Update dependency org.jetbrains.kotlin:kotlin-gradle-plugin to v1.9.21

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.jetbrains.kotlin:kotlin-gradle-plugin (source)	1.9.10 -> 1.9.21

---

Release Notes

JetBrains/kotlin (org.jetbrains.kotlin:kotlin-gradle-plugin)

v1.9.21: Kotlin 1.9.21

Changelog

Compiler

• KT-62885 Introduce a language feature entry for expect actual classes for easier configuration of MPP projects
• KT-63081 Optimize new native caches: CachedLibraries.computeVersionedCacheDirectory()

Docs & Examples

• KT-55619 Document String.format function

IDE. Gradle Integration

• KT-62877 Artifact files collecting for project configuration was finished. Resolution for configuration configuration X will be skipped

IDE. Gradle. Script

• KT-60813 Scripts: NoSuchMethodError: 'void org.slf4j.Logger.error(java.lang.String, java.lang.Object)' when dependency uses Slf4j API

JavaScript

• KT-60785 KJS: Destructured value class in suspend function fails with Uncaught TypeError: can't convert to primitive type error
• KT-63207 KMP / JS: "TypeError: <mangled_name> is not a function" with 1.9.20
• KT-62778 package.json "main" field has .js extension when the result files have .mjs extension
• KT-61795 KJS: Incremental Cache is not invalidated if useEsClasses compiler argument was changed
• KT-61957 KJS: "Uncaught ReferenceError: entries is not defined" caused by enum class with @JsExport and Enum.entries call
• KT-62444 KJS with commonJS modules should re-export in 1.9.20
• KT-63184 KJS / Serialization: JsExport on serializable interface creates erroneous TypeScript
• KT-62190 KJS: "IllegalStateException: Expect to have either super call or partial linkage stub inside constructor" caused by Compose and useEsModules()
• KT-58685 KJS: "IllegalStateException: Not locked" cused by "unlock" called twice

Klibs

• KT-62515 Interop klib of concurrent version is not accepted when building dependent project: "The library versions don't match"

Tools. CLI

• KT-63139 Incorrect kotlin implementation version (1.9.255-SNAPSHOT) in metadata info

Tools. Gradle

• KT-63499 Gradle: Source sets conventions are still registered

Tools. Gradle. JS

• KT-59523 MPP / KJS: ESM modules uses incorrect file extension on package.json (.mjs)

Tools. Gradle. Kapt

• KT-63366 Kapt processing fails with custom source sets

Tools. Gradle. Multiplatform

• KT-32608 Create JUnit-XML result file in multiplatform gradle build
• KT-63315 Wasm gradle plugin DSL is invalid for parameterless wasmWasi method
• KT-63338 [KMP] metadata task fails to find cinterop classes from dependency projects
• KT-63044 KGP: Multiplatform - 8.4 configuration cache support
• KT-63011 Apple Framework Artifacts is not connected to KotlinNativeTask
• KT-62601 AS/IntelliJ exception after updating a KMP project with a macos target to Kotlin 1.9.20-RC

Tools. Incremental Compile

• KT-61590 K2/KMP: Expect actual matching is breaking on the incremental compilation

Tools. JPS

• KT-63594 ClassCastException in JPS statistics
• KT-63651 Fix NPE in Kotlin JPS after enabling graph implementation of JPS

Tools. Kapt

• KT-57389 KAPT3 uses a Javac API for JCImport which will break in JDK 21
• KT-60507 Kapt: "IllegalAccessError: superclass access check failed" using java 21 toolchain

Tools. Scripts

• KT-54819 Scripts: Not able to use slf4j in .main.kts
• KT-61727 Scripts: Maven artifacts resolution is slow

Checksums

File	Sha256
kotlin-compiler-1.9.21.zip	cf17e0272bc065d49e64a86953b73af06065370629f090d5b7c2fe353ccf9c1a
kotlin-native-linux-x86_64-1.9.21.tar.gz	965564bb599a95283307be31947386b61f0de79514e894b1f20f4fe728eee7cc
kotlin-native-macos-x86_64-1.9.21.tar.gz	8f47cf1871bf0dfcacfc04e68ee71f2333a8a711ca25fd7a29e852eafe8da76e
kotlin-native-macos-aarch64-1.9.21.tar.gz	b3c45aa0a5aa08419bd79b06cb5bdeed32b30141a6a976b67ca91bb0959e28b7
kotlin-native-windows-x86_64-1.9.21.zip	e917e67d5dfeb4683a413b932f080adef08ba48d8ede61fbb040f9c3481f7b3a

v1.9.20

Analysis. API

New Features

• KT-58834 Analysis API: Add source shadowing feature to resolve extensions

Performance Improvements

• KT-57515 LL FIR: Performance bottleneck in CompositeModificationTracker.getModificationCount
• KT-59266 K2: optimize FirElementBuilder.getOrBuildFir for elements outside body
• KT-59454 K2: drop resolve from org.jetbrains.kotlin.analysis.api.fir.components.KtFirVisibilityChecker#collectContainingDeclarations
• KT-59453 K2: completion regression from org.jetbrains.kotlin.analysis.api.fir.components.KtFirVisibilityChecker#collectContainingDeclarations
• KT-59189 Analysis API: KtFirKDocReference.resolveToSymbols is slow
• KT-58125 K2: LL FIR: KtToFirMapping.getElement is slow for KtUserTypes due to on-air resolution of types

Fixes

• KT-59240 K2: FirLazyResolveContractViolationException: lazyResolveToPhase(IMPORTS) cannot be called from a transformer with a phase IMPORTS from superTypes
• KT-58499 K2: FirLazyBlock should be calculated before accessing
• KT-57966 K2: Analysis API: Reference Shortener does not work correctly when called on entire file
• KT-60954 K2: Analysis API: Reference shortener does not work correctly with variable assignments
• KT-60940 K2: Analysis API: Reference shortener incorrectly handles types in vararg parameters declarations
• KT-60488 Analysis API: forbid providing custom KtLifetimeToken for every analyze call
• KT-60728 K2: proper support for scripts in LL FIR transformers
• KT-59159 K2 IDE: declaration is not found exception
• KT-59297 K2: exception from body resolve leads to corrupted state and broken analysis
• KT-59077 KtFirExpressionTypeProvider behaviour for KtSimpleNameReferences in function calls
• KT-60586 K2: forbid analyze from write action
• KT-57743 K2 IDE: StackOverflowError from LLFirSessionCache for simple JPS project with cyclic dependencies
• KT-61026 K2 Scripts: FirLazyExpression should be calculated before accessing from on-air resolve
• KT-61009 K2 Scripts: KtFirExpressionTypeProvider: Expected FirResolvedTypeRef with ConeKotlinType but was FirImplicitTypeRefImplWithoutSource
• KT-60357 K2 IDE. Reified types parameters are not resolved in a function body
• KT-60317 K2 IDE. IAE "This method will only work on compiled declarations, but this declaration is not compiled" on invoking Find Usages for enum method in library
• KT-60706 K2 IDE: FirJvmTypeMapper is not found for kotlin.kotlin-stdlib-common
• KT-60552 K2: merge StateKeeper and lazy body calculator for ANNOTATIONS_ARGUMENTS_MAPPING transformer
• KT-60641 Analysis API: Scope for class org.jetbrains.kotlin.fir.types.impl.ConeClassLikeTypeImpl not found exception when stdlib is missing
• KT-60638 K2: Expected FirResolvedTypeRef with ConeKotlinType but was FirImplicitTypeRefImplWithoutSource
• KT-54846 Analysis API: add isExpect/isActual to KtSymbol
• KT-60448 FirLazyResolveContractViolationException: lazyResolveToPhase(COMPILER_REQUIRED_ANNOTATIONS) cannot be called from a transformer with a phase COMPILER_REQUIRED_ANNOTATIONS from AllOpen plugin
• KT-59342 K2 IDE. FirLazyResolveContractViolationException: lazyResolveToPhase(TYPES) cannot be called from a transformer with a phase TYPES
• KT-59687 K2: Implement proper body update for in-block modifications
• KT-59329 Resolve Extensions reference resolution breaks Find Usages
• KT-60295 K2: move checkIsResolved for annotations from LLFirAnnotationArgumentsLazyResolver to LLFirTypeLazyResolver
• KT-59758 K2: Expected is FirResolvedTypeRef, but was FirImplicitTypeRefImplWithoutSource from ReturnTypeCalculatorWithJump
• KT-60377 K2 IDE: This method will only work on compiled declarations, but this declaration is not compiled
• KT-59685 K2: rewrite on-air resolution
• KT-60132 K2: properties and functions without a name should be re-analyzable as well
• KT-59199 K2 IDE: PSI changes which do not cause OOB modifications can be unseen from the FIR elements
• KT-59667 Analysis API: PsiInvalidElementAccessException from JavaClassifierTypeImpl.substitutor
• KT-59705 KotlinExceptionWithAttachments: No fir element was found for getter
• KT-59697 AA standalone: JRT module paths are not properly populated in Windows
• KT-59505 K2: implicit type lazy resolution doesn't work for delegated declaration from other module
• KT-56426 K2 IDE: Typealised functional types cannot be rendered
• KT-59598 AA: stackoverflow while simplifying a type with a recursive type parameter
• KT-58497 K2: Expected FirResolvedTypeRef for initializer type of FirPropertyImpl(Source) but FirImplicitTypeRefImplWithoutSource found
• KT-59511 AA standalone mode creates Application Environment for tests
• KT-58161 Analysis API: Make methods in KtCallResolverMixIn more distinctive based on their receiver/return type
• KT-59093 Do not throw exception on KtCall resolution, KtCallElement.resolveCall should return null on unknown cases
• KT-59243 K2: FirLazyResolveContractViolationException: lazyResolveToPhase(IMPORTS) cannot be called from a transformer with a phase IMPORTS from permits types
• KT-58194 K2: Low Level API: use smart pointers to store references to PSI from FIR declarations for JavaElement
• KT-59133 K2: java.lang.IllegalStateException: Fir is not initialized for FirRegularClassSymbol
• KT-58174 K2: LL FIR: Invalid type reference for T & Any type
• KT-52615 LL FIR: build RAW FIR only by stubs
• KT-55053 K2: Exception "lateinit property diagnostic has not been initialized" in FirBuilder
• KT-58580 K2: LL FIR: Declarations provided by resolve extensions from a dependency module are not visible through LLFirCombinedKotlinSymbolProvider
• KT-58992 Analysis API: move org.jetbrains.kotlin.analysis.api.fir.utils.addImportToFile out of Analysis API
• KT-58727 K2: AA FIR: implicit type in delegated function treated as error
• KT-58653 K2: Analysis API: add functions for KtScope members access by name
• KT-57559 K2 IDE: KotlinExceptionWithAttachments: Modules are inconsistent on intellij project
• KT-58262 Analysis API: Declarations from Analysis API Resolve Extensions are not seen from completion
• KT-57455 LL FIR: Combine AbstractFirDeserializedSymbolProviders in session dependencies (optimization)
• KT-57207 LL FIR: Combine JavaSymbolProviders in session dependencies (optimization)
• KT-58546 K2: LL FIR: support name collision in a designation path
• KT-58495 K2: Lazy calculation is redundant
• KT-58500 K2: null cannot be cast to non-null type org.jetbrains.kotlin.fir.FirPureAbstractElement
• KT-58493 K2: Expected FirResolvedTypeRef for default value type of FirValueParameterImpl(Source) but FirUserTypeRefImpl found
• KT-58496 K2: Expected FirNamedReference, FirErrorNamedReference or FirFromMissingDependenciesNamedReference, but FirExplicitSuperReference found
• KT-58491 K2: Expected FirResolvedTypeRef or FirImplicitTypeRef for return type of FirDefaultPropertyBackingField(Synthetic) but FirUserTypeRefImpl found
• KT-56550 LL FIR: implement parallel resolve for non-jumping phases
• KT-58503 Analysis API: KtFirNamedClassOrObjectSymbol.visibility/modality do not trigger STATUS resolve
• KT-57623 K2 IDE: ConcurrentModificationException from getSuperConeTypes
• KT-58083 K2: LL FIR: implement FakeOverrideTypeCalculator

Android

• KT-27170 Android lint tasks fails in Gradle with MPP dependency

Backend. Native. Debug

• KT-61131 Virtual functions trampolines have invalid debug info

Backend. Wasm

Fixes

• KT-60244 K/Wasm: make the compiler compatible with Wasm GC phase 4 (Final) specification
• KT-61262 K/Wasm: add a way to turn on k2 in wasm examples that don't use compose
• KT-61343 K/Wasm: add a wasi example to kotlin-wasm-examples
• KT-62147 [Kotlin/Wasm] Nothing typed when expression cause a backend error
• KT-59720 K/Wasm: update to final opcodes
• KT-60834 K/Wasm: investigate consequences of stopping using br_on_cast_fail
• KT-59294 WASM: localStorage Cannot read properties of undefined (reading 'length')
• KT-60835 K/Wasm: fix compatibility with Node.js 20.*
• KT-60113 K/Wasm: illegal cast when using 1.9.20-dev
• KT-60496 Compose-web Wasm crashes on remember { null } calls
• KT-58746 K/Wasm: Make Arrays' constructors with size and lambda inline (similar to other implementations)
• KT-58993 [K/Wasm] Fix w3c declarations with lambda parameters
• KT-59722 K/Wasm: Support new encoding with flags for br_on_cast and br_on_cast_fail instructions
• KT-59713 K/Wasm: Implement enumEntries intrinsic
• KT-59082 WASM: NullPointerException caused by companion with String type constants
• KT-58941 WASM Hang with extension delegate inside a Class
• KT-60200 K/Wasm: generate types without supertypes properly
• KT-52178 IR dump doesn't seem to work for Kotlin/WASM phases
• KT-59556 Wasm: critical dependency when using with webpack
• KT-58681 K/Wasm: division remainder has a wrong sign
• KT-56711 Wasm: IllegalStateException caused by dynamic type

Compiler

New Features

• KT-58551 KMP: check all annotation from expect declaration are present on actual
• KT-58554 KMP: restrict expect opt-in annotations and actual typealiases to annotations with special meaning
• KT-58545 KMP: prohibit implicit actualization via Java
• KT-58536 KMP: prohibit expect tailrec / expect external
• KT-59764 Make a frontend checker that reports cast to forward declaration as unchecked
• KT-60528 Updates for JVM/IR backend of kotlin-atomicfu-compiler-plugin
• KT-59558 Add support for creating annotation instances with type parameters
• KT-52367 Devirtualization algorithm improvement
• KT-58652 Native: Implement frontend checkers for HiddenFromObjC on classes

Performance Improvements

• KT-59600 K2: CFG: do not add edges to nested classes and functions
• KT-57860 K/N: Functions with default arguments of value/inline class types have poor performance due to value class boxing

Fixes

• KT-60387 K2: IDE K2: "org.jetbrains.kotlin.fir.expressions.impl.FirArgumentListImpl cannot be cast to class org.jetbrains.kotlin.fir.expressions.impl.FirResolvedArgumentList"
• KT-61228 False positive MUST_BE_INITIALIZED_OR_FINAL_OR_ABSTRACT_WARNING for effectively final properties
• KT-61643 "Argument type mismatch" for mixed Java/Kotlin Project with Java 21
• KT-62389 JDK 21: Cannot access class 'TimeUnit'. Check your module classpath for missing or conflicting dependencies
• KT-56768 K2. No error description on incomplete try catch declaration
• KT-52220 FIR + LightTree - Consider building a single tree on parsing into LightTree
• KT-60601 K2 / Maven: Overload resolution ambiguity between candidates inline method
• KT-62027 "java.lang.IndexOutOfBoundsException: Empty list doesn't contain element at index 0" caused by ClassicExpectActualMatchingContext.kt when annotation @AllowDifferentMembersInActual used
• KT-62747 Wrong warning message when overriding vararg with Array during actualization
• KT-62655 Don't report a warning when new members and new supertypes are added to open expect actualization
• KT-62313 Kotlin/Native Compiler crash: ClassCastException in IntrinsicGenerator
• KT-60902 visibility vs upper bound expect actual matching conflict
• KT-61095 K2: "IAE: source must not be null" from FirMultipleDefaultsInheritedFromSupertypesChecker
• KT-47567 'Val cannot be reassigned' error not reported in unreachable code
• KT-59468 K2: build realm-kotlin
• KT-62026 KMP: Correctly handle a case when annotation on expect declaration is unresolved
• KT-59476 K2: build ClashForAndroid
• KT-59487 K2: build KSP-playground
• KT-47409 K1/K2: Investigate and align inference for equality (==) operator
• KT-59393 K2: Missing TYPE_ARGUMENTS_FOR_OUTER_CLASS_WHEN_NESTED_REFERENCED
• KT-62127 "NoSuchFieldError: TRUE$delegate" on referencing companion's variable in submodule
• KT-62335 Improve debuggability of code generator crashes
• KT-61165 More than one overridden descriptor declares a default value for 'cause: Throwable?'. As the compiler can not make sure these values agree, this is not allowed
• KT-62263 Turn "different expect/actual members" error into a warning
• KT-59969 K2: Disappeared UNSUPPORTED_CONTEXTUAL_DECLARATION_CALL
• KT-61616 K2: IrBuiltIns.extensionToString fails during native compilation
• KT-59377 K2: Missing CALL_TO_JS_MODULE_WITHOUT_MODULE_SYSTEM
• KT-61645 K2/KMP: Set stdlib-native before stdlib-commonMain in dependencies for shared native metadata compilation
• KT-61924 Native: problem with abstract fake override from Any
• KT-61933 K2: "Argument type mismatch: actual type is 'Foo<kotlin/Function0<kotlin/Unit>>' but 'Foo<kotlin/coroutines/SuspendFunction0<kotlin/Unit>>' was expected"
• KT-59471 K2: build multiplatform-settings
• KT-56077 K2: build kotlinx.atomicfu
• KT-59465 K2: build kotlinx-datetime
• KT-60824 K2 IDE: FirSyntheticCallGenerator: IAE: List has more than one element
• KT-61856 K2: "KotlinIllegalArgumentExceptionWithAttachments" on usage of javax.validation.constraints.Email.List
• KT-54792 Store program order of properties inside @kotlin.Metadata
• KT-56083 K2: build ktor
• KT-23861 Expect annotation should not be applicable wider than the actual one
• KT-59466 K2: build kotlinx-benchmark
• KT-60830 KMP, K2: expect actual annotation IR checker doesn't unwrap actual typealiases to annotations
• KT-61668 Put expect/actual diagnostics introduced in 1.9.20 release under 1.9 Language Version
• KT-61725 KMP: Annotation matching requirement for expect/actual leads to errors for annotations with @OptionalExpectation
• KT-47892 False negative BREAK_OR_CONTINUE_OUTSIDE_A_LOOP with continue in init block inside for
• KT-61784 KMP: [DEFAULT_ARGUMENTS_IN_EXPECT_WITH_ACTUAL_TYPEALIAS] checker missed for companion functions
• KT-61173 K2: FirProperty.hasBackingField is true for an expect val
• KT-59743 K2: erroneous binding of typealias with two type parameters to a class with one type parameter
• KT-60650 KMP: prohibit problematic actual typealiases
• KT-61461 K2: Kotlin native metadata compilation breaks when stdlib is present in -libraries
• KT-61270 Enabling Kotlin/Native caching causes 65K warnings from dsymutil when building Compose iOS app
• KT-58229 K2/MPP/JVM: compiler codegen crash on call of inherited generic class's method with actual-typealias as value parameter
• KT-47702 Support call of Java annotation constructor without specifying a default value
• KT-56460 K2: Do not re-run DiagnosticCollectorVisitor from FirInlineDeclarationChecker.checkChildrenWithCustomVisitor
• KT-55933 K2: False negative Overload resolution ambiguity for call functions with named parameters if one of params is vararg
• KT-59548 FIR2IR: inconsistent generation of dispatch receiver for object methods
• KT-55072 K2: False positive "suspension point is inside a critical section"
• KT-58778 JVM IR inline: add fake variables for debugger
• KT-59404 K2: Missing EXPECT_TYPE_IN_WHEN_WITHOUT_ELSE
• KT-59830 K2. False negative [FINAL_SUPERTYPE] on extending final class through type alias
• KT-60580 K2: Not supported: class org.jetbrains.kotlin.fir.types.ConeFlexibleType
• KT-59391 K2: Missing JS_BUILTIN_NAME_CLASH
• KT-59392 K2: Missing NAME_CONTAINS_ILLEGAL_CHARS
• KT-58360 Intrinsics for atomic update of array elements
• KT-59165 K2: Prohibit class literals with empty left-hand side
• KT-60427 K2 @Metadata annotations contain outerType/outerTypeId information for non-inner nested classes
• KT-59376 K2: Missing TYPECHECKER_HAS_RUN_INTO_RECURSIVE_PROBLEM_ERROR
• KT-55221 K2: No error reported for self-referencing local function with inferred return type
• KT-59586 K2: support JVM backend diagnostics in light tree mode
• KT-57780 K2: Calling a constructor through a deprecated typealias doesn't report a deprecation
• KT-59110 K2. "NotImplementedError: An operation is not implemented." error on incorrect @Target annotation
• KT-59249 K2: Empty varargs are not serialized to KLIB
• KT-55373 K2. Unresolved reference error for type mismatch with callable references
• KT-55955 K2: callable references are not properly resolved when in conflict with expected type
• KT-60144 JVM IR inline: backport primitive boxing in class literals
• KT-60779 K2: missing INTERFACE_CANT_CALL_DEFAULT_METHOD_VIA_SUPER
• KT-60587 K2: Implement warning NO_REFLECTION_IN_CLASS_PATH
• KT-61145 False negative NOTHING_TO_OVERRIDE when context receivers don't match
• KT-59378 K2: Missing FINITE_BOUNDS_VIOLATION and FINITE_BOUNDS_VIOLATION_IN_JAVA
• KT-61163 Default params on actual check and inheritance by delegation compilation error
• KT-60800 [atomicfu-K/N]: turn on the tests for the K/N part of the compiler plugin
• KT-61029 K2: Duplicates when processing direct overridden callables
• KT-55196 K2: False-negative CONST_VAL_WITH_NON_CONST_INITIALIZER on boolean .not() call
• KT-60862 Kotlin Scripting: NoSuchMethodError for ExternalDependenciesResolver.addRepository
• KT-57963 K2: MPP: Annotation calls should be actualized
• KT-60854 K2: IrActualizer incorrectly generates fake overrides for synthetic java properties
• KT-59665 ACTUAL_FUNCTION_WITH_DEFAULT_ARGUMENTS isn't reported for actual typealias and fake-override actualization
• KT-61039 False positive ABSTRACT_MEMBER_NOT_IMPLEMENTED in K1 when expect actual super types scopes don't match
• KT-61166 Inherited platform declaration clash & accidental override
• KT-60531 K2/JS: Report diagnostics before running FIR2IR
• KT-32275 Embedding kotlin-compiler-embeddable into a Java EE App leads to CDI related deployment error
• KT-57845 K2. Unresolved reference error on calling Java references with fully qualified name
• KT-58757 K2: False-positive NON_PUBLIC_CALL_FROM_PUBLIC_INLINE error in case an inline fun is protected and is a part of an internal abstract class declaration
• KT-59736 kotlinx.serialization + K2 + JS: e: java.lang.IllegalStateException: Symbol for kotlinx.serialization.json.internal/FormatLanguage.|-547215418288530576[1] is unbound
• KT-59071 K2/MPP: internal declarations from common module are invisible in dependent source sets if there is more that one intermediate source set between
• KT-61167 Runtime failure: ReferenceError: MyPromise is not defined
• KT-59408 K2: Missing MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES
• KT-61409 Kotlin/Native: crash in kmm-production-sample (compose-app) with escape analysis enabled
• KT-57329 K/N IR linkage issues due to the combination of static caches w/ Lazy IR & Compose compiler plugin
• KT-59247 Kapt+JVM_IR: AssertionError on anonymous object in enum super constructor call
• KT-58576 K2: IR actualization problems in MPP scenario
• KT-61442 K2: Consider stricter filtering on implicit integer coercion
• KT-61441 K2: Wrong overload is chosen with ImplicitIntegerCoercion enabled
• KT-59328 K2: property with compound getter and without explicit type: compilation failure, IAE "List has more than one element" at FirDeclarationsResolveTransformer.transformFunctionWithGivenSignature()
• KT-61159 K2: OVERLOAD_RESOLUTION_AMBIGUITY between private top-level property in same file and top-level property in different module
• KT-59233 K2: false-negative diagnostic on creating a callable reference to a function with free type variables
• KT-61418 k2: ImplicitIntegerCoercion to List leads to "IllegalStateException: Cannot find cached type parameter by FIR symbol"
• KT-61373 False positive: "The opt-in annotation is redundant: no matching experimental API is used" with multiplatform code.
• KT-58884 K2: NotAMockException for mock testing with lambda expression with Maven
• KT-58893 K2: MockitoException for mock testing with lambda expression with Gradle
• KT-59483 K2: Build a Native app
• KT-57738 K2: unresolved class fields and methods in kotlin scripts
• KT-59449 K2: Diagnostic messages contain debugging-style rendered FIR
• KT-59849 K2: IllegalArgumentException: List has more than one element
• KT-57553 Implement deprecation for open val with backing field and deferred initialization in K1
• KT-57230 Support Kotlin/Wasm in the K2 platform
• KT-59409 K2: Missing DEFAULT_VALUE_NOT_ALLOWED_IN_OVERRIDE
• KT-59058 Companion object is not initialized on class constructor call
• KT-61017 K2: intermediate expect/actual class results in expected class has no actual declaration in module
• KT-60181 K2: "NotImplementedError: An operation is not implemented" with Spring
• KT-59472 K2: build Reaktive
• KT-54786 MPP: "LazyTypeAliasDescriptor cannot be cast to class org.jetbrains.kotlin.descriptors.ClassDescriptor" caused by expected non-constant function argument on iOS if class is type aliased
• KT-59753 K2: NotImplementedError when using annotation with vararg with default value from other module
• KT-60883 K2: Fix testRequireKotlinCompilerVersion in LV 2.0 branch
• KT-59747 K2: cannot actualize expect class to Unit via typealias
• KT-61054 K2: "IAE: source must not be null" with -no-reflect on calling property getter with implicit invoke
• KT-57126 [KLIB Reproducibility] Manifest is written using os-dependent line separators
• KT-60850 K2: FIR2IR generates incorrect signature for fake overrides for common declaration if it called from a platform module
• KT-59218 K2: return types of calls to @PolymorphicSignature methods inside try-expressions don't resolve to void when required
• KT-60002 K2: Missing UNSUPPORTED_SUSPEND_TEST
• KT-61011 K2 Scripts: FirRecursiveProblemChecker: Expected FirResolvedTypeRef with ConeKotlinType but was FirImplicitTypeRefImplWithoutSource
• KT-58906 K2. "Backend Internal error: Exception during IR lowering" instead of CANNOT_INFER_PARAMETER_TYPE error when parameter type missing in lambda
• KT-59490 K2: build km-shop
• KT-60163 K2: vararg annotation argument value is serialized not as an array
• KT-59355 K2: Allow to actual classifier have wider visibility than the corresponding expect class
• KT-56179 [K2/N] interop_objc_tests/multipleInheritanceClash.kt test failed
• KT-59411 K2: Missing ENUM_CLASS_CONSTRUCTOR_CALL
• KT-59410 K2: Missing TYPEALIAS_EXPANDED_TO_MALFORMED_TYPE
• KT-59382 K2: Missing PROTECTED_CONSTRUCTOR_NOT_IN_SUPER_CALL
• KT-59901 K2: Disappeared API_NOT_AVAILABLE
• KT-60474 K2: False negative type mismatch for array literal with wrong numeric literal
• KT-59610 K2: Calls to annotations with default values are serialized differently in K1 and K2
• KT-60139 K2: Refactor handling of implicitly actual declarations (annotation & inline class constructors and property of inline class)
• KT-60793 K2: IllegalStateException: Expected FirResolvedTypeRef with ConeKotlinType but was FirJavaTypeRef
• KT-60735 K2: lateinit property diagnostic has not been initialized
• KT-60137 K2: Quite complicated redeclaration error description is displayed for data classes
• KT-60639 K2: IllegalStateException: Unsupported compile-time value GET_CLASS type=kotlin.reflect.KClass<p1.A>
• KT-56888 CFA: Valid green in K1 -> red in K2. catch_end -> finally -> after_try
• KT-60723 K2: Nested finally block has extra jump edge if surrounding try block jumps
• KT-60573 K2: False positive/negative CONFLICTING_OVERLOADS for main functions
• KT-60124 K2: Conflicting declarations on extension properties with different upper-bounded type parameter
• KT-60259 K2: Reflection target is missing on adapted function refernces
• KT-59036 InstantiationError when instantiating annotation with a parameter type as a default parameter of another annotation
• KT-59094 K2: Fix Scripting K2 tests
• KT-59711 K/N: Implement enumEntries intrinsic
• KT-59748 K2: Return type mismatch: expected Unit, actual Any? for when with an assignment in branch
• KT-60154 K2: Expected some types error
• KT-58139 K2/MPP/metadata: compiler FIR serialization crash on complex expression as annotation argument
• KT-59485 K2: build Anki-Android
• KT-59415 K2: Missing DATA_CLASS_OVERRIDE_DEFAULT_VALUES_ERROR
• KT-59710 K/JVM: Implement enumEntries intrinsic
• KT-57984 K2/JS fails with IdSignature clash for inherited expect/actual function
• KT-59398 K2: Missing NOT_SUPPORTED_INLINE_PARAMETER_IN_INLINE_PARAMETER_DEFAULT_VALUE
• KT-60645 Native: dynamic caches are broken on Linux
• KT-50221 FIR: handle enhanced/flexible nullability inside withNullability properly
• KT-59281 JVM IR inline: incorrect type of created array
• KT-59507 JVM IR inline: invocation of arrayOfNulls by function reference results in exception
• KT-58359 Allow volatile intrinsics on inline function constant arguments
• KT-60598 K2: add OptIn checkers for command line arguments
• KT-59766 K2: ISE: Cannot find cached type parameter by FIR symbol during the coroutines library build
• KT-59644 K2: the companion object in an expect class requires to be explicitly defined for compileNativeMainKotlinMetadata
• KT-59640 K2: expect constructor requires calling this or super but didn't use to
• KT-58883 K2: False negative type mismatch for generic annotation in collection literal
• KT-59581 K2: Initializer type mismatch: expected Array<KClass<*>>, actual Array<KClass> in annotation parameter default value using array literal
• KT-59069 K2 does not report EXPECTED_CLASS_CONSTRUCTOR_DELEGATION_CALL
• KT-59416 K2: Missing EXTERNAL_INTERFACE_AS_REIFIED_TYPE_ARGUMENT
• KT-59417 K2: Missing CALL_FROM_UMD_MUST_BE_JS_MODULE_AND_JS_NON_MODULE
• KT-59381 K2: Missing CALL_TO_JS_NON_MODULE_WITH_MODULE_SYSTEM
• KT-59384 K2: Missing DYNAMIC_NOT_ALLOWED
• KT-59406 K2: Missing PROPERTY_DELEGATION_BY_DYNAMIC
• KT-60247 K2: order of data class generated member differs in IR
• KT-57223 K2: false-negative INAPPLICABLE_JVM_NAME on non-final properties outside interfaces
• KT-60183 K2: INAPPLICABLE_JVM_NAME on private methods with all-open plugin
• KT-60120 K2 can't get a default parameter value of expect annotation
• KT-57240 K2 MPP: Actualization doesn't work for flexible types
• KT-60436 K2: investigate possible FirJavaTypeRef equals parameter in FirDataFlowAnalyzer.hasEqualsOverride
• KT-60299 K2: when a typealias to Unit is returned, an explicit return is now required
• KT-58005 K2: Unsupported compile-time value BLOCK for Repeatable annotations
• KT-60223 K2: Wrong import with import alias
• KT-54854 K2. Unresolved reference for not imported declaration when it is already imported as an import alias is absent in K2
• KT-59738 K2: NoSuchElementException from JvmValueClassLoweringDispatcher in MPP environment
• KT-59708 K2: "Property must be initialized or be abstract" occurs due to constructors order
• KT-58483 K2. -Xmulti-platform flag isn't working
• KT-53490 FIR: Refactor augmented assignment resolving code - fix lhs-related problems and combine similar code in array and assign operator handling
• KT-59673 K2: incorrect error message
• KT-58578 K2: Commonize expect-actual logic between FIR and IR actualizer
• KT-54989 FIR2IR: fragile code in postfix op detection
• KT-59464 K2: Investigate cases of implicit type refs in Fir2IrImplicitCastInserter
• KT-53898 K2: False negative VAL_REASSIGNMENT on member vals
• KT-57641 K2: "java.lang.NoSuchFieldException: INSTANCE" in kotlin-reflect for KClass.objectInstance on an anonymous object
• KT-59299 [K2] ISE in IrBindablePublicSymbolBase.bind on equals function from companion of serializable class
• KT-58844 Incorrect type mismatch error: "actual type is kotlin/Int but kotlin/Int was expected"
• KT-59413 K2: Missing VALUE_CLASS_CANNOT_HAVE_CONTEXT_RECEIVERS
• KT-56173 FIR: IrGenerationExtensions cannot see default values from expect declarations
• KT-59611 FIR2IR: Unsupported callable reference for enum entry with clashing name
• KT-59858 Kotlin Native: Compilation failed: Sequence contains more than one matching element, org.jetbrains.kotlin.backend.konan.lower.FunctionReferenceLowering$FunctionReferenceBuilder.buildClass(FunctionReferenceLowering.kt:644)
• KT-58539 [K2] Ir actualization fails to match expect/actual declarations that use custom function types
• KT-59775 'toString()' on Object returns different result with concatenation
• KT-59737 K2: Actual class 'actual class FastArrayList : AbstractMutableList, MutableListEx, RandomAccess' has no corresponding members for expected class members because of different parameter names in Java
• KT-59613 K2: Unhandled intrinsic in ExpressionCodegen exception in for expect function with default value in parameter
• KT-59216 K2. Unhelpful unresolved reference when inheriting from interface with constructor call (K1 reports NO_CONSTRUCTOR instead)
• KT-59057 Revise muted tests for native backend
• KT-57377 K2/MPP: internal declarations from common module are inivisible for intermediate modules during metadata compilation
• KT-59693 MPP: linkReleaseExecutableLinux fails with IllegalStateException: Drains have not been painted properly
• KT-59362 K2/MPP: .toByte() conversion for const val causes SourceCodeAnalysisException: java.lang.NullPointerException: null
• KT-51670 FIR: questionable behavior for deprecated String constructors
• KT-35314 StackOverflowError with nested try-finally and function with contracts
• KT-53460 False positive smartcast warning in if block after if block
• KT-40851 False MUST_BE_INITIALIZED_OR_BE_ABSTRACT error for a property which is initialised in the init block
• KT-59695 K2: false negative NON_PUBLIC_CALL_FROM_PUBLIC_INLINE
• KT-41198 False positive “Variable must be initialized” with assignment in scope function and safe call
• KT-58901 K2. Value parameter default values are not checked for type mismatch
• KT-48115 Member functions with type parameter and contract don't produce smartcasts
• KT-59541 K2: Type checking has run into a recursive problem on code that was compiling with Language 1.9
• KT-58943 K2: Incorrect with K1 priority of "invokeExtension + implicit receiver" candidate
• KT-37375 [FIR] Incorrect invoke resolution
• KT-59789 K2: self-reference does not compile anymore
• KT-59286 JVM IR inline: local property not found
• KT-58823 K2: Android app crashes right after start: java.lang.NoSuchMethodError: No virtual method findViewById(I)Landroid/view/View
• KT-57754 K2: No public signature built for the synthesized delegate field
• KT-58533 K2: "Not enough information to infer type variable T" for generic call in throw expression
• KT-34846 FIR Java: enhance type parameter bounds properly
• KT-52043 FIR: FirValueParameter with SubstitutionOverride does not reference the original FIR declaration
• KT-59291 JVM IR inline: unexpected result of apiVersionIsAtLeast invocation
• KT-59550 K2: synthetic property isn't seen through Java
• KT-59038 [K2] IllegalStateException in mixed Java/Kotlin inheritance
• KT-59489 K2: builld spring-petclinic-kotlin
• KT-58908 K2. Internal error "kotlin.UninitializedPropertyAccessException: lateinit property firType has not been initialized" on incomplete is
• KT-56755 K2: Investigate failures related to line numbers with LT compilation enabled
• KT-56139 K2: consider adding source element for implicit receivers
• KT-57489 K2: Incorrectly generated line numbers in companion object access inside class
• KT-58947 Run all existing codegen box tests with kapt stub generation
• KT-58827 K2 reports ACTUAL_WITHOUT_EXPECT on the whole class
• KT-54917 K2: ILT leak from a completed generic call
• KT-56187 K2: type parameter's upper bound is ignored in callable references
• KT-56186 K2: lack of type arguments in type constructor is ignored in callable references
• KT-59356 K2: Restrict rules for matching of expect supertypes for actual class
• KT-57217 K2: NoSuchMethodError on toChar call on java inheritor of java.lang.Number
• KT-58356 K2: StackOverflowError with OptIn and Deprecated, while compiling Kotlin project
• KT-57954 K2. Auto-generated "entries" member of enum class has higher priority than user-declared companion object with same name when language version is set to 2.0
• KT-59508 K2: Make sure that warnings-severity nullability annotations are not perceived as reasons for nullability errors
• KT-53820 FIR: mismatching error message for invisible reference/member
• KT-58641 K2: PublishedApi has no effect when internal fun used in the test source set
• KT-59461 K2: Erroneous null check when returning not-null typealias to nullable type
• KT-58980 K2: Import of java field from companion's base breaks the compiler
• KT-59140 K2: "Symbol public final static field is invisible" caused by java static field called in kotlin code
• KT-59501 Escape analysis constructs arrays of negative size
• KT-59452 apiVersionIsAtLeast calls in body of stdlib inline function may be evaluated on compile-time
• KT-53967 [PL] Classifiers: Turning interface from fun to non-fun + adding member function causes Kotlin/JS fail: IAE: "Sequence contains more than one matching element"
• KT-59346 Not working breakpoints on not initialized variables
• KT-55993 Wrong current pointer: strange behaviour of debugger or compiler when two IFs and an uninitialized variable between them
• KT-58335 K2: Exposed typealia

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