package test; import jet.runtime.typeinfo.KotlinSignature; import org.jetbrains.jet.jvm.compiler.annotation.ExpectLoadError; public class SyntaxError { @ExpectLoadError("Alternative signature has 2 syntax errors, first is at 8: Expecting a parameter declaration") @KotlinSignature("fun foo(,) : Int") public Integer foo() { throw new UnsupportedOperationException(); } }