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The problem in the test case was that `JImpl.entrySet` was detected by
ReplaceDefaultImplsOverriddenSymbols as a class fake override, which
overrides non-abstract interface method. Thus, overriddenSymbols of
`MyMap.entrySet` were changed in
`ReplaceDefaultImplsOverriddenSymbols.visitSimpleFunction`.
Later, BridgeLowering tried to determine which special bridges to
generate for `MyMap.<get-entries>`, and for that it inspected existing
methods and their overrides.
Normally we would generate the following special bridge:
getEntries()Ljava/util/Set;
invokespecial JImpl.entrySet()Ljava/util/Set;
However, because of incorrect overrides, the generated class method was
selected here instead of the expected `Map.<get-entries>`:
06001fc091/compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/BridgeLowering.kt (L282)
and since the JVM signature of the generated class method is the same as
that of the fake override in MyMap, we never got to generating the
special bridge.
The solution is to skip Java classes when looking for class methods
which override non-abstract interface methods. This logic only makes
sense for Kotlin code, because only Kotlin has DefaultImpls, and the
requirement to generate non-abstract fake overrides of interface methods
as actual methods in the bytecode, delegating to DefaultImpls.
#KT-48167 Fixed
14 lines
733 B
Plaintext
Vendored
14 lines
733 B
Plaintext
Vendored
@kotlin.Metadata
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public final class<<K:Ljava/lang/Object;V:Ljava/lang/Object;>LJImpl<TK;TV;>;> MyMap {
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// source: 'test.kt'
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public bridge final <()Ljava/util/Collection<TV;>;> method values(): java.util.Collection
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public bridge final <()Ljava/util/Set<Ljava/util/Map$Entry<TK;TV;>;>;> method entrySet(): java.util.Set
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public bridge final <()Ljava/util/Set<TK;>;> method keySet(): java.util.Set
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public <null> method <init>(): void
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public bridge <null> method getEntries(): java.util.Set
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public bridge <null> method getKeys(): java.util.Set
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public bridge <null> method getSize(): int
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public bridge <null> method getValues(): java.util.Collection
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public bridge final <null> method size(): int
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}
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