-18722 Correct "before" sample in description for intention Convert to enum class
• KT-18723 Correct "after" sample for intention Convert to apply
• KT-18852 "Lift return out of when" does not work for exhaustive when without else
• KT-18928 In IDE, "Replace 'if' expression with safe access expression incorrectly replace expression when using property
• KT-18954 Kotlin plugin updater activates in headless mode
• KT-18970 Do not report "property can be private" on JvmField properties
• KT-19232 Replace Math.min with coerceAtMost intention is broken
• KT-19272 Do not report "function can be private" on JUnit 3 test methods

IDE. Refactorings

New Features

• KT-4379 Support renaming import alias
• KT-8180 Copy Class
• KT-17547 Refactor / Move: Problems Detected / Conflicts in View: only referencing file is mentioned

Fixes

• KT-9054 Copy / pasting a Kotlin file should bring up the Copy Class dialog
• KT-13437 Change signature replaces return type with Unit when it's not requested
• KT-15859 Renaming variables or functions with backticks removes the backticks
• KT-16180 Opened decompiled editor blocks refactoring of involved element
• KT-17062 Field/property inline refactoring works incorrectly with Kotlin & Java usages
• KT-17128 Refactor / Rename in the last position of label name throws Throwable "PsiElement(IDENTIFIER) by com.intellij.refactoring.rename.inplace.MemberInplaceRenamer" at InplaceRefactoring.buildTemplateAndStart()
• KT-17489 Refactor / Inline Property: cannot inline val with the following plusAssign
• KT-17571 Refactor / Move warns about using private/internal class from Java, but this is not related to the move
• KT-17622 Refactor / Inline Function loses type arguments
• KT-18034 Copy Class refactoring replaces all usages of the class with the new one!
• KT-18076 Refactor / Rename on alias of Java class suggests to select between refactoring handlers
• KT-18096 Refactor / Rename on import alias usage of a class member element tries to rename the element itself
• KT-18098 Refactor / Copy can't generate proper import if original code uses import alias of java member
• KT-18135 Refactor: no Problems Detected for Copy/Move source using platform type to another platform's module
• KT-18200 Refactor / Copy is enabled for Java source selected with Kotlin file, but not for Java source selected with Kotlin class
• KT-18241 Refactor / Copy (and Move) fails for chain of lambdas and invoke()'s with IllegalStateException: "No selector for PARENTHESIZED" at KtSimpleNameReference.changeQualifiedName()
• KT-18325 Renaming a parameter name in one implementation silently rename it in all implementations
• KT-18390 Refactor / Copy called for Java class opens only Copy File dialog
• KT-18699 Refactor / Copy, Move loses necessary parentheses
• KT-18738 Misleading quick fix message for an 'open' modifier on an interface member
• KT-19130 Refactor / Inline val: "Show inline dialog for local variables" setting is ignored

JavaScript

Performance Improvements

• KT-18331 JS: compilation performance degrades fast when inlined nested labels are used

Fixes

• KT-4078 JS sourcemaps should contain relative path. The relative base & prefix should be set from project/module preferences
• KT-8020 JS: String? plus operator crashes on runtime
• KT-13919 JS: Source map weirdness
• KT-15456 JS: inlining doesn't work for array constructor with size and lambda
• KT-16984 KotlinJS - 1 > 2 > false causes unhandled javascript exception
• KT-17285 JS: wrong result when call function with default parameter overridden by delegation by function from another interface
• KT-17445 JS: minifier for Kotlin JS apps
• KT-17476 JS: Some symbols in identifiers compile, but are not legal
• KT-17871 JS: spread vararg call doesn't work on functions imported with @JsModule
• KT-18027 JS: Illegal symbols are possible in backticked labels, but cause crash in runtime and malformed js code
• KT-18032 JS: Illegal symbols are possible in backticked package names, but cause crash in runtime and malformed js code
• KT-18169 JS: reified generic backticked type name containing non-identifier symbols causes malformed JS and runtime crash
• KT-18187 JS backend does not copy non-abstract method of interface to implementing class in some cases
• KT-18201 JS backend generates wrong code for inline function which calls non-inline function from another module
• KT-18652 JS: Objects from same package but from different libraries are incorrectly accessed

Libraries

• KT-18526 Small typo in documentation for kotlin-stdlib / kotlin.collections / retainAll
• KT-18624 JS: Bad return type for Promise.all
• KT-18670 Incorrect documentation of MutableMap.values
• KT-18671 Provide implementation for CoroutineContext.Element functions.

Reflection

• KT-15222 Support reflection for local delegated properties
• KT-14094 IllegalAccessException when try to get members annotated by private annotation with parameter
• KT-16399 Embedded Tomcat fails to load Class-Path: kotlin-runtime.jar from kotlin-reflect-1.0.6.jar
• KT-16810 Do not include incorrect ExternalOverridabilityCondition service file into kotlin-reflect.jar
• KT-18404 “KotlinReflectionInternalError: This callable does not support a default call” when function or constructor has more than 32 parameters
• KT-18476 KClass<*>.superclasses does not contain Any::class
• KT-18480 Kotlin Reflection unable to call getter of protected read-only val with custom getter from parent class

Tools

• KT-18245 NoArg: IllegalAccessError on instantiating sealed class child via Java reflection
• KT-18874 Crash during compilation after switching to 1.1.3-release-IJ2017.2-2
• KT-19047 Private methods are final event if used with the all-open-plugin.

Tools. CLI

• KT-17297 Report error when CLI compiler is not being run under Java 8+
• KT-18599 Support -Xmodule-path and -Xadd-modules arguments for modular compilation on Java 9
• KT-18794 kotlinc-jvm prints an irrelevant error message when a JVM Home directory does not exist
• KT-3045 Report error instead of failing with exception on "kotlinc -script foo.kt"
• KT-18754 Rename CLI argument "-module" to "-Xbuild-file"
• KT-18927 run kotlin app crashes eclipse

Tools. Gradle

• KT-10537 Gradle plugin doesn't pick up changed project.buildDir
• KT-17031 JVM crash on in-process compilation in Gradle with debug
• KT-17035 Gradle Kotlin Plugin can not compile tests calling source internal fields/variables if compileJava dumps classes to a different directory and then copied classes are moved to sourceSets.main.output.classesDir by a different task
• KT-17197 Gradle Kotlin plugin does not wire task dependencies correctly, causing compilation failures
• KT-17618 Pass freeCompilerArgs to compiler unchanged
• KT-18262 kotlin-spring should also open @SpringBootTest classes
• KT-18647 Kotlin incremental compile cannot be disabled.
• KT-18832 Java version parsing error with Gradle Kotlin plugin + JDK 9

Tools. J2K

• KT-10762 J2K removes empty lines from Doc-comments
• KT-13146 J2K goes into infinite loop with anonymous inner class that references itself
• KT-15761 Converting Java to Kotlin corrupts string which includes escaped backslash
• KT-16133 Converting switch statement inserts dead code (possibly as a false positive for fall-through)
• KT-16142 Kotlin Konverter produces empty line in Kdoc
• KT-18038 Java to Kotlin converter messes up empty lines while converting from JavaDoc to KDoc
• KT-18051 Doesn't work the auto-convert Java to Kotlin in Android Studio 3.0
• KT-18141 J2K changes semantic when while does not have a body
• KT-18142 J2K changes semantics when if does not have a body
• KT-18512 J2K Incorrect null parameter conversion

Tools. JPS

• KT-14848 JPS: invalid compiler argument causes exception (see also EA-92062)
• KT-16057 Provide better error message when the same compiler argument is set twice
• KT-19155 IllegalArgumentException: Unsupported kind: PACKAGE_LOCAL_VARIABLE_LIST in incremental compilation

Tools. Maven

• KT-18022 kotlin maven plugin - adding dependencies overwrites arguments.pluginClassPath preventing kapt goal from running
• KT-18224 Maven compilation with JDK 9 fails with InaccessibleObjectException

Tools. REPL

• KT-5620 REPL: Support destructuring declarations
• KT-12564 Kotlin REPL Doesn't Perform Many Checks
• KT-15172 REPL: function declarations that contain empty lines throw error
• KT-18181 REPL: support non-headless execution for Swing code
• KT-18349 REPL: do not show warnings when there are errors

Tools. kapt

• KT-18682 Kapt: Anonymous class types are not rendered properly in stubs
• KT-18758 Kotlin 1.1.3 / Kapt fails with gradle
• KT-18799 Kapt3, IC: Kapt does not generate annotation value for constant values in documented types
• KT-19178 Kapt: Build dependencies from 'kapt' configuration should go into the 'kaptCompile' task dependencies
• KT-19179 Kapt: Gradle silently skips 'kotlinKapt' task sometimes
• KT-19211 Kapt3: Generated classes output is not synchronized with Java classes output in pure Java projects (Gradle 4+)

1.1.3-2

Fixes

• Noarg compiler plugin reverted to 1.1.2 behavior: by default, it will not run any initialization code from the generated default constructor. If you want to run initializers, you need to enable the corresponding option as described in the documentation. Note that if a @noarg class has initializers that depend on constructor parameters, you will get incorrect compiler behavior, so you shouldn't enable this option if you have such classes in your project. This resolves KT-18667 and KT-18668.
• KT-18689 Incorrect bytecode generated when passing a bound member reference to an inline function with default argument values
• KT-18377 Syntax error while generating kapt stubs
• KT-18411 Slow debugger step-in into inlined function
• KT-18687 Deadlock in resolve with Kotlin 1.1.3
• KT-18726 Frequent UI hangs in 2017.2 EAPs

1.1.3

Android

New Features

• KT-12049 Kotlin Lint: "Missing Parcelable CREATOR field" could suggest "Add implementation" quick fix
• KT-16712 Show warning in IDEA when using Java 1.8 api in Android
• KT-16843 Android: provide gutter icons for resources like colors and drawables
• KT-17389 Implement Intention "Add Activity / BroadcastReceiver / Service to manifest"
• KT-17465 Add intentions Add/Remove/Redo parcelable implementation

Fixes

• KT-14970 ClassCastException: butterknife.lint.LintRegistry cannot be cast to com.android.tools.klint.client.api.IssueRegistry
• KT-17287 Configure kotlin in Android Studio: don't show menu Choose Configurator with single choice
• KT-17288 Android Studio: please remove menu item Configure Kotlin (JavaScript) in Project
• KT-17289 Android Studio: Hide "Configure Kotlin" balloon if Kotlin is configured from a kt file banner
• KT-17291 Android Studio 2.4: Cannot get property 'metaClass' on null object error after Kotlin configuring
• KT-17610 "Unknown reference: kotlinx"

Compiler

New Features

• KT-11167 Support compilation against JRE 9
• KT-17497 Warn about redundant else branch in exhaustive when

Performance Improvements

• KT-7931 Optimize iteration over strings/charsequences on JVM
• KT-10848 Optimize substitution of inline function with default parameters
• KT-12497 Optimize inlined bytecode for functions with default parameters
• KT-17342 Optimize control-flow for case of many variables
• KT-17562 Optimize KtFile::isScript

Fixes

• KT-4960 Redeclaration is not reported for type parameters of interfaces
• KT-5160 No warning when a lambda parameter hides a variable
• KT-5246 is check fails on cyclic type parameter bounds
• KT-5354 Wrong label resolution when label name clash with fun name
• KT-7645 Prohibit default value for catch-block parameter
• KT-7724 Can never import private member
• KT-7796 Wrong scope for default parameter value resolution
• KT-7984 Unexpected "Unresolved reference" in a default value expression in a local function
• KT-7985 Unexpected "Unresolved reference to a type parameter" in a default value expression in a local function
• KT-8320 It should not be possible to catch a type parameter type
• KT-8877 Automatic labeling doesn't work for infix calls
• KT-9251 Qualified this does not work with labeled function literals
• KT-9551 False warning "No cast needed"
• KT-9645 Incorrect inspection: No cast Needed
• KT-9986 'null as T' should be unchecked cast
• KT-10397 java.lang.reflect.GenericSignatureFormatError when generic inner class is mentioned in function signature
• KT-11474 ISE: Requested A, got foo.A in JavaClassFinderImpl on Java file with package not matching directory
• KT-11622 False "No cast needed" when ambiguous call because of smart cast
• KT-12245 Code with annotation that has an unresolved identifier as a parameter compiles successfully
• KT-12269 False "Non-null type is checked for instance of nullable type"
• KT-12683 A problem with is operator and non-reified type-parameters
• KT-12690 USELESS_CAST compiler warning may break code when fix is applied
• KT-13348 Report useless cast on safe cast from nullable type to the same not null type
• KT-13597 No check for accessing final field in local object in constructor
• KT-13997 Incorrect "Property must be initialized or be abstract" error for property with external accessors
• KT-14381 Possible val reassignment not detected inside init block
• KT-14564 java.lang.VerifyError: Bad local variable type
• KT-14801 Invoke error message if nested class has the same name as a function from base class
• KT-14977 IDE doesn't warn about checking null value of variable that cannot be null
• KT-15085 Label and function naming conflict is resolved in unintuitive way
• KT-15161 False warning "no cast needed" for array creation
• KT-15480 Cannot destruct a list when "if" has an "else" branch
• KT-15495 Internal typealiases in the same module are inaccessible on incremental compilation
• KT-15566 Object member imported in file scope used in delegation expression in object declaration should be a compiler error
• KT-16016 Compiler failure with NO_EXPECTED_TYPE
• KT-16426 Return statement resolved to function instead of property getter
• KT-16813 Anonymous objects returned from private-in-file members should behave as for private class members
• KT-16864 Local delegate + ad-hoc object leads to CCE
• KT-17144 Breakpoint inside when
• KT-17149 Incorrect warning "Kotlin: This operation has led to an overflow"
• KT-17156 No re-parse after lambda was converted to block
• KT-17318 Typo in DSL Marker message cant
• KT-17384 break/continue expression in inlined function parameter argument causes compilation exception
• KT-17457 Suspend + LongRange couldn't transform method node issue in Kotlin 1.1.1
• KT-17479 val reassign is allowed via explicit this receiver
• KT-17560 Overload resolution ambiguity on semi-valid class-files generated by Scala
• KT-17572 try-catch expression in inlined function parameter argument causes compilation exception
• KT-17573 try-finally expression in inlined function parameter argument fails with VerifyError
• KT-17588 Compiler error while optimizer tries to get rid of captured variable
• KT-17590 conditional return in inline function parameter argument causes compilation exception
• KT-17591 non-conditional return in inline function parameter argument causes compilation exception
• KT-17613 'this' expression referring to deprecated class instance is highlighted as deprecated in IDE
• KT-18358 Keep smart pointers instead of PSI elements in JavaElementImpl and its descendants

IDE

New Features

• KT-7810 Separate icon for abstract class
• KT-8617 Recognize TODO method usages and highlight them same as TODO-comment
• KT-12629 Add rainbow/semantic-highlighting for local variables
• KT-14109 support parameter hints in idea plugin
• KT-16645 Support inlay type hints for implicitly typed vals, properties, and functions
• KT-17807 Add Smart Enter processor for object expessions

Performance Improvements

• KT-16995 Typing during in-place refactorings is impossibly laggy
• KT-17331 Frequent long editor freezes
• KT-17383 Slow editing in Kotlin files If breadcrumbs are enabled in module with many dependencies
• KT-17495 Much time spent in LibraryDependenciesCache.getLibrariesAndSdksUsedWith

Fixes

• KT-7848 When you paste text into a string literal special symbols should be escaped
• KT-7954 'Go to symbol' doesn't show containing declaration for local symbols
• KT-9091 Sometimes backticks of the method name with spaces are highlighted with rose background
• KT-10577 Refactor / Move Kotlin + Java files adds wrong import in very specific case
• KT-12856 Import fold region is not updated to include imports added while editing file
• KT-14161 Navigate to symbol doesn't see local named functions
• KT-14601 Formatter inserts unnecessary indent before 'else'
• KT-14639 Incorrect name of code style setting: Align in columns 'case' branches
• KT-15029 "Go to symbol" action doesn't find properties declared in primary constructors
• KT-15255 Move cursor to a better place when creating a new Kotlin file
• KT-15273 Kotlin IDE plugin adds import java.lang.String with "Optimize Imports", making project broken
• KT-16159 Wrong "Constructor call" highlighting if operator is called on newly created object
• KT-16392 Gradle/Maven java module: Add framework support/ Kotlin (Java or JavaScript) adds nothing
• KT-16423 Show expression type doesn't work when selecting from the middle of expression with "Expand Selection"
• KT-16635 Do not show kotlin-specific live templates macros for all context types
• KT-16755 No "Is sublassed by" icon for sealed class
• KT-16775 Rewrite at slice CLASS key: OBJECT_DECLARATION while writing code in IDE
• KT-16803 Suspending iteration is not marked in the gutter by IDEA as suspending invocation
• KT-17037 Editor suggests to import EmptyCoroutineContext.plus for any unresolved +
• KT-17046 Kotlin facet, Compiler plugins: last line is shown empty when not selected
• KT-17088 Settings: Kotlin Compiler: "Destination directory" should be enabled if "Copy library runtime files" is on on the dialog opening
• KT-17094 Kotlin facet, additional command line parameters dialog: please provide a title
• KT-17138 Configure Kotlin in Project: Choose Configurator popup: names could be unified
• KT-17145 Kotlin facet: IllegalArgumentException on attempt to show settings common for several javascript kotlin facets with different moduleKind
• KT-17223 Absolute path to Kotlin compiler plugin in IML
• KT-17293 Project Structure dialog is opened too slow for a project with a lot of empty gradle modules
• KT-17304 IDEA shows wrong type for expressions
• KT-17439 Kotlin: 'autoscroll from source' doesn't work in Structure view
• KT-17448 Regression: Sample Resolve
• KT-17482 Set jvmTarget to 1.8 by default when configuring a project with JDK 1.8
• KT-17492 -jvm-target is ignored by IntelliJ
• KT-17505 LazyLightClassMemberMatchingError from collection implementation
• KT-17517 Compiler options specified as properties are not handled by Maven importer
• KT-17521 Quickfix to enable coroutines should work for Maven projects
• KT-17525 IDE: KNPE at KotlinAddImportActionKt.createSingleImportActionForConstructor() on invalid reference to inner class constructor
• KT-17578 Throwable: "Reported element PsiIdentifier:AnnotationConfiguration is not from the file 'PsiFile:InSource.kt' the inspection 'ImplicitSubclassInspection'"
• KT-17638 ISE in KotlinElementDescriptionProvider.renderShort
• KT-17698 Unknown library format - prevents IDEA from configuring Kotlin JS
• KT-17714 UAST inspection on non-physical element
• KT-17722 IntelliJ plugin uses wrong JVM target when Kotlin Facet is not configured
• KT-17770 Kotlin IntelliJ plugin fails to re-index Gradle script classpath after change to the plugins block
• KT-17777 Logger$EmptyThrowable: "Facet Kotlin (app) [kotlin-language] not found" at FacetModelImpl.removeFacet()
• KT-17810 Exception from unused import inspection leads to code analysis hangs
• KT-17821 In Kotlin's plugin KotlinJsMetadataVersionIndex loads file with VfsUtilCore.loadText
• KT-17840 Show expression type on this shows bogus disambiguation
• KT-17845 Searching for usages of override property in primary constructor doesn't suggest base property search
• KT-17847 Kotlin facet: strange warning if API version = 1.2
• KT-17857 Java should see classes affected by "allopen" plugin as open
• KT-17861 Setting 'kotlin.experimental.coroutines "enable"' doesn't work for Android projects
• KT-17875 New Project/Module with Kotlin: on attempt to use libraries from plugin IDE suggests to rewrite them
• KT-17876 New Project/Module with Kotlin: with "Copy to" option only part of jars are copied
• KT-17899 Navigate to symbol: vararg signatures are indistinguishable from non-vararg ones
• KT-18070 KtLightModifierList.hasExplicitModifier("default") is true for interface method with body

IDE. Completion

New Features

• KT-11250 Auto-completion for convention function names in 'operator fun' definitions
• KT-12293 Autocompletion should propose lateinit var in addition to lateinit
• KT-13673 Add 'companion { ... }' code completion opsion

Performance Improvements

• KT-10978 Kotlin + JOOQ + Intellij performance is unusable
• KT-16715 Typing is very slow since 1.1
• KT-16850 UI freeze for several seconds during inserting selected completion variant

Fixes

• KT-13524 Completing the keyword 'constructor' before a primary constructor wrongly inserts parentheses
• KT-14665 No completion for "else" keyword
• KT-15603 Annoying completion when making a primary constructor private
• KT-16161 Completion of 'onEach' inserts unneeded angular brackets
• KT-16856 Code completion optimization

IDE. Debugger

• KT-15823 Breakpoints not work inside crossinline from init of object passed into collection
• KT-15854 Debugger not able to evaluate internal member functions
• KT-16025 Step into suspend functions stops at the function end
• KT-17295 Can't stop in kotlin.concurrent.timer lambda parameter

IDE. Inspections and Intentions

New Features

• KT-10981 Quickfix for INAPPLICABLE_JVM_FIELD to replace with 'const' when possible
• KT-14046 Add intention to add inline keyword if a function has parameter with noinline and/or crossinline modifier
• KT-14137 Add intention to convert top level val with object expression to object
• KT-15903 QuickFix to add/remove suspend in hierarchies
• KT-16786 Intention to add "open" modifier to a non-private method or property in an open class
• KT-16851 Quickfix adding qualifier @call to unallowed 'return' in closures
• KT-17053 Inspection to detect use of callable reference as a lambda body
• KT-17054 Intention/ inspection to convert 'if' with 'is' check to 'as?' with safe call
• KT-17191 Intention to name anonymous (_) parameter
• KT-17221 Inspection for recursive calls in property accessors
• KT-17520 Quickfix to update language/API version should work for Maven projects
• KT-17650 Add quickfix inserting 'lateinit' modifier for not-initialized property
• KT-17660 Inspection: data class copy without named argument(s)

Fixes

• KT-10211 "Replace infix call with ordinary call" appears both as a quickfix and as an intention in the pop-up
• KT-11003 Invalid quickfix in companion object for open properties
• KT-12805 False positive redundant semicolon after while without block expression
• KT-14335 Unexpected range of "convert lambda to reference" intention
• KT-14435 "Use destructuring declaration" should be available as intention even without usages
• KT-14443 IDEA intention suggest to make a method in an interface final
• KT-14820 Convert function to property shouldn't insert explicit type if it was inferred previously
• KT-15076 Replace if with elvis inspection should not be reported in some complex cases
• KT-15543 "Convert receiver to parameter" refactoring breaks code
• KT-15942 "Convert to secondary constructor" intention is available for data class
• KT-16136 Wrong type parameter variance suggested if type parameter is used in nested anonymous object
• KT-16339 Incorrect warning: 'protected' visibility is effectively 'private' in a final class
• KT-16577 "Redundant semicolon" is not reported for semicolon after package statement in file with no imports
• KT-17079 Kotlin: Bad conversion of double comparison to range check if bounds have mixed types
• KT-17372 Specify explicit lambda signature handles anonymous parameters incorrectly
• KT-17404 Editor: attempt to pass type parameter as reified argument causes AE "Classifier descriptor of a type should be of type ClassDescriptor" at DescriptorUtils.getClassDescriptorForTypeConstructor()
• KT-17408 "Convert to secondary constructor" intention is available for annotation parameters
• KT-17503 Intention "To raw string literal" should handle string concatenations
• KT-17599 "Make primary constructor internal" intention is available for annotation class
• KT-17600 "Make primary constructor private" intention is available for annotation class
• KT-17707 "Final declaration can't be overridden at runtime" inspection reports Kotlin classes non final due to compiler plugin
• KT-17708 "Move to class body" intention is available for annotation parameters
• KT-17762 'Convert to range' intention generates inequivalent code for doubles

IDE. Refactorings

Performance Improvements

• KT-17234 Refactor / Inline on library property is rejected after GUI freeze for a while
• KT-17333 KotlinChangeInfo retains 132MB of the heap

Fixes

• KT-8370 "Can't move to original file" should not be an error
• KT-8930 Refactor / Move preivew: moved element is shown as reference, and its file as subject
• KT-9158 Refactor / Move preview mentions the package statement of moved class as a usage
• KT-13192 Refactor / Move: to another class: "To" field code completion suggests facade and Java classes
• KT-13466 Refactor / Move: class to upper level: the package statement is not updated
• KT-15519 KDoc comments for data class values get removed by Change Signature
• KT-17211 Refactor / Move several files: superfluous FQN is inserted into reference to same file's element
• KT-17213 Refactor / Inline Function: parameters of lambda as call argument turn incompilable
• KT-17272 Refactor / Inline Function: unused String literal in parameters is kept (while unsed Int is not)
• KT-17273 Refactor / Inline Function: PIEAE: "Element: class org.jetbrains.kotlin.psi.KtCallExpression because: different providers" at PsiUtilCore.ensureValid()
• KT-17296 Refactor / Inline Function: UOE at ExpressionReplacementPerformer.findOrCreateBlockToInsertStatement() for call of multi-statement function in declaration
• KT-17330 Inline kotlin function causes an infinite loop
• KT-17395 Refactor / Inline Function: arguments passed to lambda turns code to incompilable
• KT-17496 Refactor / Move: calls to moved extension function type properties are updated (incorrectly)
• KT-17515 Refactor / Move inner class to another class, Move companion object: disabled in editor, but available in Move dialog
• KT-17526 Refactor / Move: reference to companion member gets superfluous companion name in certain cases
• KT-17538 Refactor / Move: moving file with import alias removes alias usage from code
• KT-17545 Refactor / Move: false Problems Detected on moving class using parent's protected class, object
• KT-18018 F5 (for Copy) does not work for Kotlin files anymore
• KT-18205 Moving multiple classes causes imports to be converted to fully qualified class names

Infrastructure

• KT-14988 Support running the Kotlin compiler on Java 9
• KT-17112 IncompatibleClassChangeError on invoking Kotlin compiler daemon on JDK 9

JavaScript

Fixes

• KT-12926 JS: use # instead of @ when linking to sourcemap from generated code
• KT-13577 Double.hashCode is zero for big numbers
• KT-15135 JS: support friend modules
• KT-15484 JS: (node): println with object /number argument leads to "TypeError: Invalid data, chunk must be a string or buffer, not object/number"
• KT-16658 JS: Suspend function with default param value in interface
• KT-16717 KotlinJs - copy() on data class doesn't work with when there is a secondary constructor
• KT-16745 JS: initialize enum fields before calling companion objects's initializer
• KT-16951 JS: coroutine suspension point is not inserted when inlining suspend function with tail call to another suspend function
• KT-16979 Kotlin.js : Intellij test and productions sources produce a AMD module with the same name
• KT-17067 JS: suspendCoroutine not working as expected
• KT-17219 Hexadecimal literals in js(...) argument are replaced by wrong decimal constants
• KT-17281 JS: wrong code generated for a recursive call in suspend function
• KT-17446 JS: incorrect code generated for call to suspendCoroutineOrReturn when the same function calls another suspend function
• KT-17540 Incorrect inlining optimization of also/apply function
• KT-17700 Wrong code generated for 'str += (nullableChar ?: break)'
• KT-17966 JS: Char literal inside of string template

Libraries

• KT-17453 Array iterators throw IndexOutOfBoundsException instead of NoSuchElementException
• KT-17635 Document String#toIntOfNull may throw an exception
• KT-17686 takeLast(n) incorrectly performs drop(n) for Lists without random access
• KT-17704 Update JavaDoc for ReentrantReadWriteLock.write to put more stress on the fact that to upgrade to write lock, read lock is first released.
• KT-17853 JS: Confusing parameter names in 'Math.atan2`
• KT-18092 Issue using kotlin-reflect with proguard: missing annotations Mutable and ReadOnly
• KT-18210 JS String::match(regex) should have nullable return type

Reflection

• KT-17055 NPE in hashCode and equals of kotlin.jvm.internal.FunctionReference (on local functions)
• KT-17594 Cache the result of val Class.kotlin: KClass
• KT-18494 KNPE from Kotlin reflection (sometimes) in UtilKt.toJavaClass

Tools

• KT-16692 No-Arg-Constructor plugin should generate code to initialize delegates

Tools. CLI

• KT-17696 Allow kotlinc to take friend modules as .jar files
• KT-17697 Allow kotlinc to take .java files as arguments
• KT-9370 not possible to pass an argument that starts with "-" to a script using kotlinc
• KT-17100 "kotlin" launcher script: do not add current working directory to classpath if explicit "-classpath" is specified
• KT-17140 Warning "classpath entry points to a file that is not a jar file" could just be disabled
• KT-17264 Change the format of advanced CLI arguments ("-X...") to require value after "=", not a whitespace
• KT-18180 Modules not exported by java.se are not readable when compiling against JRE 9

Tools. Gradle

• KT-15151 Kapt3: Support incremental compilation of Java stubs
• KT-16298 Gradle: IOException "Parent file doesn't exist:/.../artifact-difference.tab.len" on non-incremental clean after incremental build
• KT-17681 Support the new API of Android Gradle plugin (2.4.0+)
• KT-17936 Circular dependency between gradle tasks dataBindingExportBuildInfoDebug and compileDebugKotlin
• KT-17960 Improve test of memory leak with Gradle daemon
• KT-18047 Gradle kotlin options should use unset value as default for languageVersion and apiVersion

Tools. J2K

• KT-16754 J2K: Apply quick-fixes from EDT thread only
• KT-16816 Java To Kotlin bug: if + chained assignment doesn't include brackets
• KT-17230 J2K Deadlock
• KT-17712 Exception in J2K during InlineCodegen convertion: com.intellij.psi.impl.source.JavaDummyHolder cannot be cast to com.intellij.psi.PsiJavaFile

Tools. JPS

• KT-16568 modulesWhoseInternalsAreVisible in ModuleDependencies are not filled in for JS projects
• KT-17387 When compiling in the IDE, progress tracker says "configuring the compilation environment" when it clearly isn't
• KT-17665 JPS: Kotlin: The '-d' option with a directory destination is ignored because '-module' is specified
• KT-17801 Unresolved supertypes from JRE on JDK 9 in JPS

Tools. Maven

• KT-17093 Import from maven: please provide a special tag for coroutine option
• KT-10028 Support parallel builds in maven
• KT-15050 Random build failures using maven 3 (multi-thread) + bamboo
• KT-15318 Intermitent Kotlin compilation errors
• KT-16283 Maven compiler plugin warns, "Source root doesn't exist"
• KT-16743 Update configuration options in Kotlin Maven plugin
• KT-16762 Maven: JS compiler option main is missing

Tools. REPL

• KT-5822 Exception on package directive in REPL
• KT-10060 REPL: Cannot execute more than 255 lines
• KT-17365 REPL crash when referencing a variable whose definition threw an exception

Tools. kapt

• KT-17245 Kapt: Javac compiler arguments can't be specified in Gradle
• KT-17418 "The following options were not recognized by any processor: '[kapt.kotlin.generated]'" warning from Javac shouldn't be shown even if no processor supports the generated annotation
• KT-17456 kapt3: NoClassDefFound com/sun/tools/javac/util/Context
• KT-17567 Kapt (1.1.2-eap-77) generates invalid Java stub for internal class
• KT-17620 Kapt3 IC: avoid running AP when API is not changed
• KT-17959 Kapt3 doesn't preserve method parameter names for abstract methods
• KT-17999 Cannot use KAPT3 1.1.2-4 in Android Studio java libs (null TypeCastException to WrappedVariantData<*> on Gradle Sync)

1.1.2

Compiler

Front-end

• KT-16113 Support destructuring parameters of suspend lambda with suspend componentX
• KT-3805 Report error on double constants out of range
• KT-6014 Wrong ABSTRACT_MEMBER_NOT_IMPLEMENTED for toString implemented by delegation
• KT-8959 Missing diagnostic when trying to call inner class constructor qualificated with outer class name
• KT-12477 Do not report 'const' inapplicability on property of error type
• KT-11010 NDFDE for local object with type parameters
• KT-12881 Descriptor wasn't found for declaration TYPE_PARAMETER
• KT-13342 Unqualified super call should not resolve to a method of supertype overriden in another supertype
• KT-14236 Allow to use emptyArray in annotation
• KT-14536 IllegalStateException: Type parameter T not found for lazy class Companion at LazyDeclarationResolver visitTypeParameter
• KT-14865 Throwable exception at KotlinParser parseLambdaExpression on typing { inside a string inside a lambda
• KT-15516 Compiler error when passing suspending extension-functions as parameter and casting stuff to Any
• KT-15802 Java constant referenced using subclass is not considered a constant expression
• KT-15872 Constant folding is mistakenly triggered for user function
• KT-15901 Unstable smart cast target after type check
• KT-15951 Callable reference to class constructor from object is not resolved
• KT-16232 Prohibit objects inside inner classes
• KT-16233 Prohibit inner sealed classes
• KT-16250 Import methods from typealias to object throws compiler exception "Should be class or package: typealias"
• KT-16272 Missing deprecation and SinceKotlin-related diagnostic for variable as function call
• KT-16278 Public member method can't be used for callable reference because of private static with the same name
• KT-16372 'mod is deprecated' warning should not be shown when language version is 1.0
• KT-16484 SimpleTypeImpl should not be created for error type: ErrorScope
• KT-16528 Error: Loop in supertypes when using Java classes with type parameters having raw interdependent supertypes
• KT-16538 No smart cast when equals is present
• KT-16782 Enum entry is incorrectly forbidden on LHS of '::' with language version 1.0
• KT-16815 Assertion error from compiler: unexpected classifier: class DeserializedTypeAliasDescriptor
• KT-16931 Compiler cannot see inner class when for outer class exist folder with same name
• KT-16956 Prohibit using function calls inside default parameter values of annotations
• KT-8187 IAE on anonymous object in the delegation specifier list
• KT-8813 Do not report unused parameters for anonymous functions
• KT-12112 Do not consider nullability of error functions and properties for smart casts
• KT-12276 No warning for unnecessary non-null assertion after method call with generic return type
• KT-13648 Spurious warning: "Elvis operator (?:) always returns the left operand of non-nullable type (???..???)"
• KT-16264 Forbid usage of _ without backticks
• KT-16875 Decrease severity of unused parameter in lambda to weak warning
• KT-17136 ModuleDescriptorImpl.allImplementingModules should be evaluated lazily
• KT-17214 Do not show warning about useless elvis for error function types
• KT-13740 Plugin crashes at accidentally wrong annotation argument type
• KT-17597 Pattern::compile resolves to private instance method in 1.1.2

Back-end

• KT-8689 NoSuchMethodError on local functions inside inlined lambda with variables captured from outer context
• KT-11314 Abstract generic class with Array<Array> parameter compiles fine but fails at runtime with "Bad type on operand stack" VerifyError
• KT-12839 Two null checks are generated when manually null checking platform type
• KT-14565 Cannot pop operand off empty stack when compiling enum class
• KT-14566 Make kotlin.jvm.internal.Ref$...Ref classes serializable
• KT-14567 VerifyError: Bad type on operand stack (generics with operator methods)
• KT-14607 Incorrect class name "ava/lang/Void from AsyncTask extension function
• KT-14811 Unecessary checkcast generated in parameterized functions.
• KT-14963 unnecessary checkcast java/lang/Object
• KT-15105 Comparing Chars in a Pair results in ClassCastException
• KT-15109 Subclass from a type alias with named parameter in constructor will produce compiler exception
• KT-15192 Compiler crashes on certain companion objects: "Error generating constructors of class Companion with kind IMPLEMENTATION"
• KT-15424 javac crash when calling Kotlin function having generic varargs with default and @JvmOverloads
• KT-15574 Can't instantiate Array through Type Alias
• KT-15594 java.lang.VerifyError when referencing normal getter in @JvmStatic getters inside an object
• KT-15759 tailrec suspend function fails to compile
• KT-15862 Inline generic functions can unexpectedly box primitives
• KT-15871 Unnecessary boxing for equality operator on inlined primitive values
• KT-15993 Property annotations are stored in private fields and killed by obfuscators
• KT-15997 Reified generics don't work properly with crossinline functions
• KT-16077 Redundant private getter for private var in a class within a JvmMultifileClass annotated file
• KT-16194 Code with unnecessary safe call contains redundant boxing/unboxing for primitive values
• KT-16245 Redundant null-check generated for a cast of already non-nullable value
• KT-16532 Kotlin 1.1 RC - Android cross-inline synchronized won't run
• KT-16555 VerifyError: Bad type on operand stack
• KT-16713 Insufficient maximum stack size
• KT-16720 ClassCastException during compilation
• KT-16732 Type 'java/lang/Number' (current frame, stack[0]) is not assignable to 'java/lang/Character
• KT-16929 VerifyError when using bound method reference on generic property
• KT-16412 Exception from compiler when try call SAM constructor where argument is callable reference to nested class inside object
• KT-17210 Smartcast failure results in "Bad type operand on stack" runtime error

Tools

• KT-15420 Maven, all-open plugin: in console the settings of all-open are always reported as empty
• KT-11916 Provide incremental compilation for Maven
• KT-15946 Kotlin-JPA plugin support for @Embeddable
• KT-16627 Do not make private members open in all-open plugin
• KT-16699 Script resolving doesn't work with custom templates located in an external jar
• KT-16812 import in .kts file does not works
• KT-16927 Using KotlinJsr223JvmLocalScriptEngineFactory causes multiple warnings
• KT-15562 Service is dying
• KT-17125 > Failed to apply plugin [id 'kotlin'] > For input string: “”

Kapt

• KT-12432 Dagger 2 does not generate Component which was referenced from Kotlin file.
• KT-8558 KAPT only works with service-declared annotation processors
• KT-16753 kapt3 generates invalid stubs when IC is enabled
• KT-16458 kotlin-kapt / kapt3: "cannot find symbol" error for companion object with same name as enclosing class
• KT-14478 Add APT / Kapt support to the maven plugin
• KT-14070 Kapt3: kapt doesn't compile generated Kotlin files and doesn't use the "kapt.kotlin.generated" folder anymore
• KT-16990 Kapt3: java.io.File cannot be cast to java.lang.String
• KT-16965 Error:Kotlin: Multiple values are not allowed for plugin option org.jetbrains.kotlin.kapt:output
• KT-16184 AbstractMethodError in Kapt3ComponentRegistrar while compiling from IntelliJ 2016.3.4 using Kotlin 1.1.0-beta-38

Gradle

• KT-15084 Navigation into sources of gradle-script-kotlin doesn't work
• KT-16003 Gradle Plugin Fails When Run From Jenkins On Multiple Nodes
• KT-16585 Kotlin Gradle Plugin makes using Gradle Java incremental compiler not work
• KT-16902 Gradle plugin compilation on daemon fails on Linux ARM
• KT-14619 Gradle: The '-d' option with a directory destination is ignored because '-module' is specified
• KT-12792 Automatically configure standard library dependency and set its version equal to compiler version if not specified
• KT-15994 Compiler arguments are not copied from the main compile task to kapt task
• KT-16820 Changing compileKotlin.destinationDir leads to failure in :copyMainKotlinClasses task due to an NPE
• KT-16917 First connection to daemon after start timeouts when DNS is slow
• KT-16580 Kotlin gradle plugin cannot resolve the kotlin compiler

Android support

• KT-16624 Implement quickfix "Add TargetApi/RequiresApi annotation" for Android api issues
• KT-16625 Implement quickfix "Surround with if (VERSION.SDK_INT >= VERSION_CODES.SOME_VERSION) { ... }" for Android api issues
• KT-16840 Kotlin Gradle plugin fails with Android Gradle plugin 2.4.0-alpha1
• KT-16897 Gradle plugin 1.1.1 duplicates all main classes into Android instrumentation test APK
• KT-16957 Android Extensions: Support Dialog class
• KT-15023 Android gradle installDebugAndroidTest fails unless you first call gradle assembleDebugAndroidTest
• KT-12769 "Name for method must be provided" error occurs on trying to use spaces in method name in integration tests in Android
• KT-12819 Kotlin Lint: False positive for "Unconditional layout inflation" when using elvis operator
• KT-15116 Kotlin Lint: problems in property accessors are not reported
• KT-15156 Kotlin Lint: problems in annotation parameters are not reported
• KT-15179 Kotlin Lint: problems inside local function are not reported
• KT-14870 Kotlin Lint: problems inside local class are not reported
• KT-14920 Kotlin Lint: "Android Lint for Kotlin | Incorrect support annotation usage" inspection does not report problems
• KT-14947 Kotlin Lint: "Calling new methods on older versions" could suggest specific quick fixes
• KT-12741 Android Extensions: Enable IDE plugin only if it is enabled in the build.gradle file
• KT-13122 Implement '@RequiresApi' intention for android and don't report warning on annotated classes
• KT-16680 Stack overflow in UAST containsLocalTypes()
• KT-15451 Support "Android String Reference" folding in Kotlin files
• KT-16132 Renaming property provided by kotlinx leads to renaming another members
• KT-17200 Unable to build an android project
• KT-13104 Incorrect resource name in Activity after renaming ID attribute value in layout file
• KT-17436 Refactor | Rename android:id corrupts R.id references in kotlin code
• KT-17255 Kotlin 1.1.2 EAP is broken with 2.4.0-alpha3
• KT-17610 "Unknown reference: kotlinx"

IDE

• KT-6159 Inline Method refactoring
• KT-4578 Intention to move property between class body and constructor parameter
• KT-8568 Provide a QuickFix to replace type Array<Int> in annotation with IntArray
• KT-10393 Detect calls to functions returning a lambda from expression body which ignore the return value
• KT-11393 Inspection to highlight and warn on usage of internal members in other module from Java
• KT-12004 IDE inspection that destructuring variable name matches the other name in data class
• KT-12183 Intention converting several calls with same receiver to 'with'/apply/run
• KT-13111 Support bound references in lambda-to-reference intention / inspection
• KT-15966 Create quickfix for DELEGATED_MEMBER_HIDES_SUPERTYPE_OVERRIDE
• KT-16074 Introduce a quick-fix adding noinline modifier for a value parameter of suspend function type
• KT-16131 Add quickfix for: Cannot access member: it is invisible (private in supertype)
• KT-16188 Add create class quickfix
• KT-16258 Add intention to add missing components to destructuring assignment
• KT-16292 Support "Reference to lambda" for bound references
• KT-11234 Debugger won't hit breakpoint in nested lamba
• KT-12002 Improve completion for closure parameters to work in more places
• KT-15768 It would be nice to show in Kotlin facet what compiler plugins are on and their options
• KT-16022 Kotlin facet: provide UI to navigate to project settings
• KT-16214 Do not hide package kotlin.reflect.jvm.internal from auto-import and completion, inside package "kotlin.reflect"
• KT-16647 Don't create kotlinc.xml if the settings don't differ from the defaults
• KT-16649 All Gradle related classes should be moved to optional dependency section of plugin.xml
• KT-16800 Autocomplete for closure with single arguments

Bug fixes

• KT-16316 IDE: don't show Kotlin Scripting section when target platform is JavaScript
• KT-16317 IDE: some fields stay enabled in an facet when use project settings was chosen
• KT-16596 Hang in IntelliJ while scanning zips
• KT-16646 The flag to enable coroutines does not sync from gradle file in Android Studio
• KT-16788 Importing Kotlin Maven projects results in invalid .iml
• KT-16827 kotlin javascript module not recognized by gradle sync when an android module is present
• KT-16848 Regression: completion after dot in string interpolation expression doesn't work if there are no curly braces
• KT-16888 "Multiple values are not allowed for plugin option org.jetbrains.kotlin.android:package" when rebuilding project
• KT-16980 Accessing language version settings for a module performs runtime version detection on every access with no caching
• KT-16991 Navigate to receiver from this in extension function
• KT-16992 Navigate to lambda start from auto-generated 'it' parameter
• KT-12264 AssertionError: Resolver for 'completion/highlighting in LibrarySourceInfo for platform JVM' does not know how to resolve ModuleProductionSourceInfo
• KT-13734 Annotated element search is slow
• KT-14710 Sample references aren't resolved in IDE
• KT-16415 Dependency leakage with Kotlin IntelliJ plugin, using gradle-script-kotlin, and the gradle-intellij-plugin
• KT-16837 Slow typing in Kotlin file because of ImportFixBase
• KT-16926 'implement' dependency is not transitive when importing gradle project to IDEA
• KT-17141 Running test from gutter icon fails in AS 2.4 Preview 3
• KT-17162 Plain-text Java copy-paste to Kotlin file results in exception
• KT-16714 J2K: Write access is allowed from event dispatch thread only
• KT-14058 Unexpected error MISSING_DEPENDENCY_CLASS
• KT-9275 Unhelpful IDE warning "Configure Kotlin"
• KT-15279 'Kotlin not configured message' should not be displayed while gradle sync is in progress
• KT-11828 Configure Kotlin in Project: failure for Gradle modules without build.gradle (IDEA creates them)
• KT-16571 Configure Kotlin in Project does not suggest just published version
• KT-16590 Configure kotlin warning popup after each sync gradle
• KT-16353 Configure Kotlin in Project: configurators are not suggested for Gradle module in non-Gradle project with separate sub-modules for source sets
• KT-16381 Configure Kotlin dialog suggests modules already configured with other platforms
• KT-16401 Configure Kotlin in the project adds incorrect dependency kotlin-stdlib-jre8 to 1.0.x language
• KT-12261 Partial body resolve doesn't resolve anything in object literal used as an expression body of a method
• KT-13013 "Go to Type Declaration" doesn't work for extension receiver and implict lambda parameter
• KT-13135 IDE goes in an infinite indexing loop if a .kotlin_module file is corrupted
• KT-14129 for/iter postfix templates should be applied for string, ranges and mutable collections
• KT-14134 Allow to apply for/iter postfix template to map
• KT-14871 Idea and Maven is not in sync with ModuleKind for Kotlin projects
• KT-14986 Disable postfix completion when typing package statements
• KT-15200 Show implementation should show inherited classes if a typealias to base class/interface is used
• KT-15398 Annotations find usages in annotation instance site
• KT-15536 Highlight usages: Class with primary constructor isn't highlighted when caret is on constructor invocation
• KT-15628 Change error message if both KotlinJavaRuntime and KotlinJavaScript libraries are present in the module dependencies
• KT-15947 Kotlin facet: Target platform on importing from a maven project should be filled the same way for different artifacts
• KT-16023 Kotlin facet: When "Use project settings" is enabled, respective fields should show values from the project settings
• KT-16698 Kotlin facet: modules created from different gradle sourcesets have the same module options
• KT-16700 Kotlin facet: jdkHome path containing spaces splits into several additional args after import
• KT-16776 Kotlin facet, import from maven: free arguments from submodule doesn't override arguments from parent module
• KT-16550 Kotlin facet from Maven: provide error messages if additional command line parameters are set several times
• KT-16313 Kotlin facet: unify filling up information about included AllOpen/NoArg plugins on importing from Maven and Gradle
• KT-16342 Kotlin facet: JavaScript platform is not detected if there are 2 versions of stdlib in dependencies
• KT-16032 Kotlin code formatter merges comment line with non-comment line
• KT-16038 UI blocked on pasting java code into a kotlin file
• KT-16062 Kotlin breakpoint doesn't work in some lambda in Rider project.
• KT-15855 Can't evaluate expression in @JvmStatic method
• KT-16667 Kotlin debugger "smart step into" fail on method defined in the middle of class hierarchy
• KT-16078 Formatter puts empty body braces on different lines when KDoc is present
• KT-16265 Parameter info doesn't work with type alias constructor
• KT-14727 Wrong samples for some postfix templates

Inspections / Quickfixes

• KT-17002 Make "Lambda to Reference" inspection off by default
• KT-14402 Inspection "Use destructuring declaration" for lambdas doesn't work when parameter is of type Pair
• KT-16857 False "Remove redundant 'let'" suggestion
• KT-16928 Surround with null check quickfix works badly in case of qualifier
• KT-15870 Move quick fix of "Package name does not match containing directory" inspection: Throwable "AWT events are not allowed inside write action"
• KT-16128 'Add label to loop' QF proposed when there's already a label
• KT-16828 Don't suggest destructing declarations if not all components are used
• KT-17022 Replace deprecated in the whole project may miss some usages in expression body

Refactorings, Intentions

• KT-7516 Rename refactoring doesn't rename related labels
• KT-7520 Exception when try rename label from usage
• KT-8955 Refactor / Move package: KNPE at KotlinMoveDirectoryWithClassesHelper.postProcessUsages() with not matching package statement
• KT-11863 Refactor / Move: moving referred file level elements to another package keeps reference to old FQN
• KT-13190 Refactor / Move: no warning on moving class containing internal member to different module
• KT-13341 Convert lambda to function reference intention is not available for object member calls
• KT-13755 When (java?) class is moved redundant imports are not removed
• KT-13911 Refactor / Move: "Problems Detected" dialog is not shown on moving whole .kt file
• KT-14401 Can't rename implicit lambda parameter 'it' when caret is placed right after the last character
• KT-14483 "Argument of NotNull parameter must be not null" in KotlinTryCatchSurrounder when using "try" postfix template
• KT-15075 KNPE in "Specify explicit lambda signature"
• KT-15190 Refactor / Move: false Problems Detected on moving class using parent's protected member
• KT-15250 Convert anonymous object to lambda is shown when conversion not possible due implicit calls on this
• KT-15339 Extract Superclass is enabled for any element: CommonRefactoringUtil$RefactoringErrorHintException: "Superclass cannot be extracted from interface" at ExtractSuperRefactoring.performRefactoring()
• KT-15559 Kotlin: Moving classes to different packages breaks references to companion object's properties
• KT-15556 Convert lambda to reference isn't proposed for parameterless constructor
• KT-15586 ISE during "Move to a separate file"
• KT-15822 Move class refactoring leaves unused imports
• KT-16108 Cannot rename class on the companion object reference
• KT-16198 Extract method refactoring should order parameters by first usage
• KT-17006 Refactor / Move: usage of library function is reported as problem on move between modules with different library versions
• KT-17032 Refactor / Move updates references to not moved class from the same file
• KT-11907 Move to package renames file to temp.kt
• KT-16468 Destructure declaration intention should be applicable for Pair
• KT-16162 IAE for destructuring declaration entry from KotlinFinalClassOrFunSpringInspection
• KT-16556 Move refactoring shows Refactoring cannot be performed warning.
• KT-16605 NPE caused by Rename Refactoring of backing field when caret is after the last character
• KT-16809 Move refactoring fails badly
• KT-16903 "Convert to primary constructor" doesn't update supertype constructor call in supertypes list in case of implicit superclass constructor call

JS

• KT-6627 JS: test sources doesn't compile from IDE
• KT-13610 JS: boxed Double.NaN is not equal to itself
• KT-16012 JS: prohibit nested declarations, except interfaces inside external interface
• KT-16043 IDL: mark inline helper function as InlineOnly
• KT-16058 JS: getValue/setValue don't work if they are declared as suspend
• KT-16164 JS: Bad getCallableRef in suspend function
• KT-16350 KotlinJS - wrong code generated when temporary variables generated for RHS of && operation
• KT-16377 JS: losing declarations of temporary variables in secondary constructors
• KT-16545 JS: ::class crashes at runtime for primitive types (e.g. Int::class, or Double::class)
• KT-16144 JS: inliner can't find function called through inheritor ("fake" override) from another module

Reflection

• KT-9453 ClassCastException: java.lang.Class cannot be cast to kotlin.reflect.KClass
• KT-11254 Make callable references Serializable on JVM
• KT-11316 NPE in hashCode of KProperty object created for delegated property
• KT-12630 KotlinReflectionInternalError on referencing some functions from stdlib
• KT-14731 When starting application from test source root, kotlin function reflection fails in objects defined in sources

Libraries

• KT-16922 buildSequence/Iterator: Infinite sequence terminates prematurely
• KT-16923 Progression iterator doesn't throw after completion
• KT-16994 Classify sequence operations as stateful/stateless and intermediate/terminal
• KT-9786 String.trimIndent doc is misleading
• KT-16572 Add links to Mozilla Developer Network to kdocs of classes that we generate from IDL
• KT-16252 IDL2K: Add ItemArrayLike interface implementation to collection-like classes

1.1.1

IDE

• KT-16714 J2K: Write access is allowed from event dispatch thread only

Compiler

• KT-16801 Accessors of @PublishedApi property gets mangled
• KT-16673 Potentially problematic code causes exception when work with SAM adapters

Libraries

• KT-16557 Correct SinceKotlin(1.1) for all declarations in kotlin.reflect.full

1.1.1-RC

IDE

• KT-16481 Kotlin debugger & bytecode fail on select statement blocks (IllegalStateException: More than one package fragment)

Gradle support

• KT-15783 Gradle builds don't use incremental compilation due to an error: "Could not connect to kotlin daemon"
• KT-16434 Gradle plugin does not compile androidTest sources when Jack is enabled
• KT-16546 Enable incremental compilation in gradle by default

Compiler

• KT-16184 AbstractMethodError in Kapt3ComponentRegistrar while compiling from IntelliJ using Kotlin 1.1.0
• KT-16578 Fix substitutor for synthetic SAM adapters
• KT-16581 VerifyError when calling default value parameter with jvm-target 1.8
• KT-16583 Cannot access private file-level variables inside a class init within the same file if a secondary constructor is present
• KT-16587 AbstractMethodError: Delegates not generated correctly for private interfaces
• KT-16598 Incorrect error: The feature "bound callable references" is only available since language version 1.1
• KT-16621 Kotlin compiler doesn't report an error if a class implements Annotation interface but doesn't implement annotationType method
• KT-16441 NoSuchFieldError: $$delegatedProperties when delegating through provideDelegate in companion object

JavaScript support

• Prohibit function types with receiver as parameter types of external declarations
• Remove extension receiver for function parameters in jQuery declarations

1.1

Compiler exceptions

• KT-16411 Exception from compiler when try to inline callable reference to class constructor inside object
• KT-16412 Exception from compiler when try call SAM constructor where argument is callable reference to nested class inside object
• KT-16413 When we create sam adapter for java.util.function.Function we add incorrect null-check for argument

Standard library

• KT-6561 Drop java.util.Collections package from js stdlib
• javaClass extension property is no more deprecated due to migration problems

IDE

• KT-16329 Inspection "Calls to staic methods in Java interfaces..." always reports warning undependent of jvm-target

1.1-RC

Reflection

• KT-16358 Incompatibility between kotlin-reflect 1.0 and kotlin-stdlib 1.1 fixed

Compiler

Coroutine support

• KT-15938 Changed error message for calling suspend function outside of suspendable context
• KT-16092 Backend crash fixed: "Don't know how to generate outer expression" for destructuring suspend lambda
• KT-16093 Annotations are retained during reading the binary representation of suspend functions
• KT-16122 java.lang.VerifyError fixed in couroutines: (String, null, suspend () -> String)
• KT-16124 Marked as UNSUPPORTED: suspension points in default parameters
• KT-16219 Marked as UNSUPPORTED: suspend get/set, in/!in operators for
• KT-16145 Beta-2 coroutine regression fixed (wrong code generation)

Kapt3

• KT-15524 Fix javac error reporting in Kotlin daemon
• KT-15721 JetBrains nullability annotations are now returned from Element.getAnnotationMirrors()
• KT-16146 Fixed work in verbose mode
• KT-16153 Ignore declarations with illegal Java identifiers
• KT-16167 Fixed compilation error with kapt arguments in build.gradle
• KT-16170 Stub generator now adds imports for corrected error types to stubs
• KT-16176 javac's finalCompiler log is now used to determine annotation processing errors

Backward compatibility

• KT-16017 More graceful error message for disabled features
• KT-16073 Improved backward compatibility mode with version 1.0 on JDK dependent built-ins
• KT-16094 Compiler considers API availability when compiling language features requiring runtime support
• KT-16171 Fixed regression "Unexpected container error on Kotlin 1.0 project"
• KT-16199 Do not import "kotlin.comparisons.*" by default in language version 1.0 mode

Various issues

• KT-16225 enumValues non-reified stub implementation references nonexistent method no more
• KT-16291 Smart cast works now when getting class of instance
• KT-16380 Show warning when running the compiler under Java 6 or 7

JavaScript backend

• KT-16144 Fixed inlining of functions called through inheritor ("fake" override) from another module
• KT-16158 Error is not reported now when library path contains JAR file without JS metadata, report warning instead
• KT-16160 Companion object dispatch receiver translation fixed

Standard library

• KT-7858 Add extension function takeUnless
• javaClass extension property is deprecated, use instance::class.java instead
• Massive deprecations are coming in JS standard library in kotlin.dom and kotlin.dom.build packages

IDE

Configuration issues

• KT-15899 Kotlin facet: language and api version for submodule setup for 1.0 are filled now as 1.0 too
• KT-15914 Kotlin facet works now with multi-selected modules in Project Settings too
• KT-15954 Does not suggest to configure kotlin for the module after each new kt-file creation
• KT-16157 freeCompilerArgs are now imported from Gradle into IDEA
• KT-16206 Idea no more refuses to compile a kotlin project defined as a maven project
• KT-16312 Kotlin facet: import from gradle: don't import options which are set implicitly already
• KT-16325 Kotlin facet: correct configuration after upgrading the IDE plugin
• KT-16345 Kotlin facet: detect JavaScript if the module has language 1.0 kotlin-js-library dependency

Coroutine support

• KT-16109 Error fixed: The -Xcoroutines can only have one value
• KT-16251 Fix detection of suspend calls containing extracted parameters

Intention actions, inspections and quick-fixes

2017.1 compatibility

• KT-15870 "Package name does not match containing directory" inspection: fixed throwable "AWT events are not allowed inside write action"
• KT-15924 Create Test action: fixed throwable "AWT events are not allowed inside write action"

Bug fixes

• KT-14831 Import statement and FQN are not added on converting lambda to reference for typealias
• KT-15545 Inspection "join with assignment" does not change now execution order for properties
• KT-15744 Fix: intention to import sleep wrongly suggests Thread.sleep
• KT-16000 Inspection "join with assignment" handles initialization with 'this' correctly
• KT-16009 Auto-import for JDK classes in .kts files
• KT-16104 Don't insert modifiers (e.g. suspend) before visibility

Completion

• KT-16076 Completion does not insert more FQN kotlin.text.String
• KT-16088 Completion does not insert more FQN for kotlin package
• KT-16110 Keyword 'suspend' completion inside generic arguments
• KT-16243 Performance enhanced after variable of type ArrayList

Various issues

• KT-15291 'Find usages' now does not report property access as usage of getter method in Java class with parameter
• KT-15647 Exception fixed: KDoc link to member of class from different package and module
• KT-16071 IDEA deadlock fixed: when typing "parse()" in .kt file
• KT-16149 Intellij Idea 2017.1/Android Studio 2.3 beta3 and Kotlin plugin 1.1-beta2 deadlock fixed

Coroutine libraries

• KT-15716 Introduced startCoroutineUninterceptedOrReturn coroutine intrinsic
• KT-15718 createCoroutine now returns safe continuation
• KT-16155 Introduced createCoroutineUnchecked intrinsic

Gradle support

• KT-15829 Gradle Kotlin JS plugin: removed false "Duplicate source root:" warning for kotlin files
• KT-15902 JS: gradle task output is now considered as source set output
• KT-16174 Error fixed during IDEA-Gradle synchronization for Kotlin JS
• KT-16267 JS: fixed regression in 1.1-beta2 for multi-module gradle project
• KT-16274 Kotlin JS Gradle unexpected compiler error / absolute path to output file
• KT-16322 Circlet project Gradle import issue fixed

REPL

• KT-15861 Use windows line separator in kotlin's JSR implementation
• KT-16126 Proper jvmTarget for REPL compilation

1.1-Beta2

Language related changes

• KT-7897 Do not require to call enum constructor for each entry if all parameters have default values
• KT-8985 Support T::class.java for T with no non-null upper bound
• KT-10711 Type inference works now on generics for callable references
• KT-13130 Support exhaustive when for sealed trees
• KT-15898 Cannot use type alias to qualify enum entry
• KT-16061 Smart type inference on callable references in 1.1 mode only

Reflection

• KT-8384 Access to the delegate object for a KProperty

Compiler

Coroutine support

• KT-15016 VerifyError with coroutine: fix processing of uninitialized instances
• KT-15527 Coroutine compile error: wrong code generated for safe qualified suspension points
• KT-15552 Accessor implementation of suspended function produces AbstractMethodError
• KT-15715 Coroutine generate invalid invoke
• KT-15820 Coroutine Internal Error regression with dispatcher + this@
• KT-15821 Coroutine internal error regression: Could not inline method call apply
• KT-15824 Coroutine iterator regression: Object cannot be cast to java.lang.Boolean
• KT-15827 Show Kotlin Bytecode shows wrong bytecode for suspending functions
• KT-15907 Bogus error about platform declaration clash with private suspend functions
• KT-15933 Suspend getValue/setValue/provideDelegate do not work properly
• KT-15935 Private suspend function in file causes UnsupportedOperationException: Context does not have a "this"
• KT-15963 Coroutine: runtime error if returned object "equals" does not like comparison to SUSPENDED_MARKER
• KT-16068 Prohibit inline lambda parameters of suspend function type

Diagnostics

• KT-1560 Report diagnostic for a declaration of extension function which will be always shadowed by member function
• KT-12846 Forbid vararg of Nothing
• KT-13227 NO_ELSE_IN_WHEN in when by sealed class instance if is-check for base sealed class is used
• KT-13355 Type mismatch on inheritance is not reported on abstract class
• KT-15010 Missing error on an usage of non-constant property in annotation default argument
• KT-15201 Compiler is complaining about when statement without null condition even if null is checked before.
• KT-15736 Report an error on type alias expanded to a nullable type on LHS of a class literal
• KT-15740 Report error on expression of a nullable type on LHS of a class literal
• KT-15844 Do not allow to access primary constructor parameters from property with custom getter
• KT-15878 Extension shadowed by member should not be reported for infix/operator extensions when member is non-infix/operator
• KT-16010 Do not highlight lambda parameters as unused in 1.0 compatibility mode

Kapt

• KT-15675 Kapt3 does not generate classes annotated with AutoValue
• KT-15697 If an annotation with AnnotationTarget.PROPERTY is tagged on a Kotlin property, it breaks annotation processing
• KT-15803 Kotlin 1.0.6 broke Dagger
• KT-15814 Regression: Kapt is not working in 1.0.6 / 1.1-M04 / 1.1-Beta
• KT-15838 kapt3 1.1-beta: KaptError: Java file parsing error
• KT-15841 1.1-Beta + kapt3 fails to build the project with StackOverflowError
• KT-15915 Kapt: Kotlin class target directory is cleared before compilation (and after kapt task)
• KT-16006 Cannot determine if type is an error type during annotation processing

Exceptions / Errors

• KT-8264 Internal compiler error: java.lang.ArithmeticException: BigInteger: modulus not positive
• KT-14547 NoSuchElementException when compiling callable reference without stdlib in the classpath
• KT-14966 Regression: VerifyError on access super implementation from delegate
• KT-15017 Throwing exception in the end of inline suspend-functions lead to internal compiler error
• KT-15439 Resolved call is not completed for generic callable reference in if-expression
• KT-15500 Exception passing freeCompilerArgs to gradle plugin
• KT-15646 InconsistentDebugInfoException when stepping over throw
• KT-15726 Kotlin compiles invalid bytecode for nested try-catch with return
• KT-15743 Overloaded Kotlin extensions annotates wrong parameters in java
• KT-15868 NPE when comparing nullable doubles for equality
• KT-15995 Can't build project with DataBinding using Kotlin 1.1: incompatible language version
• KT-16047 Internal Error: org.jetbrains.kotlin.util.KotlinFrontEndException while analyzing expression

Type inference issues

• KT-10268 Wrong type inference related to captured types
• KT-11259 Wrong type inference for Java 8 Stream.collect.
• KT-12802 Type inference failed when irrelevant method reference is used
• KT-12964 Support type inference for callable references from parameter types of an expected function type

Smart cast issues

• KT-13468 Smart cast is broken after assignment of 'if' expression
• KT-14350 Make smart-cast work as it does in 1.0 when -language-version 1.0 is used
• KT-14597 When over smartcast enum is broken and breaks all other "when"
• KT-15792 Wrong smart cast after y = x, x = null, y != null sequence

Various issues

• KT-15236 False positive: Null can not be a value of a non-null type
• KT-15677 Modifiers and annotations are lost on a (nullable) parenthesized type
• KT-15707 IDEA unable to parallel compile different projects
• KT-15734 Nullability is lost during expansion of a type alias
• KT-15748 Type alias constructor return type should have a corresponding abbreviation
• KT-15775 Annotations are lost on value parameter types of a function type
• KT-15780 Treat Map.getOrDefault overrides in Java the same way as in 1.0.x compiler with language version 1.0
• KT-15794 Refine backward compatibility mode for additional built-ins members from JDK
• KT-15848 Implement additional annotation processing in the KotlinScriptDefinitionFromAnnotatedTemplate for SamWithReceiver plugin
• KT-15875 Operation has lead to overflow for 'mod' with negative first operand
• KT-15945 Feature Request: Andrey Breslav to grow a beard.

JavaScript backend

Coroutine support

• KT-15834 JS: Local delegate in suspend function
• KT-15892 JS: safe call of suspend functions causes compiler to crash

Diagnostics

• KT-14668 Do not allow declarations in 'kotlin' package or subpackages in JS
• KT-15184 JS: prohibit .. operation with dynamic on left-hand side
• KT-15253 JS: no error when use class external class with JsModule in type context when compiling with plain module kind
• KT-15283 JS: additional restrictions on dynamic
• KT-15961 Could not implement external open class with function with optional parameter

Language feature support

• KT-14035 JS: support implementing CharSequence
• KT-14036 JS: use Int16 for Char when it possible and box to our Char otherwise
• KT-14097 Wrong code generated for enum entry initialization using non-primary no-argument constructor
• KT-15312 JS: map kotlin.Throwable to JS Error
• KT-15765 JS: support callable references on built-in and intrinsic functions and properties
• KT-15900 JS: Support enum entry with empty initializer with vararg constructor

Standard library support

• KT-4141 JS: wrong return type for Date::getTime
• KT-4497 JS: add String.toInt, String.toDouble etc extension functions, parseInt and parseFloat are deprecated in favor of these new ones
• KT-15940 JS: rename all js standard library artifacts (both in maven and in compiler distribution) to kotlin-stdlib-js.jar
• Add Promise<T> external declaration to the standard library
• Types like Date, Math, Console, Promise, RegExp, Json require explicit import from kotlin.js package

External declarations

• KT-15144 JS: rename noImpl to definedExternally
• KT-15306 JS: allow to use definedExternally only inside a body of external declarations
• KT-15336 JS: allow to inherit external classes from kotlin.Throwable
• KT-15905 JS: add a way to control qualifier for external declarations inside file
• Deprecate @native annotation, to be removed in 1.1 release.

Exceptions / Errors

• KT-10894 Infinite indexing at projects with JS modules
• KT-14124 AssertionError: strings file not found on K2JS serialized data

Various issues

• KT-8211 JS: generate dummy init for properties w/o initializer to avoid to have different hidden classes for different instances
• KT-12712 JS: Json should not be a class
• KT-13312 JS: can't use extension lambda where expected lambda and vice versa
• KT-13632 Add template kotlin js project under gradle in "New Project" window
• KT-15278 JS: don't treat property access through dynamic as side effect free
• KT-15285 JS: take into account as many characteristics from the signature as possible when mangling
• KT-15678 JS: Generated local variable named 'element' clashes with actual local variable named 'element'
• KT-15755 JS compiler produces a lot of empty kotlin_file_table files for irrelevant packages
• KT-15770 Name clash between recursive local functions with same name
• KT-15797 JS: wrong code for accessing nested class inside js module
• KT-15863 JS: Extension function reference shifts parameters loosing the receiver
• KT-16049 JS: drop "-kjsm" command line option, merge the logic into "-meta-info"
• KT-16083 JS: rename "-library-files" argument to "-libraries" and change separator from comma to system file separator

Standard Library

• KT-13353 Add Map.minus(key) and Map.minus(keys)
• KT-13826 Add parameter names in function types used in the standard library
• KT-14279 Make String.matches(Regex) and Regex.matches(String) infix
• KT-15399 Iterable.average() now returns NaN for an empty collection
• KT-15975 Move coroutine-related runtime parts to kotlin.coroutines.experimental package
• KT-16030 Move bitwise operations on Byte and Short to kotlin.experimental package
• KT-16026 Classes compiled in 1.1 in 1.0-compatibility mode may contain references to CloseableKt class from 1.1

IDE

Configuration issues

• KT-15621 Copy compiler options values from project settings on creating a kotlin facet for Kotlin (JVM) project
• KT-15623 Copy compiler options values from project settings on creating a kotlin facet for Kotlin (JavaScript) project
• KT-15624 Set option "Use project settings" in newly created Kotlin facet
• KT-15712 Configuring a project with Maven or Gradle should automatically use stdlib-jre7 or stdlib-jre8 instead of standard stdlib
• KT-15772 Facet does not pick up api version from maven
• KT-15819 It would be nice if compileKotlin options are imported into Kotlin facet from gradle/maven
• KT-16015 Prohibit api-version > language-version in Facet and Project Settings

Coroutine support

• KT-14704 Extract Method should work in coroutines
• KT-15955 Quick-fix to enable coroutines through Gradle project configuration
• KT-16018 Hide coroutines intrinsics from import and completion
• KT-16075 Error:Kotlin: The -Xcoroutines can only have one value

Backward compatibility issues

• KT-15134 Do not suggest using destructuring lambda if this will result in "available since 1.1" error
• KT-15918 Quick fix "Set module language level to 1.1" should also set API version to 1.1
• KT-15969 Replace operator with function should use either rem or mod for % depending on language version
• KT-15978 Type alias from Kotlin 1.1 are suggested in completion even if language level is set to 1.0 in settings
• KT-15979 Usages of type aliases are not shown as errors in editor if language version is set to 1.0
• KT-16019 Do not suggest renaming to underscore in 1.0 compatibility mode
• KT-16036 "Create type alias from usage" quick-fix should not be suggested at language level 1.0

Intention actions, inspections and quick-fixes

New features

• KT-9912 Merge ifs intention
• KT-13427 "Specify type explicitly" should support type aliases
• KT-15066 "Make private/.." intention on type aliases
• KT-15709 Add inspection for private primary constructors in data classes as they are accessible via the copy method
• KT-15738 Intention to add suspend modifier to functional type
• KT-15800 Quick-fix to convert a function to suspending on error when calling suspension inside

Bug fixes

• KT-13710 Import intention action should not appear in import list
• KT-14680 import statement to type alias reported as unused when using only TA constructor
• KT-14856 TextView internationalisation intention does not report the problem
• KT-14993 Keep destructuring declaration parameter on inspection "Remove explicit lambda parameter types"
• KT-14994 PsiInvalidElementAccessException and incorrect generation on inspection "Specify type explicitly" on destructuring parameter
• KT-15162 "Remove explicit lambda parameter types" intentions fails with destructuring declaration with KNPE at KtPsiFactory.createLambdaParameterList()
• KT-15311 "Add Import" intention generates incorrect code
• KT-15406 Convert to secondary constructor for enum class should put new members after enum values
• KT-15553 Copy concatenation text to clipboard with Kotlin and string interpolation does not work
• KT-15670 'Convert to lambda' quick fix in IDEA leaves single-line comment and } gets commented out
• KT-15873 Alt+Enter menu isn't shown for deprecated mod function
• KT-15874 Replace operator with function call replaces % with deprecated mod
• KT-15884 False positive "Redundant .let call"
• KT-16072 Intentions to convert suspend lambdas to callable references should not be shown

Android support

• KT-13275 Kotlin Gradle plugin for Android does not work when jackOptions enabled
• KT-15150 Android: Add quick-fix to generate View constructor convention
• KT-15282 Issues debugging crossinline Android code

KDoc

• KT-14710 Sample references are not resolved in IDE
• KT-15796 Import of class referenced only in KDoc not preserved after copy-paste

Various issues

• KT-9011 Shift+Enter should insert curly braces when invoked after class declaration
• KT-11308 Hide kotlin.jvm.internal package contents from completion and auto-import
• KT-14252 Completion could suggest constructors available via type aliases
• KT-14722 Completion list isn't filled up for type alias to object
• KT-14767 Type alias to annotation class should appear in the completion list
• KT-14859 "Parameter Info" sometimes does not work properly inside lambda
• KT-15032 Injected fragment: descriptor was not found for declaration: FUN
• KT-15153 Support typeAlias extensions in completion and add import
• KT-15786 NoSuchMethodError: com.intellij.util.containers.UtilKt.isNullOrEmpty
• KT-15883 Generating equals() and hashCode(): hashCode does not correctly honor variable names with back ticks
• KT-15911 Kotlin REPL will not launch: "Neither main class nor JAR path is specified"

J2K

• KT-15789 Kotlin plugin incorrectly converts for-loops from Java to Kotlin

Gradle support

• KT-14830 Kotlin Gradle plugin configuration should not add 'kotlin' source directory by default
• KT-15279 'Kotlin not configured message' should not be displayed while gradle sync is in progress
• KT-15812 Create Kotlin facet on importing gradle project with unchecked option Create separate module per source set
• KT-15837 Gradle compiler attempts to connect to daemon on address derived from DNS lookup
• KT-15909 Copy Gradle compiler options to facets in Intellij/AS
• KT-15929 Gradle project imported with wrong 'target platform'

Other issues

• KT-15450 JSR 223 - support eval with bindings

1.1.0-Beta

Reflection

• KT-15540 findAnnotation returns T?, but it throws NoSuchElementException when there is no matching annotation
• Reflection API in kotlin-reflect library is moved to kotlin.reflect.full package, declarations in the package kotlin.reflect are left deprecated. Please migrate according to the hints provided.

Compiler

Coroutine support

• KT-15379 Allow invoke on instances of suspend function type inside suspend function
• KT-15380 Support suspend function type with value parameters
• KT-15391 Prohibit suspend function type in supertype list
• KT-15392 Prohibit local suspending function
• KT-15413 Override regular functions with suspending ones and vice versa
• KT-15657 Refine dispatchResume convention
• KT-15662 Prohibit callable references to suspend functions

Diagnostics

• KT-9630 Cannot create extension function on intersection of types
• KT-11398 Possible false positive for INACCESSIBLE_TYPE
• KT-13593 Do not report USELESS_ELVIS_RIGHT_IS_NULL for left argument with platform type
• KT-13859 Wrong error about using unrepeatable annotation when mix implicit and explicit targets
• KT-14179 Prohibit to use enum entry as type parameter
• KT-15097 Inherited platform declarations clash: regression under 1.1 when indirectly inheriting from java.util.Map
• KT-15287 Kotlin runtime 1.1 and runtime 1.0.x: Overload resolution ambiguity
• KT-15334 Incorrect "val cannot be reassigned" inside do-while
• KT-15410 "Protected function call from public-API inline function" for protected constructor call

Kapt3

• KT-15145 Kapt3: Doesn't compile with multiple errors
• KT-15232 Kapt3 crash due to java codepage
• KT-15359 Kapt3 exception while annotation processing (DataBindings AS2.3-beta1)
• KT-15375 Kapt3 can't find ${env.JDK_18}/lib/tools.jar
• KT-15381 Unresolved references: R with Kapt3
• KT-15397 Kapt3 doesn't work with databinding
• KT-15409 Kapt3 Cannot find the getter for attribute 'android:text' with value type java.lang.String on android.widget.EditText.
• KT-15421 Kapt3: Substitute types from Psi instead of writing NonExistentClass for generated type names
• KT-15459 Kapt3 doesn't generate code in test module
• KT-15524 Kapt3 - Error messages should display associated element information (if available)
• KT-15713 Kapt3: circular dependencies between Gradke tasks

Exceptions / Errors

• KT-11401 Error type encountered for implicit invoke with function literal argument
• KT-12044 Assertion "Rewrite at slice LEXICAL_SCOPE" for 'if' with property references
• KT-14011 Compiler crash when inlining: lateinit property allRecapturedParameters has not been initialized
• KT-14868 CCE in runtime while converting Number to Char
• KT-15364 VerifyError: Bad type on operand stack on ObserverIterator.hasNext
• KT-15373 Internal error when running TestNG test
• KT-15437 VerifyError: Bad local variable type on simplest provideDelegate
• KT-15446 Property reference on an instance of subclass causes java.lang.VerifyError
• KT-15447 Compiler backend error: "Don't know how to generate outer expression for class"
• KT-15449 Back-end (JVM) Internal error: Couldn't inline method call
• KT-15464 Regression: "Supertypes of the following classes cannot be resolved. Please make sure you have the required dependencies in the classpath:"
• KT-15575 VerifyError: Bad type on operand stack

Various issues

• KT-11962 Super call with default parameters check is generated for top-level function
• KT-11969 ProGuard issue with private interface methods
• KT-12795 Write information about sealed class inheritors to metadata
• KT-13718 ClassFormatError on aspectj instrumentation
• KT-14162 Support @InlineOnly on inline properties
• KT-14705 Inconsistent smart casts on when enum subject
• KT-14917 No way to pass additional java command line options to kontlinc on Windows
• KT-15112 Compiler hangs on nested lock compilation
• KT-15225 Scripts: generate classes with names that are valid Java identifiers
• KT-15411 Unnecessary CHECKCAST bytecode when dealing with null
• KT-15473 Invalid KFunction byte code signature for callable references
• KT-15582 Generated bytecode is sometimes incompatible with Java 9
• KT-15584 Do not mark class files compiled with a release language version as pre-release
• KT-15589 Upper bound for T in KClass can be implicitly violated using generic function
• KT-15631 Compiler hang in MethodAnalyzer.analyze() fixed

JavaScript backend

Coroutine support

• KT-15362 JS: Regex doesn't work (properly) in coroutine
• KT-15366 JS: error when calling inline function with optional parameters from another module inside coroutine lambda
• KT-15367 JS: for against iterator with suspend next and hasNext functions does not work
• KT-15400 suspendCoroutine is missing in JS BE
• KT-15597 Support non-tail suspend calls inside named suspend functions
• KT-15625 JS: return statement without value surrounded by try..finally in suspend lambda causes compiler error
• KT-15698 Move coroutine intrinsics to kotlin.coroutine.intrinsics package

Diagnostics

• KT-14577 JS: do not report declaration clash when common redeclaration diagnostic applies
• KT-15136 JS: prohibit inheritance from kotlin Function{N} interfaces

Language features support

• KT-12194 Exhaustiveness check isn't generated for when expressions in JS at all
• KT-15590 Support increment on inlined properties

Native / external

• KT-8081 JS: native inherited class shouldn't require super or primary constructor call
• KT-13892 JS: restrictions for native (external) functions and properties
• KT-15307 JS: prohibit inline members inside external declarations
• KT-15308 JS: prohibit non-abstract members inside external interfaces except nullable properties (with accessors)

Exceptions / Errors

• KT-7302 KotlinJS - Trait with optional parameter causes compilation error
• KT-15325 JS: ReferenceError: $receiver is not defined
• KT-15357 JS: when expression in primary-from-secondary constructor call
• KT-15435 Call to 'synchronize' crashes JS backend
• KT-15513 JS: empty do..while loop crashes compiler

Various issues

• KT-4160 JS: compiler produces wrong code for escaped variable names with characters which Illegal in JS (e.g. spaces)
• KT-7004 JS: functions named call not inlined
• KT-7588 JS: operators are not inlined
• KT-7733 JS: Provide overflow behavior for integer arithmetic operations
• KT-8413 JS: generated wrong code for some float constants
• KT-12598 JS: comparisons for Enums always translates using strong operator
• KT-13523 Augmented assignment with array access in LHS is translated incorrectly
• KT-13888 JS: change how functions optional parameters get translated
• KT-15260 JS: don't import module more than once
• KT-15475 JS compiler deletes internal function name in js("") text block
• KT-15506 JS: invalid evaluation order when passing arguments to function by name
• KT-15512 JS: wrong result when use break/throw/return in || and && operators
• KT-15569 js: Wrong code generated when calling an overloaded operator function on an inherited property

Standard Library

• KEEP-23 Operation to group by key and fold each group simultaneously
• KT-15774 buildSequence and buildIterator functions with yield and yieldAll based on coroutines
• KT-6903 Add also extension, which is like apply, but with it instead of this inside lambda.
• KT-7858 Add extension function takeIf to match a value against predicate and return null when it does not match
• KT-11851 Provide extension Map.getValue(key: K): V which throws or returns default when key is not found
• KT-7417 Add min, max on two numbers to standard library
• KT-13898 Allow to implement toArray in collections as protected and provide protected toArray in AbstractCollection.
• KT-14935 Array-like list instantiation functions: List(count) { init } and MutableList(count) { init }
• KT-15630 Overloads of mutableListOf, mutableSetOf, mutableMapOf without parameters
• KT-15557 Iterable.joinTo loses information about each element by calling toString on them by default
• KT-15477 Introduce Throwable.addSuppressed extension
• KT-15310 Add dynamic.unsafeCast
• KT-15436 JS stdlib: org.w3c.fetch.RequestInit has 12 parameters, all required
• KT-15458 Add print and println to common stdlib

IDE

• Project View: Fix presentation of Kotlin files and their members when @JvmName having the same name as the file itself

no-arg / all-open

• KT-15419 IDE build doesn't pick settings of all-open plugin
• KT-15686 IDE build doesn't pick settings of no-arg plugin
• KT-15735 Facet loses compiler plugin settings on reopening project, when "Use project settings" = Yes

Formatter

• KT-15542 Formatter doesn't handle spaces around 'by' keyword
• KT-15544 Formatter doesn't remove spaces around function reference operator

Intention actions, inspections and quick-fixes

New features

• Implement quickfix which enables/disables coroutine support in module or project
• KT-5045 Intention to convert between two comparisons and range check and vice versa
• KT-5629 Quick-fix to import extension method when arguments of non-extension method do not match
• KT-6217 Add warning for unused equals expression
• KT-6824 Quick-fix for applying spread operator where vararg is expected
• KT-8855 Implement "Create label" quick-fix
• KT-15056 Implement intention which converts object literal to class
• KT-15068 Implement intention which rename file according to the top-level class name
• KT-15564 Add quick-fix for changing primitive cast to primitive conversion method

Bug fixes

• KT-14630 Clearer diagnostic message for platform type inspection
• KT-14745 KNPE in convert primary constructor to secondary
• KT-14889 Replace 'if' with elvis operator produces red code if result is referenced in 'if'
• KT-14907 Quick-fix for missing operator adds infix modifier to created function
• KT-15092 Suppress inspection "use property access syntax" for some getters and fix completion for them
• KT-15227 "Replace if with elvis" silently changes semantics
• KT-15412 "Join declaration and assignment" can break code with smart casts
• KT-15501 Intention "Add names to call arguments" shouldn't appear when the only argument is a trailing lambda

Refactorings (Extract / Pull)

• KT-15611 Extract Interface/Superclass: Disable const-properties
• Pull Up: Fix pull-up from object to superclass
• KT-15602 Extract Interface/Superclass: Disable "Make abstract" for inline/external/lateinit members
• Extract Interface: Disable inline/external/lateinit members
• KT-12704, KT-15583 Override/Implement Members: Support all nullability annotations respected by the Kotlin compiler
• KT-15563 Override Members: Allow overriding virtual synthetic members (e.g. equals(), hashCode(), toString(), etc.) in data classes
• KT-15355 Extract Interface: Disable "Make abstract" and assume it to be true for abstract members of an interface
• KT-15353 Extract Superclass/Interface: Allow extracting class with special name (and quotes)
• KT-15643 Extract Interface/Pull Up: Disable "Make abstract" and assume it to be true for primary constructor parameter when moving to an interface
• KT-15607 Extract Interface/Pull Up: Disable internal/protected members when moving to an interface
• KT-15640 Extract Interface/Pull Up: Drop 'final' modifier when moving to an interface
• KT-15639 Extract Superclass/Interface/Pull Up: Add spaces between 'abstract' modifier and annotations
• KT-15606 Extract Interface/Pull Up: Warn about private members with usages in the original class
• KT-15635 Extract Superclass/Interface: Fix bogus visibility warning inside a member when it's being moved as abstract
• KT-15598 Extract Interface: Red-highlight members inherited from a super-interface when that interface reference itself is not extracted
• KT-15674 Extract Superclass: Drop inapplicable modifiers when converting property-parameter to ordinary parameter

Multi-platform project support

• KT-14908 Actions (quick-fixes) to create implementations of header elements
• KT-15305 Do not report UNUSED for header declarations with implementations and vice versa
• KT-15601 Cannot suppress HEADER_WITHOUT_IMPLEMENTATION
• KT-15641 Quick-fix "Create header interface implementation" does nothing

Android support

• KT-12884 Android Extensions: Refactor / Rename of activity name does not change import extension statement
• KT-14308 Android Studio randomly hangs due to Java static member import quick-fix lags
• KT-14358 Kotlin extensions: rename layout file: Throwable: "PSI and index do not match" through KotlinFullClassNameIndex.get()
• KT-15483 Kotlin lint throws unexpected exceptions in IDE

Various issues

• KT-12872 Don't show "defined in " in quick doc for local variables
• KT-13001 "Go to Type Declaration" is broken for stdlib types
• KT-13067 Syntax colouring doesn't work for KDoc tags
• KT-14815 alt + enter -> "import" over a constructor reference is not working
• KT-14819 Quick documentation for special Enum functions doesn't work
• KT-15141 Bogus import popup for when function call cannot be resolved fully
• KT-15154 IllegalStateException on attempt to convert import statement to * if last added import is to typealias
• KT-15329 Regex not inspected properly for javaJavaIdentifierStart and javaJavaIdentifierPart
• KT-15383 Kotlin Scripts can only resolve stdlib functions/classes if they are in a source directory
• KT-15440 Improve extensions detection in IDEA
• KT-15548 Kotlin plugin: @Language injections specified in another module are ignored
• Invoke StorageComponentContainerContributor extension for module dependencies container as well (needed for "sam-with-receiver" plugin to work with scripts)

J2K

• KT-6790 J2K: Static import of Map.Entry is lost during conversion
• KT-14736 J2K: Incorrect conversion of back ticks in javadoc {@code} tag
• KT-15027 J2K: Annotations are set on functions, but not on property accessors

Gradle support

• KT-15376 Kotlin incremental=true: fixed compatibility with AS 2.3
• KT-15433 Kotlin daemon swallows exceptions: fixed stack trace reporting
• KT-15682 Uncheck "Use project settings" option on import Kotlin project from gradle

1.1-M04 (EAP-4)

Language related changes

• KT-4481 compareTo on primitive floats/doubles should behave naturally
• KT-11016 Allow to annotate internal API to be used inside public inline functions
• KT-11128 Member vs SAM conversion with more specific signature
• KT-12215 Allowing to access protected members in public inline members creates potential binary compatibility problem
• KT-12531 Report error when delegated member hides a supertype member
• KT-14650 mod function on integral types is inconsistent with BigInteger.mod
• KT-14651 Floating point comparisons shall operate according to IEEE754
• KT-14852 It should not be possible to use typealias that abbreviates a generic projection as a constructor
• KT-15226 Restrict delegation to java 8 default methods

Reflection

• KT-12250 Provide API for getting a single annotation by its class
• KT-14939 VerifyError in accessors for bound property reference with receiver 'null'

Compiler

Coroutines

• Major coroutines redesign - see KEEP for details

Optimizations

• KT-11734 Optimize const vals by inlining them at call site
• KT-13570 Generate TABLE/LOOKUPSWITCH if all when branches are const integer values
• KT-14746 Captured Refs should not be volatile

Various issues

• KT-10982 java.util.Map::compute* poor usability
• KT-12144 Type inference incorporation error on SAM adapter call
• KT-14196 Do not allow class literal with expression in annotation arguments
• KT-14453 Regression: Type inference failed: inferred type is T but T was expected
• KT-14774 Incorrect inner class modifier generated for sealed inner classes
• KT-14839 CompilationException when calling inline fun with first arg of 2 (w/defaults) within catch block of Java exception type
• KT-14855 Projection in type aliases should be allowed in supertypes and constructor invocations if they expand to non-toplevel projections
• KT-14887 Unhelpful error "public-API inline function cannot access non-public-API" for unresolved call inside inline function
• KT-14930 Android: creating Kotlin activity: UOE at EmptyList.removeAll()
• KT-15146 Kapt3 no source files on unittest
• KT-15272 Exception when building 2 projects at the same time

JavaScript backend

dynamic type

• KT-8207 Extension function on dynamic resolves on any type
• KT-6579 JS: prohibit to use in and !in on dynamic
• KT-6580 JS: prohibit to use more than one argument in indexed access on dynamic
• KT-13615 JS: don't generate guard for catch with dynamic type

@native/external

• KT-13893 JS: Replace @native annotation with external modifier
• KT-12877 Allow to specify module for native JS declarations
• KT-14806 JS: name of a local variable clashes with native declaration from global scope

Diagnostics

• KT-13889 JS: prohibit overriding native functions with default values assigned to parameters
• KT-13894 JS: prohibit native declaration inside non-native
• KT-13895 JS: RUNTIME annotations
• KT-13896 JS: prohibit external(native) extension functions and properties
• KT-13897 JS: prohibit native(external) files and typealiases
• KT-13910 JS: prohibit override members of native declaration with overloads
• KT-14027 JS: prohibit native inner classes
• KT-14029 JS: prohibit private members inside native declarations
• KT-14037 JS: prohibit using native interfaces in RHS of IS
• KT-14038 JS: warn when using native interface in RHS of AS
• KT-15130 JS: prohibit inheritance native from non-native
• KT-12600 JS: type check with a native interface compiles but crash at runtime
• KT-13307 KotlinJS cannot cast to a marker interface.

Language features support

• KT-13573 JS: support bound callable reference
• KT-14634 JS: support enumValues / enumValueOf
• KT-15058 JS: replace suspend function convention

Issues related to kotlin.Any

• KT-7664 JS: "x is Any" is always false
• KT-7665 JS: creating Any instance crashes on runtime
• KT-15131 JS: don't mangle Any.equals

Various issues

• KT-14033 JS: don't optimize (based on type information) by default expressions with any of "as, is, !is, as?, ?., !!"
• KT-13616 JS: don't omit guard for catch with Throwable type
• KT-12976 JS: human-friendly error message on wrong modules order
• KT-15212 JS: link unqualified names in js(...) function to local functions in outer Kotlin function by name
• KT-14750 JS: remove unnecessary functions from kotlin.js

Bugfixes

• KT-12566 JS: inner local class should refer to captured variables via its outer class
• KT-12527 Reified is-check works wrongly for chained calls
• KT-12586 JS: compiler crashes when call inline function inside string templeate
• KT-13164 Ecma TypeError on extending local class from inner one
• KT-14888 JS: Compiler error: Cannot get FQ name of local class: lazy class
• KT-14748 JS: eliminate unused functions
• KT-14999 JS: Operator set + labeled lambdas
• KT-15007 JS: Dies when checking if exception implements interface. TypeError: Cannot read property 'baseClasses' of undefined
• KT-15073 KT to JS losing extension function's receiver
• KT-15169 JS: compiler fails on annotated expression with TRE at Translation.doTranslateExpression()
• KT-13522 JS: can't use captured reified type paramter in jsClass
• KT-13784 JS: lambda was not inlined for function with reified parameter declared in another module
• KT-13792 JS: inner class of local class does not capture enclosing class properly
• KT-15327 JS: Enum valueOf should throw IllegalArgumentException

Standard library

• KT-7930 Make String.toInt(), toLong(), etc. nullable instead of throwing exception
• KT-8220 Add #peek method to Sequence similar to Stream.peek
• KT-8286 Int.toString and String.toInt with base as parameter
• KT-14034 JS: unsafeCast function
• KT-15181 Some source files are missing from published sources on Bintray

IDE

• KT-15205 Implement quick-fix for increasing module language level to enable unsupported language features

Issues fixed

• KT-14693 Introduce Type Alias: Do not suggest type qualifiers
• KT-14696 Introduce Type Alias: Fix NPE during dialog repaint
• KT-14685 Introduce Type Alias: Replace type usages in constructor calls
• KT-14861 Introduce Type Alias: Support callable references/class literals
• KT-15204 Implement navigation from header to its implementation and vice versa
• KT-15269 Quickfix for external (native) extension declarations
• KT-15293 Add 1.1 EAP repository when creating a new Gradle project with 1.1 EAP

Scripting

• KT-14538 Kotlin gradle script files appear totally unresolved
• KT-14706 Support package declaration in scripting
• KT-14707 Support javax.script.Invocable on the JSR 223 ScriptEngine
• KT-14708 kotlin-script-runtime is not published
• KT-14713 Make it possible to use JSR 223 support without specifying compiler JAR absolute path
• KT-15064 Gradle build with script .kts file: NPE at ScriptCodegen.genConstructor()

Gradle support

• KT-15080 Gradle build fails with Gradle 3.2 (master)
• KT-15120 Gradle JS test compile task doesn't pick up production code
• KT-15127 JS "compiler jar not found" with Gradle 3.2
• KT-15133 Recent gradle-script-kotlin 3.3 distributions are unusable
• KT-15218 Isolate Gradle Kotlin compiler process

1.1-M03 (EAP-3)

New language features

• KT-2964 Underscores in integer literals (see KEEP)
• KT-3824 Underscore in lambda for unused parameters (see KEEP)
• KT-2783 Allow to skip some components in a multi-declaration (see the same KEEP)
• KT-11551 limited scope for dsl writers (see KEEP)

Compiler

Coroutines related issues

• Make fields for storing lambda parameters non-final (as they get assigned within invoke call)
• KT-14719 Make initial continuation able to be resumed with exception
• KT-14636 Coroutine fields should not be volatile
• KT-14718 Validate label value of coroutine in case of no suspension points

Typealises related issues

• KT-13514 Type inference doesn't work with generic typealiases
• KT-13837 Error "Type alias expands to T, which is not a class, an interface, or an object" should also appear for local type aliases
• KT-14307 Local recursive type alias should be an error
• KT-14400 Compiler Error IllegalStateException: kotlin.NotImplementedError when anonymous object inherits from typealias
• KT-14377 Expected error: Modifier 'companion' is not applicable to 'typealias'
• KT-14498 typealias allows to circumvent variance annotations
• KT-14641 An exception while processing a nested type alias access after a dot

Various issues

• KT-550 Properties without initializer but with get must infer type from getter
• KT-8816 Generate Kotlin parameter names in the same form as expected for Java 8 reflection
• KT-10569 Cannot iterate over values of an enum class when it is used as a generic parameter (see KEEP)
• KT-13557 VerifyError with delegated local variable used in object expression
• KT-13890 IllegalAccessError when invoking protected method with default arguments
• KT-14012 Back-end (JVM) Internal error every first compilation after the source code change
• KT-14201 UnsupportedOperationException: Don't know how to generate outer expression for anonymous object with invoke and non-trivial closure
• KT-14318 Repeated annotations resulting from type alias expansion should be reported
• KT-14347 Report UNUSED_PARAMETER/VARIABLE on named unused lambda parameters/destructuring entries
• KT-14352 @SinceKotlin is not taken into account for companion object member referenced via type alias
• KT-14357 Try-catch used in false condition generates CompilationException
• KT-14502 Prohibit irrelevant modifiers and annotations on destructured parameters in lambda
• KT-14692 Change resolution scope for componentX in lambda parameters
• KT-14824 Back-end (JVM) Internal error: Couldn't inline method call 'get' into local final fun StorageComponentContainer.(): kotlin.Unit
• KT-14798 Gradle 3.2 AssertionError: Built-in class kotlin.ParameterName is not found

JS

Feature support

• KT-6985 Support Exceptions in JS
• KT-13574 JS: support coroutines
• KT-14422 JS: Support destructuring in lambda parameters
• KT-14507 JS: allow to skip some components in a multi-declaration

Library updates

• KT-14637 JS: Missing ArrayList.ensureCapacity

Other issues

• KT-2328 js: kotlin exceptions must inherit Error
• KT-5537 Drop Cloneable in JS
• KT-7014 JS: generate code which more friendly to js tools (minifier, optimizer, linter etc)
• KT-8019 JS: no stackTrace in exception subclasses
• KT-10911 JS: Throwable properties aren't supported well
• KT-13912 JS: Compiler NPE at JsSourceGenerationVisitor. Lambda with empty [if] block passed to inline function
• KT-14535 JS: Broken modification of captured variables defined by a destructuring declaration

Standard Library

• KT-2084 Common API should be available without referring to java.* packages

  Now those common types, which are supported on all platforms, are available in kotlin.* packages, and are imported by default. These include:

  • ArrayList, HashSet, LinkedHashSet, HashMap, LinkedHashMap in kotlin.collections
  • Appendable and StringBuilder in kotlin.text
  • Comparator in kotlin.comparisons On JVM these are just typealiases of the good old types from java.util and java.lang

• KT-13554 Introduce bitwise operations and/or/xor/inv for Byte and Short

• KT-13582 New platform-agnostic extensions for arrays: contentEquals to compare arrays' content for equality, contentHashCode to get hashcode of array's content, and contentToString to get the string representation of array elements.

• KT-14510 Generic constraints of Array.flatten signature were relaxed a bit to make it just usable.

• KT-14789 Provide KotlinVersion class, which allows to get the current version of the standard library and compare it with some other KotlinVersion value.

IDE

• KT-14409 Incorrect "Variable can be declared immutable" inspection for local delegated variable
• KT-14431 Create quick-fix on UNUSED_PARAMETER/VARIABLE when it can be replaced with one underscore
• KT-14794 Add /Specify type/Remove explicit type intentions for property with getters if type can be inferred
• KT-14752 Exception while typing @JsName annotation in editor

1.1-M02 (EAP-2)

Language features

• Destructuring for lambdas (proposal)

  Current limitations:

  • Nested destructuring is not supported
  • Destructuring in named functions/constructors is not supported
  • Is not supported for JS target

Compiler

Smart cast enhancements

• KT-2127 Smart cast receiver to not null after a not null safe call
• KT-6840 Make data flow information the same for assigned and assignee
• KT-13426 Fix exception when smartcast on both dispatch & extension receiver

Bound references related issues

• KT-12995 Do not skip generation of the left-hand side for intrinsic bound references and class literals
• KT-13075 Fix codegen for bound class reference
• KT-13110 Fix type mismatch error on class literal with integer receiver expression
• KT-13172 Report error on "this::class" in super constructor call
• KT-13271 Fix incorrect unsupported error on synthetic extension call on LHS of ::
• KT-13367 Inline bound callable reference if it's used only as a lambda

Coroutines related issues

• KT-13156 Do not execute last Unit-typed coroutine statement twice
• KT-13246 Fix VerifyError with coroutines on Dalvik
• KT-13289 Fix VerifyError with coroutines: Bad type on operand stack
• KT-13409 Fix generic variable spilling with coroutines
• KT-13531 Fix ClassCastException when coercion to Unit interacts with generic await() and coroutines
• Prohibit Continuation<*> as a last parameter of suspend functions
• KT-13560 Prohibit non-Unit suspend functions

Typealises related issues

• KT-13200 Fix incorrect number of required type arguments reported on typealias
• KT-13181 Fix unresolved reference for a type alias from a different module
• KT-13161 Support java static methods calls with typealiases
• KT-13835 Do not lose nullability information while expanding type alias in projection position
• KT-13422 Prohibit usage of type alias to exception class as an object in 'throw' expression
• KT-13735 Fix NoSuchMethodError for generic typealias access
• KT-13513 Support SAM constructors for aliased java functional types
• KT-13822 Fix exception for start-projection of a type alias
• KT-14071 Prohibit using type alias as a qualifier for super
• KT-14282 Report error on unused type alias with -language-version 1.0
• KT-14274 Fix type alias resolution when it's used for supertype constructor call

JDK dependent built-in classes related issues

• KT-13209 Change first parameter's type of Map.getOrDefault to K instead of Any
• KT-13069 Do not emit invalid DefaultImpls delegation when interface extends MutableMap with JDK8

data classes and inheritance

• KT-11306 Allow data classes to implement equals/hashCode/toString from base classes

Various JVM code generation issues

• KT-13182 Fix compiler internal error at inline
• KT-13757 Prohibit referencing nested classes by name with $
• KT-12985 Do not create range instances for 'for' loop in CharSequence.indices
• KT-13931 Optimize generated code for IntRange#contains

Various analysis & diagnostic issues

• KT-435 Use parameter names in error messages when calling a function-valued expression
• KT-10001 Fix false unnecessary non-null assertion on a pair element
• KT-12811 Treat function declaration as final if it is a member of a final class
• KT-13961 Report REDECLARATION on private-in-file 'foo' vs public 'foo' in different file

JS

Feature support

• KT-13544 Support type aliases in JS
• KT-13345 Support class literals in JS

Library updates

• KT-18 Move exceptions from java.lang to kotlin package
• KT-12386 Rewrite JS collections in Kotlin, move them to kotlin.collections package
• KT-7809 Make Collection implementations conform to their declared interfaces
• KT-7473 Make AbstractCollection.equals check object type
• KT-13429 Make 'remove' on fresh iterator throw exception instead of removing last element
• KT-13459 Make JS implementation of ArrayList::add(index, element) check the index is in valid range
• KT-8724 Fix MutableIterator.remove() for HashMap
• KT-10786 Make Map.keys return view of map keys instead of snapshot
• KT-14194 Make HashMap.putAll implementation not to call getKey/getValue

Standard Library

Backward compatibility

• KT-14297 Add @SinceKotlin annotation to support compatibility with compilation against older standard library
• KT-14213 Ensure printStackTrace can be called with -language-version 1.0

Enhancements

• KEEP-53 Provide two distinct hierarchies of abstract collections: one for implementing read-only/immutable collections, and other for implementing mutable collections
• KEEP-13 Provide extension functions to copy maps
• KT-18 Introduce type aliases for common exceptions from java.lang in kotlin package
• KT-12762 Make kotlin.ranges.until return an empty range for "illegal" 'to' parameter
• KT-12894 Allow nullable receiver for use extension

Reflection

New features

• KT-8998 Introduce comprehensive API to work with KType instances
• KT-10447 Provide a way to check if a KClass is a data class
• KT-11284 Add KClass.cast extension
• KT-13106 Support annotation constructors in reflection

Optimizations

• KT-10651 Optimize KClass.simpleName

IDE

New features

• KT-12903 Implement "Inline type alias" refactoring
• KT-12902 Implement "Introduce type alias" refactoring
• KT-12904 Implement "Create type alias from usage" quick fix
• KT-9016 Make use of named higher order function parameters
• KT-12205 Suggest import of Kotlin static members in editor with Java source
• KT-13941 Implement intention for introducing destructured lambda parameters when it's possible
• KT-13943 Implement inspection and quickfix for to detect a manual destructuring of for / lambda parameter

Issues fixed

• KT-13004 Support bound method references in completion
• KT-13242 Suggest 'typealias' keyword in completion
• KT-13244 Override/Implement Members: Do not expand type aliases in the generated members
• KT-13611 Go to Class: Fix presentation of type aliases
• KT-13759 Rename: Process object-wrapping alias references
• KT-13955 Find Usages: Add special type for usages inside of type aliases
• KT-13479 Support navigation to type aliases from binaries
• KT-13766 Fix optimize imports not to add wrong and unnecessary import because of type alias
• KT-12949 Consider type aliases as candidates for import
• KT-13266 Suggest non-imported type aliases in completion
• KT-13689 Do not treat type alias constructor usage as original type usage for optimize imports

Scripting

• A new library kotlin-script-util containing utilities for implementing kotlin script support
• KT-7880 Experimental support for JSR 223 Scripting API
• KT-13975, KT-14264 Convert error on retrieving gradle plugin settings to warning
• Implement support for custom template-based scripts in command-line compiler, maven and gradle plugins

1.1-M01 (EAP-1)

Language features

• Coroutines (async/await, generators) (proposal)

  Current limitations:

  • for some cases type inference is not supported yet
  • limited IDE support
  • allowed only one handleResult function: design
  • handling finally blocks is not supported: issue

• Bound callable references (proposal)

• Type aliases (proposal)

  Current limitations:

  • type alias constructors for inner classes are not supported yet
  • annotations on type alias are not supported yet
  • limited IDE support

• Local delegated properties (proposal)

• JDK dependent built-in classes (proposal)

• Sealed class inheritors in the same file (proposal)

• Allow base classes for data classes (proposal)

Scripting

• Implement support for Script Definition Template and related functionality, except the following parts:
  • automatic script templates discovery is not implemented
  • @file:ScriptTemplate annotation is not supported
  • the parameters javaHome and scripts from KotlinScriptExternalDependencies are not used yet
• Implement support for custom template-based scripts in IDEA: resolving, completion and navigation to symbols from script classpath and sources
• Implement GradleScriptTemplatesProvider extension that supplies a script template if gradle with kotlin script support is used in the project

Compiler

Issues fixed

• KT-4779 Generate default methods for implementations in interfaces
• KT-11780 Fixed incorrect "No cast needed" warning
• KT-12156 Fixed incorrect error on inline modifier inside final class
• KT-12358 Report missing error "Abstract member not implemented" when a fake method of 'Any' is inherited from an interface
• KT-6206 Generate equals/hashCode/toString in data class always unless it'll cause a JVM signature clash error
• KT-8990 Fixed incorrect error "virtual member hidden" for a private method of an inner class
• KT-12429 Fixed visibility checks for annotation usage on top-level declarations
• KT-5068 Introduced a special diagnostic message for "type mismatch" errors such as fun f(): Int = { 1 }.

Standard Library

• KT-8254 Provide standard library supplement artifacts for using with JDK 7 and 8. These artifacts include extensions for the types available in the latter JDKs, such as AutoCloseable.use (KT-5899) or Stream.toList.
• KT-12753 Provide an access to named group matches of Regex match result (for JDK 8 only).
• Add assertFails overload with message to kotlin-test.

IDE

New features

• KT-12019 Introduce "redundant if" inspection

Issues fixed

• KT-12389 Do not exit from REPL when toString() of user class throws an exception
• KT-12129 Fixed link on api reference page in KDoc

1.0.7

IDE

• Project View: Fix presentation of Kotlin files and their members when @JvmName having the same name as the file itself
• KT-15611 Extract Interface/Superclass: Disable const-properties
• Pull Up: Fix pull-up from object to superclass
• KT-15602 Extract Interface/Superclass: Disable "Make abstract" for inline/external/lateinit members
• Extract Interface: Disable inline/external/lateinit members
• KT-12704, KT-15583 Override/Implement Members: Support all nullability annotations respected by the Kotlin compiler
• KT-15563 Override Members: Allow overriding virtual synthetic members (e.g. equals(), hashCode(), toString(), etc.) in data classes
• KT-15355 Extract Interface: Disable "Make abstract" and assume it to be true for abstract members of an interface
• KT-15353 Extract Superclass/Interface: Allow extracting class with special name (and quotes)
• KT-15643 Extract Interface/Pull Up: Disable "Make abstract" and assume it to be true for primary constructor parameter when moving to an interface
• KT-15607 Extract Interface/Pull Up: Disable internal/protected members when moving to an interface
• KT-15640 Extract Interface/Pull Up: Drop 'final' modifier when moving to an interface
• KT-15639 Extract Superclass/Interface/Pull Up: Add spaces between 'abstract' modifier and annotations
• KT-15606 Extract Interface/Pull Up: Warn about private members with usages in the original class
• KT-15635 Extract Superclass/Interface: Fix bogus visibility warning inside a member when it's being moved as abstract
• KT-15598 Extract Interface: Red-highlight members inherited from a super-interface when that interface reference itself is not extracted
• KT-15674 Extract Superclass: Drop inapplicable modifiers when converting property-parameter to ordinary parameter
• KT-15444 Spring Support: Consider declaration open if it's supplemented with a preconfigured annotation in corresponding compiler plugin

Intention actions, inspections and quickfixes

New features

• KT-15068 Implement intention which rename file according to the top-level class name
• Implement quickfix which enables/disables coroutine support in module or project
• KT-15056 Implement intention which converts object literal to class
• KT-8855 Implement "Create label" quick fix
• KT-15627 Support "Change parameter type" for parameters with type-mismatched default value

1.0.6

IDE

• KT-13811 Expose JVM target setting in IntelliJ IDEA plugin compiler configuration UI
• KT-12410 Expose language version setting in IntelliJ IDEA plugin compiler configuration UI

Intention actions, inspections and quickfixes

• KT-14569 Convert Property to Function Intention: Search occurrences using progress dialog
• KT-14501 Create from Usage: Support array access expressions/binary expressions with type mismatch errors
• KT-14500 Create from Usage: Suggest functional type based on the call with lambda argument and unresolved invoke()
• KT-14459 Initialize with Constructor Parameter: Fix IDE freeze on properties in generic class
• KT-14044 Fix exception on deleting unused declaration in IDEA 2016.3
• KT-14019 Create from Usage: Support generation of abstract members for superclasses
• KT-14246 Intentions: Convert function type parameter to receiver
• KT-14246 Intentions: Convert function type receiver to parameter

New features

• KT-14729 Implement "Add names to call arguments" intention
• KT-11760 Create from Usage: Support adding type parameters to the referenced type

Refactorings

• KT-14583 Change Signature: Use new signature when looking for redeclaration conflicts
• KT-14854 Extract Interface: Fix NPE on dialog opening
• KT-14814 Rename: Fix renaming of .kts file to .kt and vice versa
• KT-14361 Rename: Do not report redeclaration conflict for private top-level declarations located in different files
• KT-14596 Safe Delete: Fix exception on deleting Java class used in Kotlin import directive(s)
• KT-14325 Rename: Fix exceptions on moving file with facade class to another package
• KT-14197 Move: Fix callable reference processing when moving to another package
• KT-13781 Extract Function: Do not wrap companion member references inside of the with call

New features

• KT-14792 Rename: Suggest respective parameter name for the local variable passed to function

1.0.5

IDE

• KT-9125 Support Type Hierarchy on references inside of super type call entries
• KT-13542 Rename: Do not search parameter text occurrences outside of its containing declaration
• KT-8672 Rename: Optimize search of parameter references in calls with named arguments
• KT-9285 Rename: Optimize search of private class members
• KT-13589 Use TODO() consistently in implementation stubs
• KT-13630 Do not show Change Signature dialog when applying "Remove parameter" quick-fix
• Re-highlight only single function after local modifications
• KT-13474 Fix performance of typing super call lambda
• Show "Variables and values captured in a closure" highlighting only for usages
• KT-13838 Add file name to the presentation of private top-level declaration (Go to symbol, etc.)
• KT-14096 Rename: When renaming Kotlin file outside of source root do not rename its namesake in a source root
• KT-13928 Move Inner Class to Upper Level: Fix replacement of outer class instances used in inner class constructor calls
• KT-12556 Allow using whitespaces and other symbols in "Generate -> Test Function" dialog
• KT-14122 Generate 'toString()': Permit for data classes
• KT-12398 Call Hierarchy: Show Kotlin usages of Java methods
• KT-13976 Search Everywhere: Render function parameter types
• KT-13977 Search Everywhere: Render extension type in prefix position
• Implement Kotlin facet

Intention actions, inspections and quickfixes

• KT-9490 Convert receiver to parameter: use template instead of the dialog
• KT-11483 Move to Companion: Do not use qualified names as labels
• KT-13874 Move to Companion: Fix AssertionError on running refactoring from Conflicts View
• KT-13883 Move to Companion Object: Fix exception when applied to class
• KT-13876 Move to Companion Object: Forbid for functions/properties referencing type parameters of the containing class
• KT-13877 Move to Companion Object: Warn if companion object already contains function with the same signature
• KT-13933 Convert Parameter to Receiver: Do not qualify companion members with labeled 'this'
• KT-13942 Redundant 'toString()' in String Template: Disable for qualified expressions with 'super' receiver
• KT-13878 Remove Redundant Receiver Parameter: Fix exception receiver removal
• KT-14143 Create from Usages: Do not suggest on type-mismatched expressions which are not call arguments
• KT-13882 Convert Receiver to Parameter: Fix AssertionError
• KT-14199 Add Library: Fix exception due to resolution being run in the "dumb mode"
• Convert Receiver to Parameter: Fix this replacement

New features

• KT-11525 Implement "Create type parameter" quickfix
• KT-9931 Implement "Remove unused assignment" quickfix
• KT-14245 Implement "Convert enum to sealed class" intention
• KT-14245 Implement "Convert sealed class to enum" intention

Refactorings

• KT-13535 Pull Up: Remove visibility modifiers on adding 'override'
• KT-13216 Move: Report separate conflicts for each property accessor
• KT-13216 Move: Forbid moving of enum entries
• KT-13553 Move: Do not show directory selection dialog if target directory is already specified by drag-and-drop
• KT-8867 Rename: Rename all overridden members if user chooses to refactor base declaration(s)
• Pull Up: Drop 'override' modifier if moved member doesn't override anything
• KT-13660 Move: Do not drop object receivers when calling variable of extension functional type
• KT-13903 Move: Remove companion object which becomes empty after the move
• KT-13916 Move: Report visibility conflicts in import directives
• KT-13906 Move Nested Class to Upper Level: Do not show directory selection dialog twice
• KT-13901 Move: Do not ignore target directory selected in the dialog (DnD mode)
• KT-13904 Move Nested Class to Upper Level: Preserve state of "Search in comments"/"Search for text occurrences" checkboxes
• KT-13909 Move Files/Directories: Fix behavior of "Open moved files in editor" checkbox
• KT-14004 Introduce Variable: Fix exception on trying to extract variable of functional type
• KT-13726 Move: Fix bogus conflicts due to references resolving to wrong library version
• KT-14114 Move: Fix exception on moving Kotlin file without declarations
• KT-14157 Rename: Rename do-while loop variables in the loop condition
• KT-14128, KT-13862 Rename: Use qualified class name when looking for occurrences in non-code files
• KT-6199 Rename: Replace non-code class occurrences with new qualified name
• KT-14182 Move: Show error message on applying to enum entries
• Extract Function: Support implicit abnormal exits via Nothing-typed expressions
• KT-14285 Rename: Forbid on backing field reference
• KT-14240 Introduce Variable: Do not replace assignment left-hand sides
• KT-14234 Rename: Do not suggest type-based names for functions with primitive return types

New features

• KT-13155 Implement "Introduce Type Parameter" refactoring
• KT-11017 Implement "Extract Superclass" refactoring
• KT-11017 Implement "Extract Interface" refactoring Pull Up: Support properties declared in the primary constructor Pull Up: Support members declared in the companion object of the original class Pull Up: Show member dependencies in the refactoring dialog
• KT-9485 Push Down: Support moving members from Java to Kotlin class
• KT-13963 Rename: Implement popup chooser for overriding members

Android Lint

Issues fixed

• KT-12022 Report lint warnings even when file contains errors

1.0.4

Compiler

Analysis & diagnostics

• KT-10968, KT-11075, KT-12286 Type inference of callable references
• KT-11892 Report error on qualified super call to a supertype extended by a different supertype
• KT-12875 Report error on incorrect call of member extension invoke
• KT-12847 Report error on accessing protected property setter from super class' companion
• KT-12322 Overload resolution ambiguity with constructor reference when class has a companion object
• KT-11440 Overload resolution ambiguity on specialized Map.put implementation from Java
• KT-11389 Runtime exception when calling Java primitive overloadings
• KT-8200 Exception when using non-generic interface with generic arguments
• KT-10237 Exception on an unresolved symbol in a type parameter bound in the 'where' clause
• KT-11821 Exception on incorrect number of generic arguments in a type parameter bound in the 'where' clause
• KT-12482 Exception: Implementation doesn't have the most specific type, but none of the other overridden methods does either
• KT-12687 Exception when 'data' modifier is applied to object
• KT-9620 AssertionError in DescriptorResolver#checkBounds
• KT-3689 IllegalAccess on a property with private setter of the subclass
• KT-6391 Wrong warning for array casting (Array<Any?> to Array)
• KT-8596 Exception when analyzing nested class constructor reference in an argument position
• KT-12982 Incorrect type inference when accessing mutable protected property via reflection
• KT-13206 Report "Cast never succeeds" if and only if ClassCastException can be predicted
• KT-12467 IllegalStateException: Concrete fake override should have exactly one concrete super-declaration: []
• KT-13340 Report "return is not allowed here" only on the return keyword, not the whole expression
• KT-2349, KT-6054 Report "uninitialized enum entry" if enum entry is referenced before its declaration
• KT-12809 Report "uninitialized variable" if property is referenced before its declaration
• KT-260 Do not report "cast never succeeds" when casting nullable to nullable
• KT-11769 Prohibit access from enum instance initialization code to members of enum's companion object
• KT-13371 Fix CompilationException: Rewrite at slice LEAKING_THIS key: REFERENCE_EXPRESSION
• KT-13401 Fix StackOverflowError when checking variance
• KT-13330, KT-13349 Fix AssertionError: Illegal resolved call to variable with invoke
• KT-13421 Fix AssertionError: Only integer constants should be checked for overflow
• KT-13555 Fix internal error "resolveToInstruction"
• KT-8989 Change error messages: Replace "invisible_fake" with "invisible (private in a supertype)"
• KT-13612 Val reassignment in try / catch
• KT-5469 Incorrect "is never used" warning for value used in catch block
• KT-13510 Missing "Nested class not allowed" error for anonymous object inside val initializer
• KT-13685 Fix NPE when resolving callable references on incomplete code
• Change error messages: Fix quotes around keywords in diagnostic messages
• Change error messages: Remove quotes around visibilities

Parser

• KT-7118 Improve error message after trailing dot in floating point literal
• KT-4948 Recover by following keyword
• KT-7915 Recover after val with no subsequent name
• KT-12987 Recover after val with no name before declaration starting with soft keyword

JVM code generation

• KT-12909 Do not generate redundant bridge for special built-in override
• KT-11915 Exception in entrySet when Map implementation in Kotlin extends another one
• KT-12755 Exception on property generation in multi-file classes
• KT-12983 VerifyError: Bad type on operand stack in arraylength
• KT-12908 Variable initialization in loop causes VerifyError: Bad local variable type
• KT-13040 Invalid bytecode generated for extension lambda invocation with safe call
• KT-13023 Char operations throw ClassCastException for boxed Chars
• KT-11634 Exception for super call in delegation
• KT-12359 Redundant stubs are generated on inheriting from java.util.Collection
• KT-11833 Error generating constructors of class on anonymous object inheriting from nested class of super class
• KT-13133 Incorrect InnerClasses attribute value for anonymous object copied from an inline function
• KT-13241 Indices optimization leads to VerifyError with smart cast receiver
• KT-13374 Fix compiler exception when inline function contains anonymous object implementing an interface by delegation

Generated code performance

• KT-11964 No TABLESWITCH in when on enum bytecode if enum constant is imported
• KT-6916 Optimize 'for' over 'downTo'
• KT-12733 Optimize 'for' over 'rangeTo' as a non-qualified call

Standard Library

• KT-13115, KT-13297 Improve documentation formatting, clarify documentation for FileTreeWalk, Sequence and generateSequence.
• KT-12894 Do not fail in Closeable.use if the resource is null.

Reflection

• KT-12915 Runtime exception on callBy of JvmStatic function with default arguments
• KT-12967 Runtime exception on reference to generic property
• KT-13370 NullPointerException on companionObjectInstance of a built-in class
• KT-13462 Make KClass for primitive type equal to the corresponding KClass for wrapper type

IDE

• KT-12655 New Kotlin file: extra error message for already existing file
• KT-12760 Prohibit running non-Unit returning main function
• KT-12893 Impossible to open Kotlin compiler settings
• KT-10433 Copy-pasting reference to companion object member causes import dialog
• KT-12803 Class is marked as unused when it is only used is in method reference
• KT-13084 Run test method action executes all tests from same kotlin file
• KT-12718 Deadlock due to index reentering
• KT-13114 'Unused declaration' option 'JUnit static methods' is always enabled
• KT-12997 Override/Implement Members: Support "Copy JavaDoc" options for library classes
• KT-12887 "Extend selection" should select call's invoked expression
• KT-13383, KT-13379 Override/Implement Members: Do not make return type non-nullable if base return type is explicitly nullable
• KT-13218 Extract Function: Fix AssertionError on callable references
• KT-6520 Introduce 'maino' and 'psvmo' templates for generating main in object
• KT-13455 Override/Implement: Make return type non-nullable (platform collection case) when overriding Java method
• KT-10209 Find Usages: Do not duplicate containing declaration in super member warning dialog
• KT-12977 Hybrid dependency causes "outdated binary" warning to appear in non-js project
• KT-13057 Go to inheritors on Enum should navigate to all enum classes
• Fix exception when choose Gradle configurer after project is synced
• Allow configuring Kotlin in Gradle module without Kotlin sources
• Show all Kotlin annotations when browsing hierarchy of "java.lang.Annotation"

Completion

• KT-12793 Suggest abstract protected extension methods

Performance

• KT-12645 Lazily calculate FQ name for local classes
• KT-13071 Fix severe freezes because of long lint checks on large files

Highlighting

• KT-12937 Java synthetic accessors highlighting does not differ from local variables

KDoc

• KT-12998 Backslash is not rendered
• KT-12999 Backtick inside inline code block is not rendered
• KT-13000 Exclamation mark is not rendered
• KT-10398 Fully qualified link is not resolved in editor
• KT-12932 Link to library element is not clickable
• KT-10654 Quick Doc can't follow KDoc link in referenced function description
• KT-9271 Show Quick Doc for implicit lambda parameter 'it'

Formatter

• KT-12830 Remove spaces before ? in nullable types
• KT-13314 Format spaces around !is and !in

Intention actions, inspections and quickfixes

New features

• KT-12152 "Leaking this" inspection reports dangerous operations inside constructors including:

  • Accessing non-final property in constructor
  • Calling non-final function in constructor
  • Using 'this' as function argument in constructor of non-final class

• KT-13187 "Make constructor parameter a val" should make the val private or public depending on its option

• KT-5771 Mark setter parameter type as redundant and provide quickfix to remove it

• KT-9228 Add quickfix to remove '@' from annotation used as argument of another annotation

• KT-12251 Add quickfix to fix type mismatch for primitive literals

• KT-12838 Add quickfix for "Illegal usage of inline parameter" that adds noinline

• KT-13134 Add quickfix for wrong Long suffix (Use L instead of l)

• KT-10903 Add intention to convert lambda to function reference

• KT-7492 Support "Create abstract function/property" inside an abstract class

• KT-10668 Support "Create member/extension" corresponding to the extension receiver of enclosing function

• KT-12553 Show versions in inspection about different version of Kotlin plugin in Maven and IDE plugin

• KT-12489 Implement intention to replace camel-case test function name with a space-separated one

• KT-12730 Warn about using different versions of Kotlin Gradle plugin and bundled compiler

• KT-13173 Handle more cases in "Add Const Modifier" Intention

• KT-12628 Quickfix for invoke operator unsafe calls

• KT-11425 Inspection and quickfix to replace usages of equals() and compareTo() with operators

• KT-13113 Inspection to detect redundant string templates

• KT-13011 Inspection and quickfix for unnecessary lateinit

• KT-10731 Inspection and quickfix for unnecessary use of toString() inside string interpolation

• KT-12043 Intention to add / remove braces for when entry/entries

• KT-13483 Intention to replace a..b-1 with a until b and vice versa

• KT-6975 Quickfix for adding 'inline' to a function with reified generic

Bugfixes

• Show receiver type in the text of "Create extension" quick fix
• Show target class name in the text of "Create member" quick fix
• KT-12869 Usages of overridden Java method through synthetic accessors are not found
• KT-12813 "Find Usages" for property returns function calls
• KT-7722 Approximate unresolvable types in "Create from Usage" quickfixes
• KT-11115 Implement Members: Fix base member detection when abstract and non-abstract members with matching signatures are inherited from an interface
• KT-12876 Bogus suggestion to move property to constructor
• KT-13055 Exception in "Specify Type Explicitly" intention
• KT-12942 "Replace 'when' with 'if'" intention changes semantics when 'if' statements are used
• KT-12646 'Convert to block body' should use partial body resolve
• KT-12919 Use simple class name in "Change function return type" quickfix
• KT-13151 Incorrect warning "Make variable immutable"
• KT-13170 "Declaration has platform type" inspection: by default should not be reported for platform type arguments
• KT-13262 "Wrap with safe let call" quickfix produces wrong result for qualified function
• KT-13364 Do not suggest creating annotations/enum classes for unresolved type parameter bounds
• KT-12627 Allow warnings suppression for secondary constructor
• KT-13365 Disable "Create property" (non-abstract) in interfaces. Make "Create function" (non-abstract) generate function body in interfaces
• KT-8903 Remove Unused Receiver: update function/property usages
• KT-11799 Create from Usage: Make extension functions/properties 'private' by default
• KT-11795 Create from Usage: Place extension properties after the usage and generate stub getter
• KT-12951 Prohibit "Convert to expression body" when function body is 'if' without 'else' or 'when' is non-exhaustive
• KT-13430 "Add non-null asserted (!!) call" quickfix can't process unary operators
• KT-13336 "Convert concatenation to template" intention appends literal to variable omitting braces
• KT-13328 Do not suggest "Replace infix with safe call" inside conditions or binary / unary expressions
• KT-13452 "Replace if expression with assignment" doesn't work for cascade if-else if-else
• KT-13184 "Different Kotlin Version" inspection: false positive caused by verbose plugin version name
• KT-13480 "Can be replaced with comparison" inspection: false positive if extension method called 'equals' is used
• KT-13288 "Unused property" inspection: false positive when extending abstract class and implementing interface
• KT-13432 "Replace with safe call" quickfix does not work with compareTo() usage
• KT-13444 "Invert if" intention changes semantics for nested if with return
• KT-13536 Fix StackOverflowError from "Unused Symbol" inspection after importing enum's values()
• KT-12820 Platform Type Inspection: !! quickfix shouldn't be available when any generic parameter has platform type
• KT-9825 Incorrect "unused variable" warning when used in finally block
• KT-13715 Prohibit applying "Change to star projection" to functional types

Refactorings

New features

• KT-12017 Inline Property: Support "Do not show this dialog" and "Inline this occurrence" options

Bugfixes

• KT-11176 Add a space before '{' in functions generated "Generate hashCode/equals/toString"
• KT-12294 Introduce Property: Fix extraction of expressions referring to primary constructor parameters
• KT-12413 Change Signature: Fix bogus warning about unresolved type parameters/invalid functional type replacement
• KT-12084 Introduce Property: Do not skip outer classes if extractable expression is contained in object literal
• KT-13082 Rename: Fix exception on property rename preview
• KT-13207 Safe delete: Fix exception when removing any function in 2016.2
• KT-12945 Rename: Fix function description in super method warning dialog
• KT-12922 Introduce Variable: Do not suggest expressions without type
• KT-12943 Rename: Show function signatures in "Rename Overloads" dialog
• KT-13157 Extract Function: Automatically quote function name if necessary
• KT-13010 Extract Function: Fix generation of destructuring declarations
• KT-13128 Introduce Variable: Retain entered name after changing "Specify type explicitly" option
• KT-13054 Introduce Variable: Skip leading/trailing comments inside selection
• KT-13385 Move: Quote package name (if necessary) when moving declarations to new file
• KT-13395 Introduce Property: Fix duplicate count in popup window
• KT-13277 Change Signature: Fix usage processing to prevent interfering with Python support plugin
• KT-13254 Rename: Conflict detection for type parameters
• KT-13282, KT-13283 Rename: Fix name quoting for automatic renamers
• KT-13239 Rename: Warn about function name conflicts
• KT-13174 Move: Warn about accessibility conflicts due to moving to unrelated module
• KT-13175 Move: Warn about accessibility conflicts when moving entire file
• KT-13240 Rename: Do not report shadowing conflict if redeclaration is detected
• KT-13253 Rename: Report conflicts for constructor parameters
• KT-12971 Push Down: Do not specifiy visibility on generated overriding members
• KT-13124 Pull Up: Skip super members without explicit declarations
• KT-13032 Rename: Support accessors with non-conventional names
• KT-13463 Rename: Quote parameter name when necessary
• KT-13476 Rename: Fix parameter rename when new name matches call selector
• KT-9381 Rename: Do not search for component convention usages
• KT-13488 Rename: Support rename of packages with non-standard quoted names

Debugger

New features

• KT-7549 Provide an option to use the Kotlin syntax when evaluating watches and expressions in Java files

Bugfixes

• KT-13059 Fix error stepping on Step Over action in the end of while block
• KT-13037 Fix possible deadlock in debugger in 2016.1 and exception in 2016.2
• KT-12651 Fix exception in evaluate expression when bad identifier is used for marking object
• KT-12896 Fix "Step In" to inline functions for Android
• KT-13269 Make quick evaluate work on receiver in qualified expressions
• KT-12641 Unknown error on evaluate expression containing inline functions with complicated environment
• KT-13163 Fix exception when evaluating expression: Access is allowed from event dispatch thread only.

JS

New features

• KT-3008 Option to generate require.js and AMD compatible modules
• KT-5987 Add ability to refer to class
• KT-4115 Provide method to get Kotlin type name

Bugfixes

• KT-8003 Compiler exception on 'throw throw'
• KT-8318 Wrong result for 'when' containing only 'else' block
• KT-12157 Compiler exception on when condition containing return, break or continue
• KT-12275 Fix code generation with inline function call in condition of while/do..while
• KT-13160 Fix compiler exception when left-hand side of assignment is array access and right-hand side is inline function
• KT-12864 Make enums comparable
• KT-12865 Implementing Comparable breaks inheritance
• KT-12928 Nested inline causes undefined reference access
• KT-12929 Code with callable reference crashed at runtime (in some JS VMs)
• KT-13043 Invalid invocation generated for secondary constructor that calls constructor from base class with default parameters
• KT-13025 'function?.invoke' does not work properly with extension functions
• KT-12807 Lambda was lost in generated code
• KT-12808 Compiler duplicates arguments and the body of lambda when lambda is in RHS of assignment operator
• KT-12873 Fix ReferenceError when class delegates to complex expression
• KT-13658 Wrong code when capturing object

Tools

Gradle

• Gradle versions < 2.0 are not supported
• KT-13234 Setting kotlinOptions.destination and kotlinOptions.classpath is deprecated
• KT-9392 Kotlin classes are missing after converting Java class to Kotlin
• KT-12736 Kotlin classes are deleted when generated Java source is changed
• KT-12658 Build fails after android resources are edited
• KT-12750 Non clean compilation fails with gradle 2.14
• KT-12912 New class from subproject is unresolved with subsequent build with Gradle Daemon
• KT-12962 Incremental compilation: Track changes in generated files
• KT-12923 Incremental compilation: Compile error when code using internal class is modified
• KT-13528 Incremental compilation: support multi-project incremental compilation
• KT-13732 Android Build folder littered with copyFlavourTypeXXX

KAPT

New features

• KT-13499 Implement Annotation Processing API (JSR 269) natively in Kotlin

Bugfixes

• KT-12776 Android build fails with KAPT and generateStubs depending on library module names
• KT-13179 Java is recompiled every time with Gradle 2.14 and KAPT
• KT-12303, KT-12113 Do not pass non-relevant annotations to processors

REPL

• KT-12389 REPL just quits when toString() of user class throws an exception

CLI & Ant

• KT-13237 Include kotlin-reflect.jar to classpath by default, add '-no-reflect' key to suppress this behavior

CLI

• KT-13491 Support '-no-reflect' in 'kotlin' command

Maven

• KT-13211 Provide better compilation failure info for TeamCity builds

Compiler daemon

• Fix exception "java.lang.NoClassDefFoundError: Could not initialize class kotlin.Unit"

1.0.3

Compiler

Analysis & diagnostics

• Combination of open and override is no longer a warning
• KT-4829 Equal conditions in when is now a warning
• KT-6611 "This cast can never succeed" warning is no longer reported for Foo<T> as Foo<Any>
• KT-7174 Declaring members with the same signature as non-overridable methods from Java classes (like Object.wait/notify) is now an error (when targeting JVM)
• KT-12302 abstract modifier for a member of interface is no longer a warning
• KT-12452 open modifier for a member of interface without implementation is now a warning
• KT-11111 Overriding by inline function is now a warning, overriding by a function with reified type parameter is an error
• KT-12337 Reference to a property with invisible setter now has KProperty type (as opposed to KMutableProperty)

Issues fixed

• KT-4285 No warning for a non-tail call when the method inherits default arguments from superclass
• KT-4764 Spurious "Variable must be initialized" in try/catch/finally
• KT-6665 Unresolved reference leads to marking subsequent code unreachable
• KT-11750 Exceptions when creating various entries with the name "name" in enums
• KT-11998 Smart cast to not-null is not performed on a boolean property in if condition
• KT-10648 Exhaustiveness check does not work when sealed class hierarchy contains intermediate sealed classes
• KT-10717 Type inference for lambda with local return
• KT-11266 Fixed "Empty intersection of types" internal compiler error for some cases
• KT-11857 Fix visibility check for dynamic members within protected method (when targeting JS)
• KT-12589 Improved "infix modifier is inapplicable" diagnostic message
• KT-11679 Erroneous call with argument causes Throwable at ResolvedCallImpl.getArgumentMapping()
• KT-12623 Fix ISE on malformed code

JVM code generation

• KT-5075 Optimize array/collection indices usage in for loop
• KT-11116 Optimize coercion to Unit, POP operations are backward-propagated

Issues fixed

• KT-11499 Compiler crashes with "Incompatible stack heights"
• KT-11943 CompilationException with extension property of KClass
• KT-12125 Wrong increment/decrement on Byte/Char/Short.MAX_VALUE/MIN_VALUE
• KT-12192 Exhaustiveness check isn't generated for when expression returning Unit
• KT-12200 Erroneously optimized away assignment to a property initialized to zero
• KT-12582 "VerifyError: Bad local variable type" caused by explicit loop variable type
• KT-12708 Bridge method not generated when data class implements interface with copy() method
• KT-12106 import static of reified companion object method throws IllegalAccessError

Performance

• Reduced number of IO operation when loading kotlin compiled classes

Сompiler options

• Allow to specify version of Kotlin language for source compatibility with older releases.
  • CLI: -language-version command line option
  • Maven: languageVersion configuration parameter, linked with kotlin.compiler.languageVersion property
  • Gradle: kotlinOptions.languageVersion property in task configuration
• Allow to specify which java runtime target version to generate bytecode for.
  • CLI: -jvm-target command line option
  • Maven: jvmTarget configuration parameter, linked with kotlin.compiler.jvmTarget property
  • Gradle: kotlinOptions.jvmTarget property in task configuration
• Allow to specify path to JDK to resolve classes from.
  • CLI: -jdk-home command line option
  • Maven: jdkHome configuration parameter, linked with kotlin.compiler.jdkHome property
  • Gradle: kotlinOptions.jdkHome property in task configuration

Standard Library

• Improve documentation (including KT-11632)
• List iteration used in collection operations is performed with an indexed loop when the list supports RandomAccess and the operation isn't inlined

IDE

Completion

New features

• Smart completion after by and in
• Improved completion in bodies of overridden members (when no type is specified)
• Improved presentation of completion items for property accessors
• Fixed keyword completion after try in assignment expression
• KT-8527 Include non-imported declarations on the first completion
• KT-12068 Special completion item for "[]" get-operator access
• KT-12080 Parameter names are now higher up in completion list

Issues fixed

• Fixed enum members being present in completion as static members
• Fixed QuickDoc not working for properties generated for java classes
• KT-9166 Code completion does not work for synthetic java properties on typing "g"
• KT-11609 No named arguments completion should be after dot
• KT-11633 Wrong indentation after completing a statement in data class
• KT-11680 Code completion of label for existing return with value inserts redundant whitespace
• KT-11784 Completion for if statement should add parentheses automatically
• KT-11890 Completion for callable references does not propose static Java members
• KT-11912 String interpolation is not converted to ${} form when accessing this.property
• KT-11957 No catch and finally keywords in completion
• KT-12103 Smart completion for nested SAM-adapter produces short unresolved name
• KT-12138 Do not show "::error" in smart completion when any function type accepting one argument is expected
• KT-12150 Smart completion suggests to compare non-nullable with null
• KT-12124 No code completion for a java property in a specific position
• KT-12299 Completion: incorrect priority of property foo over method getFoo in Kotlin-only code
• KT-12328 Qualified function name inserted when typing before if
• KT-12427 Completion doesn't work for "@receiver:" annotation target
• KT-12447 Don't use CompletionProgressIndicator in Kotlin plugin
• KT-12669 Completion should show variant with () when there is default lambda
• KT-12369 Pressing dot after class name should not cause insertion of constructor call

Spring support

New features

• KT-11692 Support Spring model diagrams for Kotlin classes
• KT-12079 Support "Autowired members defined in invalid Spring bean" inspection on Kotlin declarations
• KT-12092 Implement bean references in @Qualifier annotations
• KT-12135 Automatically configure components based on basePackageClasses attribute of @ComponentScan
• KT-12136 Implement package references inside of string literals
• KT-12139 Support Spring configurations linked via @Import annotation
• KT-12278 Implement Spring @Autowired inspection
• KT-12465 Implement Spring @ComponentScan inspection

Issues fixed

• KT-12091 Fixed unstable behavior of Spring line markers
• KT-12096 Fixed rename of custom-named beans specified with Kotlin annotation
• KT-12117 Group Kotlin classes from the same file in the Choose Bean dialog
• KT-12120 Show autowiring candidates line markers for @Autowired-annotated constructors and constructor parameters
• KT-12122 Fixed line marker popup on functions with @Qualifier-annotated parameters
• KT-12143 Fixed "Spring Facet Code Configuration (Kotlin)" inspection description
• KT-12147 Fixed exception on analyzing object declaration with @Component annotation
• KT-12148 Warn about object declarations annotated with Spring @Configuration/@Component/etc.
• KT-12363 Fixed "Autowired members defined in invalid Spring bean (Kotlin)" inspection description
• KT-12366 Fixed exception on analyzing class declaration upon annotation typing
• KT-12384 Fixed bean references in factory method calls

Intention actions, inspections and quickfixes

New features

• New icon for "New -> Kotlin Activity" action
• "Change visibility on exposure" and "Make visible" fixes now support all possible visibilities
• KT-8477 New inspection "Can be primary constructor property" with quick-fix
• KT-5010 "Redundant semicolon" inspection with quickfix
• KT-9757 Quickfix for "Unused lambda expression" warning
• KT-10844 Quick fix to add crossinline modifier
• KT-11090 "Add variance modifiers to type parameters" inspection
• KT-11255 Move Element Left/Right actions
• KT-11450 "Modality is redundant" inspection
• KT-11523 "Add @JvmOverloads annotation" intention
• KT-11768 "Introduce local variable" intention
• KT-11806 Quick-fix to increase visibility for invisible member
• KT-11807 Use function body template when generating overriding functions with default body
• KT-11864 Suggest "Create function/secondary constructor" quick fix on argument type mismatch
• KT-11876 Quickfix for "Extension function type is not allowed as supertype" error
• KT-11920 "Increase visibility" and "Decrease visibility" quickfixes for exposed visibility errors
• KT-12089 Quickfix "Make primary constructor parameter a property"
• KT-12121 "Add toString() call" quickfix
• KT-11104 New quickfixes for nullability problems: "Surround with null check" and "Wrap with safe let call"
• KT-12310 New inspection "Member has platform type" with quickfix

Issues fixed

• Fixed "Convert property initializer getter" intention being available inside lambda initializer
• Improved message for "Can be declared as val" inspection
• KT-3797 Quickfix to make a function abstract should not be offered for object members
• KT-11866 Suggest "Create secondary constructor" when constructors exist but are not applicable
• KT-11482 Fixed exception in "Move to companion object" intention
• KT-11483 Pass implicit receiver as argument when moving member function to companion object
• KT-11512 Allow choosing any source root in "Move file to directory" intention
• KT-10950 Keep original file package name when moving top-level declarations to separate file (provided it's not ambiguous)
• KT-10174 Optimize imports after applying "Move declaration to separate file" intention
• KT-11764 Intention "Replace with a forEach function call should replace continue with return@forEach
• KT-11724 False suggestion to replace with compound assignment
• KT-11805 Invert if-condition intention breaks code in case of end of line comment
• KT-11811 "Make protected" intention for a val declared in parameters of constructor
• KT-11710 "Replace if with elvis operator": incorrect code generated for if expression
• KT-11849 Replace explicit parameter with it changes the meaning of code because of the shadowing
• KT-11870 "Replace with Elvis" refactoring doesn't change the variable type from T? to T
• KT-12069 Specify language for all Kotlin code inspections
• KT-11366 "object Companion is never used" warning in intellij
• KT-11275 Inconsistent behaviour of "move lambda argument out of parentheses" intention action when using lambda calls with function arguments without parentheses
• KT-11594 "Add non-null asserted (!!) call" applied to unsafe cast to nullable type causes AE at KtPsiFactory.createExpression()
• KT-11982 False "Redundant final modifier" reported
• KT-12040 "Replace when with if" produce invalid code for first entry which has comment
• KT-12204 "Use classpath of module" option in existing Kotlin run configuration may be changed when a new run configuration is created
• KT-10635 Don't mark private writeObject and readObject methods of Serializable classes as unused
• KT-11466 "Make abstract" quick fix applies to outer class of object with accidentally abstract function
• KT-11120 Constructor parameter/field reported as unused symbol even if it have used annotation
• KT-11974 Invert if-condition intention loses comments
• KT-10812 Globally unused constructors are not marked as such
• KT-11320 Don't mark @BeforeClass (JUnit4) annotated functions as unused
• KT-12267 "Change type" quick fix converts to Int for Long literal
• KT-11949 Various problems fixed with "Constructor parameter is never used as a property" inspection
• KT-11716 "Simply for using destructuring declaration" intention: incorrect behavior for data classes
• KT-12145 "Simplify for using destructuring declaration" should work even when no variables declared inside loop
• KT-11933 Entities used only by alias are marked as unused
• KT-12193 Convert to block body isn't equivalent for when expressions returning Unit
• KT-10779 Simplify for using destructing declaration: intention / inspection quick fix is available only when all variables are used
• KT-11281 Fix exception on applying "Convert to class" intention to Java interface with Kotlin inheritor(s)
• KT-12285 Fix exception on test class generation
• KT-12502 Convert to expression body should be forbidden for non-exhaustive when returning Unit
• KT-12260 ISE while replacing an operator with safe call
• KT-12649 "Convert if to when" intention incorrectly deletes code
• KT-12671 "Shot type" action: "Type is unknown" error on an invoked expression
• KT-12284 Too wide applicability range for "Add braces to else" intention
• KT-11975 "Invert if-condition" intention does not simplify is expression
• KT-12437 "Replace explicit parameter" intention is suggested for parameter of inner lambda in presence of it from outer lambda
• KT-12290 Navigate to the generated declaration when using "Implement abstract member" intention
• KT-12376 Don't show "Package directive doesn't match file location" in injected code
• KT-12777 Fix exception in "Create class" quickfix applied to unresolved references in type arguments

Language injection

• Apply injection for the literals in property initializer through property usages
• Enable injection from Java or Kotlin function declaration by annotating parameter with @Language annotation
• KT-2428 Support basic use-cases of language injection for expressions marked with @Language annotation
• KT-11574 Support predefined Java positions for language injection
• KT-11472 Add comment or @Language annotation after "Inject language or reference" intention automatically

Refactorings

New features

• KT-6372 Add name suggestions to Rename dialog
• KT-7851 Respect naming conventions in automatic variable rename
• KT-8044, KT-9432 Support @JvmName annotation in rename refactoring
• KT-8512 Support "Rename tests" options in Rename dialog
• KT-9168 Support rename of synthetic properties
• KT-10578 Support automatic test renaming for facade files
• KT-12657 Rename implicit usages of annotation method value
• KT-12759 Suggest renaming both property accessors with matching @JvmName when renaming one of them from Java

Issues fixed

• KT-4791 Rename overridden property and all its accessors on attempt to rename overriding accessor in Java code
• KT-6363 Do not rename ambiguous references in import directives
• KT-6663 Fixed rename of ambiguous import reference to class/function when some referenced declarations are not changed
• KT-8510 Preserve "Search in comments and strings" and "Search for text occurrences" settings in Rename dialog
• KT-8541, KT-8786 Do now show 'Rename overloads' options if target function has no overloads
• KT-8544 Show more detailed description in Rename dialog
• KT-8562 Show conflicts dialog on attempt of redeclaration
• KT-8611 Qualify class references to resolve rename conflicts when possible
• KT-8732 Implement Rename conflict analysis and fixes for properties/parameters
• KT-8860 Allow renaming class by constructor delegation call referencing primary constructor
• KT-8892 Suggest renaming base declarations on overriding members in object literals
• KT-9156 Quote non-identifier names in Kotlin references
• KT-9157 Fixed in-place rename of Kotlin expression referring Java declaration
• KT-9241 Do not replace Java references to synthetic component functions when renaming constructor parameter
• KT-9435 Process property accessor usages (Java) in comments and string literals
• KT-9444 Rename dialog: Allow typing any identifier without backquotes
• KT-9446 Copy default parameter values to overriding function which is renamed while its base function is not
• KT-9649 Constraint search scope of parameter declared in a private member
• KT-10033 Qualify references to members of enum companions in case of conflict with enum entries
• KT-10713 Skip read-only declarations when renaming parameters
• KT-10687 Qualify property references to avoid shadowing by parameters
• KT-11903 Update references to facade class when renaming file via matching top-level class
• KT-12411 Fix package name quotation in Move refactoring
• KT-12543 Qualify property references with this to avoid renaming conflicts
• KT-12732 Copy default parameter values to overriding function which is renamed by Java reference while its base function is unchanged
• KT-12747 Fix exception on file copy

Java to Kotlin converter

New features

• KT-4727 Convert Java code copied from browser or other sources

Issues fixed

• KT-11952 Assertion failed in PropertyDetectionCache.get on conversion of access to Java constant of anonymous type
• KT-12046 Recursive property setter
• KT-12039 Static imports converted missing ".Companion"
• KT-12054 Wrong conversion of instanceof checks with raw types
• KT-12045 Convert Object() to Any()

Android Lint

Issues fixed

• KT-12015 False positive for Bundle.getInt()
• KT-12023 "minSdk" lint check doesn't work for as/is
• KT-12674 "Calling new methods on older versions" errors for inlined constants
• KT-12681 Running lint from main menu: diagnostics reported for java source files only
• KT-12173 False positive for "Toast created but not shown" inside SAM adapter
• KT-12895 NoSuchMethodError thrown when saving a Kotlin file

KDoc

New features

• Support for @receiver tag

Issues fixed

• Rendering of _ and * standalone characters
• Rendering of code blocks
• KT-9933 Indentation in code fragments is not preserved
• KT-10998 Spaces around links are missing in return block
• KT-11791 Markdown links rendering
• KT-12001 Allow use of @param to document type parameter

Maven support

New features

• Inspections that check that kotlin IDEA plugin, kotlin Maven plugin and kotlin stdlib are of the same version
• KT-11643 Inspections and intentions to fix erroneously configured Maven pom file
• KT-11701 "Add Maven Dependency quick fix" in Kotlin source files
• KT-11743 Intention to replace kotlin-test with kotlin-test-junit

Issues fixed

• KT-9492 Configuring multiple Maven Modules
• KT-11642 Kotlin Maven configurator tags order
• KT-11436 "Choose Configurator" control opens dialogs with inconsistent modality (linux)
• KT-11731 Default maven integration doesn't include documentation
• KT-12568 Execution configuration: file path completion works only in some sub-elements of
• KT-12558 Configure Kotlin in Project: "Undo" should revert changes in all poms
• KT-12512 "Different IDE and Maven plugin version" inspection is being invoked for non-tracked pom.xml files

Debugger

New features

• KT-11438 Support navigation from stacktrace to inline function call site

Issues fixed

• Do not step into inline lambda argument during step over inside inline function body
• Fix step over for inline argument with non-local return
• KT-12067 Deadlock in Kotlin debugger is fixed
• KT-12232 No code completion in Evaluate Expression and Throwable at CodeCompletionHandlerBase.invokeCompletion()
• KT-12137 Evaluate expression: code completion/intention actions allows to use symbols from modules that are not referenced
• KT-12206 NoSuchFieldError in Evaluate Expression on a property of a derived class
• KT-12678 NoSuchFieldError in Evaluate Expression on accessing delegated property defined in other module
• KT-12773 Fix debugging for Kotlin JS projects

Formatter

Issues fixed

• KT-12035 Spaces around as
• KT-12018 Spaces between function name and arguments in infix calls
• KT-11961 Spaces before angle bracket in method definition
• KT-12175 Don't enforce empty line between secondary constructors without body
• KT-12548 Spaces around is keyword
• KT-12446 Spaces before class type parameters
• KT-12634 Spaces between method name and parenthesis in method call
• KT-10680 Spaces around in keyword
• KT-12791 Spaces between curly brace and expression inside string template
• KT-12781 Spaces between annotation and expression
• KT-12689 Spaces around semicolons
• KT-12714 Spaces around parentheses in enum elements

Other

New features

• Added "Decompile" button to Kotlin bytecode toolwindow
• Added Kotlin "Tips of the day"
• Added "Kotlin 1.1 EAP" to "Configure Kotlin Plugin updates"
• KT-2919 Constructor calls are no longer highlighted as classes
• KT-6540 Infix function calls are now highlighted as regular function calls
• KT-9410 Annotations in Kotlin are now highlighted with the same color as in Java by default
• KT-11465 Type parameters in Kotlin are now highlighted with the same color as in Java by default
• KT-11657 Allow viewing decompiled Java source code for Kotlin-compiled classes
• KT-11704 Support file path references inside of Kotlin string literals
• KT-12076 Kotlin Plugin update check: always display installed version number
• KT-11814 New icon for kotlin annotation classes
• KT-12735 Convert JavaDoc to KDoc when overriding Java class member in Kotlin

Issues fixed

• KT-5960 Can't find usages for Java methods used from Kotlin by call convention
• KT-8362 "New Kotlin file": Keywords should be escaped in package name
• KT-8682 Respect "Copy JavaDoc" option in the "Override/Implement Members..." dialog
• KT-8817 Fixed rename of Java getters/setters through synthetic property references in Kotlin
• KT-9399 Find Usages omits Kotlin annotation parameter usage in Java source
• KT-9797 "Kotlin Bytecode" toolwindow breaks after closing
• KT-11145 Use progress indicator when searching usages in Introduce Parameter
• KT-11155 Allow running multiple Kotlin classes as well as running mixtures of Kotlin and Java classes
• KT-11495 Show recursion line markers for extension function calls with different receiver
• KT-11659 Generate abstract overrides for Any members inside of Kotlin interfaces
• KT-12070 Add empty line in error message of Maven and Gradle configuration
• KT-11908 Allow properties with custom setters to be used in generated equals/hashCode/toString
• KT-11617 Fixed title of Introduce Parameter declaration chooser
• KT-11817 Fixed rename of Kotlin enum constants through Java references
• KT-11816 Fixed usages search for Safe Delete on simple enum entries
• KT-11282 Delete interface reference from super-type list when applying Safe Delete to Java interface
• KT-11967 Fix Find Usages/Rename for parameter references in XML files
• KT-10770 "Optimize imports" will not keep import if a type is only referenced by kdoc
• KT-11955 Copy/Paste inserts fully qualified name when copying function with overloads
• KT-12436 "Replace explicit parameter with it": java.lang.Exception at BaseRefactoringProcessor.run()
• KT-12440 Removing unused parameter results in Exception "Refactorings should not be started inside write action"
• KT-12006 getLanguageLevel is slow for Kotlin light classes
• KT-12026 "Constant expression required" in Java for const Kotlin values
• KT-12259 ClassCastException in light classes while trying to create generic property
• KT-12289 Remove unnecessary ? from serr live template
• KT-12110 Map help button of the Compiler - Kotlin page
• KT-12075 Kotlin Plugin update check: make dumbaware
• KT-10255 call BuildManager.clearState(project) in apply() method of Kotlin Compiler Settings configurable
• KT-11841 New Project / Module wizard, Gradle: pure Kotlin module is created without repositories call in build.gradle
• KT-11095 Java cannot infer generic return type of Kotlin function (with java 8 language level)
• KT-12090 Intellij/Kotlin plugin does not handle generic return type of static method defined in Kotlin, called from Java
• KT-12206 Fix NoSuchFieldError on accessing base property without backing field in evaluate expression
• KT-12516 File Structure: Kotlin annotation classes have Java annotation icons
• KT-11328 "New Kotlin class": generates packages when fully qualified name is specified
• KT-11778 Exception in Lombok plugin: Rewrite at slice FUNCTION
• KT-11708 "Go to declaration" doesn't work on a call to function with SAM conversion on a derived type
• KT-12381 Prefer not-nullable return type when overriding Java method without nullability annotation
• KT-12647 Performance improvement for test-related line markers
• KT-12526 Kotlin intentions increase PSI modification counts from isAvailable, even in daemon threads

Reflection

Issues fixed

• KT-11531 Optimize "KCallable.name"
• KT-10771 Reflection on Function objects does not support lambdas with generic return type
• KT-11824 Reflection inconsistency between member property and accessor

JS

• Improve performance of maps and sets

Issues fixed

• KT-6942 Generate structural equality check (i.e. Any.equals) instead of referential check (===) value equality patterns in when
• KT-7228 Wrong AbstractList signature
• KT-8299 Wrong access to private member in autogenerated code in data class
• KT-11346 Reified functions like filterIsInstance are now available in JS Standard Library
• KT-12305 Incorrect translation of vararg in @native functions
• KT-12254 JsEmptyExpression in initializer when compiling code like val x = throw Exception()
• KT-11960 Wrong code generated when a method of a local class calls constructor of the class
• KT-10931 Incorrect inlining of library method with optional parameters
• KT-12417 Wrong check cast generated for KMutableProperty

Tools

New features

• KT-11839 Maven goal to execute kotlin script

Issues fixed

• KAPT: fix error when using enum constructors with parameters
• Various problems with gradle 2.2 fixed: KT-12478, KT-12406, KT-12478
• KT-12595 JPS: Fixed com.intellij.util.io.MappingFailedException: Cannot map buffer
• KT-11166 Gradle: Unable to access internal classes from test code within the same module
• KT-12352 KAPT: Fix "Classpath entry points to a non-existent location" warnings
• KT-12074 Building Kotlin maven projects using a parent pom will silently fail
• KT-11770 Warning "RuntimeException: Could not find installation home path" when using Gradle Incremental Compilation
• KT-10969 Android extensions: NullPointerException when finding view in Fragment
• KT-11885 Gradle/Android: Unresolved reference "kotlinx" when classpath dependency is defined in root build.gradle
• KT-12786 Deprecation warning with Gradle 2.14

1.0.2-1

• KT-12159, KT-12406, KT-12431, KT-12478 Support Android Studio 2.2
• KT-11770 Fix warning "RuntimeException: Could not find installation home path" when using incremental compilation in Gradle
• KT-12436, KT-12440 Fix multiple exceptions during refactorings in IDEA 2016.2 EAP
• KT-12015, KT-12047, KT-12387 Fix multiple issues in Kotlin Lint checks

1.0.2

Compiler

Analysis & diagnostics

• KT-7437, KT-7971, KT-7051, KT-6125, KT-6186, KT-11649 Implement missing checks for protected visibility
• KT-11666 Report "Implicit nothing return type" on non-override member functions
• KT-4328, KT-11497, KT-10493, KT-10820, KT-11368 Report error if some classes were not found due to missing or conflicting dependencies
• KT-11280 Do not perform smart casts for values with custom equals compared with ==
• KT-3856 Fix wrong "inner class inaccessible" diagnostic for extension to outer class
• KT-3896, KT-3883, KT-4986 do...while (true) is now considered an infinite loop
• KT-10445 Prohibit initialization of captured val in lambda or in local function
• KT-10042 Correctly handle local classes and anonymous objects in control flow analysis
• KT-11043 Prohibit complex expressions with class literals in annotation arguments
• KT-10992, KT-11007 Fix multiple problems related to smart casts
• KT-11490 Prohibit nested intersection types in return position
• KT-11411 Report "illegal noinline/crossinline" on parameter of subtype of function type
• KT-3083 Report "conflicting overloads" for functions with parameter of type parameter type
• KT-7265 Parse anonymous functions in blocks as expressions
• KT-8246 Handle break/continue for outer loop correctly in case of try/finally in between
• KT-11300 Report error on increment or augmented assignment when get is an operator but set is not
• Report warning about unused anonymous functions
• Improve callable reference type in some ambiguous cases
• Improve multiple diagnostic messages: KT-10761, KT-9760, KT-10949, KT-9887, KT-9550, KT-11239, KT-11819
• Fix several compiler bugs leading to exceptions: KT-9820, KT-11597, KT-10983, KT-10972, KT-11287, KT-11492, KT-11765, KT-11869

JVM code generation

• KT-8269, KT-9246, KT-10143 Fix visibility of protected classes in bytecode
• KT-11363 Fix potential binary compatibility breakage on using when over enums in inline functions
• KT-11762 Fix VerifyError caused by explicit loop variable type
• KT-11645 Fix NoSuchFieldError on private const property in multi-file class
• KT-9670 Optimize Class <-> KClass wrapping/unwrapping when getting values from annotation
• KT-6842 Optimize unnecessary boxing and interface calls on iterating over ranges
• KT-11025 Don't inline const val properties in non-annotation contexts
• KT-5429 Write nullability annotations on extension receiver parameters
• KT-11347 Preserve source file and line number of call site when inlining certain standard library functions
• KT-11677 Write correct generic signatures for local classes in inlined lambdas
• KT-12127 Do not write unnecessary generic signature for property delegate backing field
• Fix multiple issues leading to exceptions or bad bytecode being generated: KT-11034, KT-11519, KT-11117, KT-11479

Java interoperability

• KT-3068 Load contravariantly projected collections in Java (List<? super T>) as mutable collections in Kotlin (MutableList<in T>)
• KT-11322 Do not lose type nullability information in SAM constructors
• KT-11721 Fix wrong "Typechecker has run into recursive problem" error on calling Kotlin get function as synthetic Java property
• KT-10691 Fix wrong "Inherited platform declarations clash" error on inheritance from generic Java class with overloaded methods

Command line compiler

• KT-9546 Flush stdout and stderr before shutdown when executing scripts
• KT-10605 Disable colored output on certain platforms to prevent crashes
• Report warning instead of error on unknown "-X" flags
• Remove the compiler option "Xmultifile-facades-open"

Compiler daemon

• Reduce read disk activity
• Fix compiler daemon JAR cache clearing on IDEA Ultimate

Standard library

• KT-11410 Reduce method count of the standard library by ~2k
• KT-9990 Optimize snapshot operations to return special collection implementations when result is empty or has single element
• KT-10794 EmptyList now implements RandomAccess
• KT-10821 Create at most one wrapper sequence for adjacent drop/take operations on sequences
• KT-11301 Make Map.plus accept Map out-projected by key type as either operand (receiver or parameter)
• KT-11485 Remove implementations of some internal intrinsic functions
• KT-11648 Add deprecated extension MutableList.remove to redirect to valid function removeAt
• KT-11348 kotlin.test: Make inline methods todo and currentStackTrace @InlineOnly not to lose stack trace
• KT-11745 Rename parameters of String.subSequence to match those of CharSequence.subSequence
• KT-10953 Clarify parameter order of lambda function parameter of *Indexed functions
• KT-10198 Improve docs for binarySearch functions
• KT-9786 Improve docs for trimIndent/trimMargin

Reflection

• KT-9952 Improve toString() for lambdas and function expressions when kotlin-reflect.jar is available
• KT-11433 Fix multiple resource leaks by closing InputStream instances
• KT-8131 Fix exception from calling KProperty.javaField on a subclass
• KT-10690 Support javaMethod and kotlinFunction for top level functions in a different file
• KT-11447 Support reflection calls to multifile class members
• KT-10892 Load annotations of const properties from multifile classes
• KT-11258 Don't crash on requesting members of Java collection classes
• KT-11502 Clarify KClass equality

JS

• KT-4124 Support nested classes
• KT-11030 Support local classes
• KT-7819 Support non-local returns in local lambdas
• KT-6912 Safe calls (x?.let { it }) are now inlined
• KT-2670 Support unsafe casts (as)
• KT-7016, KT-8012 Fix is-checks for reified type parameters
• KT-7038 Avoid unwanted side effects on is-checks for nullable types
• KT-10614 Copy array on vararg call with spread operator
• KT-10785 Correctly translate property names and receiver instances in assignment operations
• KT-11611 Fix translation of default value of secondary constructor's functional parameter
• KT-11100 Fix generation of invoke on objects and companion objects
• KT-11823 Fix capturing of outer class' this in inner's lambdas
• KT-11996 Fix translation of a call to a private member of an outer class from an inner class which is a subtype of the outer class
• KT-10667 Support inheritance from nested built-in types such as Map.Entry
• KT-7480 Remove declarations of LinkedList, SortedSet, TreeSet, Enumeration
• KT-3064 Implement CharSequence.repeat

IDE

New features:

• Spring Support
  • KT-11098 Inspection on final classes/functions annotated with Spring @Configuration/@Component/@Bean
  • KT-11405 Navigation and Find Usages for Spring beans referenced in annotation arguments and BeanFactory method calls
  • KT-3741 Show Spring-specific line markers on Kotlin classes
  • KT-11406 Support Spring EL injections inside of Kotlin string literals
  • KT-11604 Support "Configure Spring facet" inspection on Kotlin classes
  • KT-11407 Implement "Generate Spring Dependency..." actions
  • KT-11408 Implement "Generate @Autowired Dependency..." action
  • KT-11652 Rename bean attributes mentioned in Spring XML config together with corresponding Kotlin declarations
• Enable precise incremental compilation by default in non-Maven/Gradle projects
• KT-11612 Highlight named arguments
• KT-7715 Highlight vars that can be replaced by vals
• KT-5208 Intention action to convert string to raw string and back
• KT-11078 Quick fix to remove .java when KClass is expected
• KT-1494 Inspection to highlight public members with no documentation
• KT-8473 Intention action to implement interface or abstract class
• KT-10299 Inspection to warn on array properties in data classes
• KT-6674 Inspection to warn on protected symbols in effectively final classes
• KT-11576 Quick fix to suppress "Unused symbol" warning based on annotations on the declaration
• KT-10063 Quick fix for adding arrayOf wrapper for annotation parameters
• KT-10476 Quick fix for converting primitive types
• KT-10859 Quick fix to make var with private setter final
• KT-9498 Quick fix to specify property type
• KT-10509 Quick fix to simplify condition with senseless comparison
• KT-11404 Quick fix to let type implement missing interface
• KT-6785, KT-10013, KT-9996, KT-11675 Support Smart Enter for trailing lambda argument, try/catch/finally, property setter, init block
• Add kotlinClassName() and kotlinFunctionName() macros for use in live templates
• Auto-configure EAP-repository during Kotlin Maven and Gradle project set up

Issues fixed:

• KT-11678, KT-4768 Support navigation to Kotlin libraries from Java sources
• KT-9401 Support Change Signature quick fix for Java -> Kotlin case
• KT-8592 Fix "Choose sources" for Kotlin files
• KT-11256 Fix Navigate to declaration for Java constructor with @NotNull parameter
• KT-11018 Fix vars shown in Ctrl + Mouse Hover as vals
• KT-5105, KT-11024 Improve incompatible ABI versions editor strap, show the hint on how to resolve the problem
• KT-11638 Fixed hashCode() implementation in "Generate equals/hashCode" action
• KT-10971 Pull Members Up: Always insert spaces between keywords
• KT-11476, KT-4175, KT-10965, KT-11076 Formatter: fix multiple issues regarding space handling
• KT-9025 Improve "Create Kotlin Java runtime library" dialog usability
• KT-11481 Fix "Add import" intention not being available for is branches in when
• KT-10619 Fix completion after package name in annotation
• KT-10621 Do not show non-top level packages after @ in completion
• KT-11295 "Convert string to template" intention: fix exception on certain code
• KT-10750, KT-11424 "Convert if to when" intention now detects effectively else branches in subsequent code and performs more accurate comment handling
• Configure Kotlin: show only changed files in the notification "Kotlin not configured", restore all changed files in undo action
• KT-11556 Do not show "Kotlin not configured" for Kotlin JS projects
• KT-11593 Fix "Configure Kotlin" action for Gradle projects in IDEA 2016
• KT-11077 Use new built-in definition file format (.kotlin_builtins files)
• KT-5728 Remove closing curly brace in a string template when opening one is deleted
• KT-10883 "Explicit get or set call" quick fix: do not move caret too far away
• KT-5717 "Replace when with if": do not lose comments
• KT-10797 "Replace with operator" intention is not available anymore for non-operator functions
• KT-11529 Highlighting range for unresolved annotation name does not include @ now
• KT-11178 Don't show "Change type arguments" fix when there's nothing to change
• KT-11789 Don't interpret annotations inside Markdown code blocks as KDoc tags
• KT-11702 Fixed resolution of Kotlin beans with custom name
• KT-11689 Fixed exception on attempt to navigate to Kotlin file from Spring notification balloon
• KT-11725 Fixed renaming of injected SpEL references
• KT-11720 Fixed renaming of Kotlin beans through SpEL references
• KT-11719 Fixed renaming of Kotlin parameters references in XML files
• KT-11736 Fixed searching of Java usages for @JvmStatic properties and @JvmStatic @JvmOverloads functions
• KT-11862 Fixed bogus warnings about unresolved types in the Change Signature dialog
• Fix several issues leading to exceptions: KT-11579, KT-11580, KT-11777, KT-11868, KT-11845, KT-11486
• Fixed NoSuchFieldException in Kotlin module settings on IDEA Ultimate

Debugger

• KT-11705 "Smart step into" no longer skips methods from subclasses
• Debugger can now distinguish nested inline arguments
• KT-11326 Support private classes in Evaluate Expression
• KT-11455 Fix Evaluate Expression behavior for files with errors in sources
• KT-10670 Fix Evaluate Expression behavior for inline functions with default parameters
• KT-11380 Evaluate Expression now handles smart casts correctly
• KT-10148 Do not suggest methods from outer context in "Smart step into"
• Fix Evaluate Expression for expression created for array element
• Complete private members from libraries in Evaluate Expression
• KT-11578 Evaluate Expression: do not highlight completion variants from nullable receiver with grey
• KT-6805 Convert Java expression to Kotlin when opening Evaluate Expression from Variables view
• KT-11927 Fix "ambiguous import" error when invoking Evaluate Expression from Variables view for some field
• KT-11831 Fix Evaluate Expression for values of raw types
• Show error message when debug info for some local variable is corrupted
• Avoid 1s delay in completion in debugger fields if session is not stopped on a breakpoint
• Avoid cast to runtime type unavailable in current scope
• Fix text with line breaks in popup with line breakpoint variants
• Fix breakpoints inside inline functions in libraries sources
• Allow breakpoints at catch clause declaration
• KT-11848 Fix breakpoints inside generic crossinline lambda argument body
• KT-11932 Fix Step Over for while loop condition

Java to Kotlin converter

• Protected members used outside of inheritors are converted as public
• Support conversion for annotation constructor calls
• Place comments from the middle of the call to the end
• Drop line breaks between operator arguments (except +, -, && and ||)
• Add non-null assertions on call site for non-null parameters
• Specify type for variables with anonymous type if they have write accesses
• KT-11587 Fix conversion of static field accesses from other Java class
• KT-6800 Quote $ symbols in converted strings
• KT-11126 Convert annotations in annotations parameters correctly
• KT-11600 Do not produce unresolved toArray calls for Java Collection#toArray(T[])
• KT-11544 Fix conversion of uninitialized non-final field
• KT-10604 Fix conversion of scratch files
• KT-11543 Do not produce unnecessary casts of non-nullable expression to nullable type
• KT-11160 Fix IDE freeze

Android

• KT-7729 Add Android Lint checks for Kotlin (from Android Studio 1.5)
• KT-11487 Fixed sequential build with kapt and stubs enabled when Kotlin source file was modified and no Java source files were modified
• KT-11264 Action to create new activity in Kotlin
• KT-11201 Do not ignore items with similar names in kapt
• KT-11944 Rename Android Extensions imports when the layout file is renamed/deleted/added
• KT-10321 Do not upcast ViewStub to View
• KT-10841 Support @android:id/* IDs in Android Extensions

Maven

• KT-2917, KT-11261 Maven archetype for new Kotlin projects

Gradle

• KT-8487 Experimental support for incremental compilation with project property kotlin.incremental
• KT-11350 Fixed a bug causing Java rebuild when both Java and Kotlin are up-to-date
• KT-10507 Fix IllegalArgumentException "Missing extension point" on parallel builds
• KT-10932 Prevent compile tasks from running when nothing changes
• KT-11993 Fix NoSuchMethodError on access to internal members in production from tests (IDEA 2016+)

1.0.1-2

Compiler

• KT-11584, KT-11514 Correct comparison of Long! / Double! with integer constant
• KT-11590 SAM adapter for inline function corrected

1.0.1-1

Compiler

• KT-11468 More correct use-site / declaration-site variance combination handling
• KT-11478 "Couldn't inline method call" internal compiler error fixed

1.0.1

Compiler

Analysis & diagnostics issues fixed:

• KT-2277 Local function declarations are now checked for overload conflicts
• KT-3602 Special diagnostic is reported now on nullable ‘for’ range
• KT-10775 No compilation exception for empty when
• KT-10952 False deprecation warnings removed
• KT-10934 Type inference improved for whens
• KT-10902 Redeclaration is reported for top-level property vs classifier conflict
• KT-9985 Correct handling of safe call arguments in generic functions
• KT-10856 Diagnostic about projected out member is reported correctly on calls with smart cast receiver
• KT-5190 Calls of Java 8 Stream.collect
• KT-11109 Warning is reported on Strictfp annotation on a class because it's not supported yet
• KT-10686 Support generic constructors defined in Java
• KT-6958 Fixed resolution for overloaded functions with extension lambdas
• KT-10765 Correct handling of overload conflict between constructor and function in JPS
• KT-10752 If inferred type for an expression refers to a non-accessible Java class, it's a compiler error to prevent IAE in runtime
• KT-7415 Approximation of captured types in signatures
• KT-10913, KT-10186, KT-5198 False “unreachable code” fixed for various situations
• Minor: KT-3680, KT-9702, KT-8776, KT-6745, KT-10919, KT-9548

JVM code generation issues fixed:

• KT-11153 NoClassDefFoundError is fixed on primitive iterators during boxing optimization
• KT-7319 Correct parameter names for @JvmOverloads-generated methods
• KT-10425 Non-const values of member properties are not inlined now
• KT-11163 Correct calls of custom compareTo on primitives
• KT-11081 Reified type parameters are correctly stored in anonymous objects
• KT-11121 Generic properties generation is fixed for interfaces
• KT-11285, KT-10958 Special bridge generation refined
• KT-10313, KT-11190, KT-11192, KT-11130 Diagnostics and bytecode fixed for various operations with Long
• KT-11203, KT-11191, KT-11206, KT-8505, KT-11203 Handling of increment / decrement for collection elements with user-defined get / set fixed
• KT-9739 Backticked names with spaces are generated correctly

JS translator issues fixed:

• KT-7683, KT-11027 correct handling of in / !in inside when expressions

Standard library

• KT-10579 Improved performance of sum() and average() for arrays
• KT-10821 Improved performance of drop() / take() for sequences

Reflection

• KT-10840 Fix annotations on Java elements in reflection

IDE

New features:

• Compatibility with IDEA 2016
• Kotlin Education Plugin (for IDEA 2016)
• KT-9752 More usable file chooser for "Move declaration to another file"
• KT-9697 Move method to companion object and back
• KT-7443 Inspection + intention to replace assert (x != null) with "!!" or elvis

General issues fixed:

• KT-11277 Correct moving of Java classes from project view
• KT-11256 Navigate Declaration fixed for Java classes with @NotNull parameter in constructor
• KT-10553 A warning provided when Refactor / Move result is not compilable due to visibility problems
• KT-11039 Parameter names are now not missing in parameter info and completion for compiled java code used from kotlin
• KT-10204 Highlight usages in file is working now for function parameter
• KT-10954 Introduce Parameter (Ctrl+Alt+P) fixed when default value is a simple name reference
• KT-10776 Intentions: "Convert to lambda expression" works now for empty function body
• KT-10815 Generate equals() and hashCode() is no more suggested for interfaces
• KT-10818 "Initialize with constructor parameter" fixed
• KT-8876 "Convert member to extension" now removes modality modifiers (open / final)
• KT-10800 Create enum entry now adds comma after a new entry
• KT-10552 Pull Members Up now takes visibility conflicts into account
• KT-10978 Partially fixed, completion for JOOQ became ~ 10 times faster
• KT-10940 Reference search optimized for convention functions
• KT-9026 Editor no more locks up during scala file viewing
• KT-11142, KT-11276 Darkula scheme appearance corrected for Kotlin
• Minor: KT-10778, KT-10763, KT-10908, KT-10345, KT-10696, KT-11041, KT-9434, KT-8744, KT-9738, KT-10912

Configuration issues fixed:

• KT-11213 Kotlin plugin version corrected in build.gradle
• KT-10918 "Update Kotlin runtime" action does not try to update the runtime coming in from Gradle
• KT-11072 Libraries in maven, gradle and ide systems are never more detected as runtime libraries
• KT-10489 Configuration messages are aggregated into one notification
• KT-10831 Configure Kotlin in Project: "All modules containing Kotlin files" does not list modules not containing Kotlin files
• KT-10366 Gradle import: no fake "Configure Kotlin" notification on project creating

Debugger issues fixed:

• KT-10827 Fixed debugger stepping for inline calls
• KT-10780 Breakpoints in a lazy property work correctly
• KT-10634 Watches can now use private overloaded functions
• KT-10611 Line breakpoints now can be created inside lambda in init block
• KT-10673 Breakpoints inside lambda are no more ignored in presence of crossinline function parameter
• KT-11318 Stepping inside for each is optimized
• KT-3873 Editing code while standing on breakpoint is optimized
• KT-7261, KT-7266, KT-10672 Evaluate expression applicability corrected

Tools

• KT-7943, KT-10127 Overhead removed in Kotlin Gradle Plugin
• KT-11351 Fixed NoSuchMethodError with Gradle 2.12