JetBrains/kotlin v1.9.0-RC

Kotlin 1.9.0-RC

on GitHub

Changelog

Backend. Wasm

• KT-58188 Restore binary compatibility of PlatformDiagnosticSuppressor.shouldReportUnusedParameter
• KT-58293 Wasm: ReferenceError: e is not defined in kotlin.test.jsThrow
• KT-58931 Wasm tests are failing to start on Kotlin 1.9.0-Beta

Compiler

Fixes

• KT-58621 K2: Private class shadows public function defined in the same package
• KT-59102 K2: constant evaluator does not provide Long type on shl
• KT-59079 "AE: SyntheticAccessorLowering should not attempt to modify other files!" with callable reference to constructor with value class parameter
• KT-58787 KAPT: "NullPointerException: null cannot be cast to non-null type" with delegate
• KT-58837 Partial linkage fails to report any compiler message on Windows when launched through Gradle plugin
• KT-59030 [PL] Workaround for broken @Deprecated annotations in c-interop KLIBs
• KT-58618 K2: Local property delegates cannot infer generic return type
• KT-58897 K2: False positive unresolved reference with same-named enum class and its entry
• KT-56927 Enum with secondary constructor can't be compiled with K2 using JS/Native backend
• KT-57570 Remove source code excerpts from platform type nullability assertion exceptions
• KT-52774 Resolve unqualified enum constants based on expected type

IDE. Gradle Integration

• KT-59034 MPP build failed with "Factory type is not known for plugin variants" in kt-231-*

JavaScript

• KT-58570 KJS: ES6 classes + PL throw java.lang.NullPointerException
• KT-58835 K2/JS: Fix incremental compilation klib tests
• KT-58794 KJS / K2: Assertion failed with Space build

Libraries

• KT-58985 Update KClass.isData KDoc
• KT-58276 Deprecate redundant public declarations in kotlin.native.concurrent

Native. ObjC Export

• KT-58839 K/N: Exception during HiddenFromObjC marked class extension function compiling

Tools. Compiler plugins. Serialization

• KT-58918 Serialization: NPE at run time obtaining a serializer for a sealed class with a generic self-referencing property
• KT-58954 Serialization: NPE at run time when accessing a delegating property of a deserialized object
• KT-59113 Serialization: NPE at run time when accessing a delegating property of a deserialized object
• KT-57647 Serialization: "IllegalAccessError: Update to static final field" caused by serializable value class

Tools. Gradle

• KT-59256 [1.9.0-Beta] ServiceLoader does not pick up classes defined in the same project
• KT-58662 Gradle 8.1 + Configuration Cache: custom values data is missing from build report
• KT-59063 Explicit API mode broken in Kotlin 1.9.0-Beta
• KT-59191 Actual compilation failure exception might be hidden in the case of a Kotlin daemon crash
• KT-59056 FreeCompilerArgs options added using 'subprojects' extension override module-level freeCompilerArgs options
• KT-55740 Gradle 8: Listener registration using Gradle.addBuildListener() has been deprecated
• KT-58251 Build Statistics. Kotlin-specific tags are missing in build scans if projects use Gradle 8+
• KT-58916 [1.9.0-Beta] PLUGIN_CLASSPATH_CONFIGURATION_NAME and NATIVE_COMPILER_PLUGIN_CLASSPATH_CONFIGURATION_NAME should stay public or offer an alternative API
• KT-58869 K2, Gradle: Improve message "100% (2/2) tasks have compiled with Kotlin 2"

Tools. Gradle. JS

• KT-59116 K/JS npm dependcies are not resolved properly on Kotlin 1.9
• KT-58970 browserTest gradle task fails if karma is used and gradle configuration cache is enabled
• KT-59004 Kotlin JS 1.9.0-Beta, yarn.lock is unstable in multi module project

Tools. Gradle. Multiplatform

• KT-57903 Prepare for migration to the pluggable android target plugin
• KT-58661 KGP: KotlinJvmTarget: Implement 'run' carrier task
• KT-59055 KotlinJvmRun not respecting jvmToolchain setting

Tools. Gradle. Native

• KT-57823 KotlinNativeCompileOptions.moduleName value is ignored and replaced with the default one if to set up using compilations
• KT-58838 KGP/Multiplatform: 1.9.0-Beta with custom cinterops: IllegalStateException: Could not create domain object 'jni' (DefaultCInteropSettings)

Tools. Incremental Compile

• KT-58986 New IC: ISE "The following LookupSymbols are not yet converted to ProgramSymbols: LookupSymbol(name=$$delegatedProperties, ...)"

Tools. Parcelize

• KT-59112 K2: "IllegalStateException: Function has no body with @Parcelize" on nested sealed class hierarchies

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