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KT-19978 Inefficient bytecode generated for function references undergoing Java SAM conversion
KT-23565 OperationsMapGenerated.kt generates unreasonable amount of bytecode
KT-23825 Tail suspend call utilizing elvis operator does not take advantage of suspend tail call optimization
KT-23826 A suspend function on the right side of a returned || condition is not tail call optimized
KT-25348 No compile time unsigned integer conversion when using hex literal
KT-26060 Support a compiler mode to compile lambda expressions using invokedynamic instruction
KT-26590 Do not generate create method for suspend lambdas if its arity >= 2
KT-27427 Optimize nullable check introduced with 'as' cast
KT-28246 Redundant boxing/unboxing isn't eliminated by the compiler in case of inline classes and javaClass intrinsic
KT-30605 Constant folding doesn't evaluate inv() function
KT-36845 Generate enum-based TABLESWITCH/LOOKUPSWITCH on a value with smart cast to enum in JVM_IR
KT-39585 JVM BE generates redundant accessor calls when accessing static final field lifted from companion
KT-40886 Old JVM BE unspills ACONST_NULL from continuation
KT-42621 Kotlin binary size considerably larger for code extensively using stream API
KT-44153 NI: Low Memory and IntelliJ hangs when quotes in split() are missed
KT-45410 JVM / IR: Extreme performance regression on arithmetic operations inside a loop
Fixes
KT-6007 Support changed return type of inlined generic function when lambda returns anonymous object
KT-6055 Failed invoke plus assign on array element accessed via several args through local get/set convention extensions
KT-6879 CompilationException when local classes hierarchy is placed within other local or inner declaration
KT-8120 NoSuchMethodError on local class constructor call inside a local class
KT-8199 "Cannot pop operand off an empty stack" for local class using a captured variable as default value for constructor parameter
KT-10835 "AssertionError: Non-outer parameter incorrectly mapped to outer" when inlining object literal extending inner class
KT-12790 Don't generate synthetic accessors for private inline function/properties
KT-13213 IllegalArgumentException in ByteVector.putUTF8 on attempt to compile file with moderately long string literal
KT-14628 "UnsupportedOperationException: Don't know how to generate outer expression" for nested class inheriting from inner class with a companion object
KT-14833 JVM internal error: Augment assignment and increment are not supported for local delegated properties and inline properties
KT-15403 Suspend operator get wrong code generated by BE (NoSuchMethodError)
KT-15404 Suspend operator set wrong code generated
KT-16084 Proguard can't find enclosing class of let closure inside apply closure
KT-16151 Internal compiler error when using plusAssign operator with mutable map
KT-21778 "IllegalStateException: Couldn't build context" for inline function inside an anonymous object
KT-21900 VerifyError on equals on generic primitive type
KT-22098 "UnsupportedOperationException: Don't know how to generate outer expression" on extension function call inside lambda in anonymous object super constructor call
KT-22488 Bad line numbers generated for '&&' expression
KT-22972 A compiler bug(?) in Number class descendants
KT-23619 Transform stateless singleton lambda during inline
KT-23881 Declaration of lambda in inlined apply block holds reference to superfluous references causing leak
KT-24135 Calling invoke on crossinline suspend lambda leads to no state-machine
KT-24193 NoClassDefFoundError: java/lang/Cloneable$DefaultImpls on inheritance from Cloneable through an interface
KT-24305 ClassNotFoundException when using Java reflection on local class in an inlined lambda
KT-24564 Custom operator fun set on ByteArray resolves properly but is miscompiled
KT-25400 "NoClassDefFoundError: kotlin/KotlinPackage" with Turkish system locale on macOS
KT-26130 Incorrect method signature for a generic function with inline class as a type parameter upper bound
KT-26360 "Method from super interface has a different signature" for Interface that extends both interfaces with and without @JvmDefault
KT-26473 Error on compiling inline class with calls of super methods equals(), hashCode(), toString()
KT-26474 VE “Bad type on operand stack” at runtime on calling toString() method of inline class with calls of super methods (toString(), equals(), hashCode()) inside
KT-26592 Do not generate private suspend functions as synthetic package-private
KT-27449 NoSuchMethodError for local suspend function with suspend lambda parameter with default value
KT-27469 "Cannot pop operand off an empty stack" for compound assignment (plusAssign) with a vararg operator get
KT-27825 Gradually prohibit non-abstract classes containing abstract members invisible from that classes (internal/package-private)
KT-27830 "Incompatible stack heights" with suspend inline function in do while loop that executes suspend lambda
KT-28042 "Cannot pop operand off an empty stack" for a bound callable reference of lambda inside inline function
KT-28166 "Argument 1: expected I, but found R" for generic method with generic parameter or receiver with inline class upper bound
KT-28331 Consider generating accessors for lateinit properties to avoid assertion on each call
KT-28573 Inliner does not update references to transformed object
KT-29331 "AnalyzerException: Argument 1: expected R, but found I" with local generic extension property called on Int receiver
KT-29595 NoClassDefFoundError with inline reified function with lambda argument returning anonymous object
KT-29802 Incorrect reification when the same type parameter name is used for different reified types
KT-30041 "AnalyzerException: Expected an object reference, but found ." on nested suspend function calls outer suspend function
KT-30066 Consider adding annotations to ConeKotlinType
KT-30280 Inline class class literal gets unwrapped in annotation arguments
KT-30402 Constant folding works incorrectly with unsigned arithmetics
KT-30548 "java.lang.IndexOutOfBoundsException: Cannot pop operand off an empty stack" while compiling access to a private lateinit companion field
KT-30629java.lang.VerifyError: Bad type on operand stack when using a function reference to a generic property
KT-30933 Inline function produces IllegalAccessError on property reference from different package
KT-31136 "AnalyzerException: Argument 1: expected R, but found I" on x::javaClass when x is inline class object built around primitive type
KT-31227 Prohibit using array based on non-reified type parameters as reified type arguments on JVM
KT-31592 NoSuchMethodException when inlining public function accessing a protected static Java class member
KT-31727 Object expression captures all variables used in constructor
KT-32023 "AnalyzerException: Expected I, but found R" with inline suspend function used with callable reference
KT-32115 NPE during initialization of enum class with delegated property
KT-32153 "AnalyzerException: Expected an object reference, but found ." with recursive suspend local function
KT-32351 ClassNotFoundException for anonymous object implementing interface inside a lambda with data class and inline methods
KT-32384 Safe cast to generic type argument with inline class upper-bound throws NPE instead of ClassCastException
KT-32579 java.lang.VerifyError: Bad type on operand stack on calling inner class of inherited class in super class when casting to inherited class
KT-32749 "VerifyError: Call to wrong method" with inline function and accessing class field from anonymous object
KT-32793 Generated code crashes by ClassCastException with local suspend function and inline class
KT-32812 "AnalyzerException: Argument 1: expected R, but found I" invoking function with default parameter inherited by inline class
KT-32821 Missing unboxing of inline class for complex hierarchy of suspend calls
KT-33155 ClassNotFoundException for qualified this in anonymous object and as a result of inline function call
KT-33173 Internal error: "AnalyzerException: Expected I, but found R" for supercall inside inline lambda from HashSet.remove implementation
KT-33577 NoSuchFieldError with nested anonymous objects accessing outer instance property
KT-33836 Wrong code generated for a local tailrec suspend function.
KT-33873 ClassCastException invoking UByte setter function via reflection
KT-34018 "Cannot pop operand off an empty stack" with inline lambda with callable reference
KT-34186 JDK11: class file contains malformed variable arity method for vararg sealed class constructor
KT-34202 IllegalAccessError on callable reference of function from multifile facade from standard library
KT-34255 @JvmStatic tailrec function: "Cannot pop operand off an empty stack"
KT-34507 Incorrect generated code for mutable collection stub methods in case of presence of functions with similar signature
KT-34665 Possible index overflow in optimized "for" loop over withIndex()
KT-34754 Flow builder: "AnalyzerException: Expected an object reference, but found ." with recursive suspend local function
KT-34816 "AnalyzerException: Expected an object reference, but found I" on "this" in inline class member extension suspend function
KT-34841 ClassNotFoundException when invoke param function inside anonymous object method
KT-35008 "AnalyzerException: Expected an object reference, but found I" in inline class companion calling private constructor
KT-35166NoSuchMethodError at runtime with local property delegate on anonymous object referencing another anonymous object
KT-35224 It's possible to pass non-spread arrays after arguments with SAM-conversion
KT-35301 MethodInliner fails with "AssertionError: call doesn't correspond to object transformation info" for qualified this in SAM constructor used as parameter of anonymous object inside inline lambda
KT-35419Failed to generate expression: KtNamedFunction for local suspend tailrec function with receiver
KT-35511 VerifyError: "Bad type on operand stack" after reification
KT-35553 Kotlin compiler generates methods that always have line number 1 for Inline Classes
KT-35725 "AssertionError: Couldn't find a context for a super-call" for super member call in property initializer of companion object
KT-36420 ClassCastException with inline class Foo extending generic Comparable
KT-36713 AnalyzerException: "Incompatible stack heights" with suspend and inline suspend functions
KT-36794 Move $assertionsDisabled field to the top-level class
KT-36853 IR: UninitializedPropertyAccessException on tailrec with object expression in default argument
KT-36875 "RuntimeException: Trying to access skipped parameter" on synthetic local variable access from inline function
KT-36916 AnalyzerException: Argument 1: expected I, but found R when using inline class with rxjava
KT-36957 Exception during codegen: cannot pop operand off an empty stack (Nothing variable in string interpolation)
KT-36984 SAM adapter classes should be generated as anonymous inner classes in JVM_IR
KT-37716 "AssertionError: call doesn't correspond to object transformation info" with inline reified type parameter, anonymous object and lambda in constructor call
KT-37972 IllegalAccessError on initializing property reference for a property declared in JvmMultifileClass with -Xmultifile-parts-inherit
KT-38100 Support local delegated properties (not inlined) in new JVM default modes
KT-38833 JVM: java.lang.ClassCastException when loop variable is nullable in for loop over unsigned progression
KT-38849 Read-only variable initialized in non-inline lambda using contract callsInPlace EXACTLY_ONCE is not captured correctly in nested lambdas
KT-38869 JVM BE produces invalid bytecode when inheriting from AbstractList and declaring methods that look like MutableList implementors (but they aren't)
KT-38965 "UnsupportedOperationException: Don't know how to generate outer expression: Closure" with reference to local variable in block argument of anonymous object by delegation
KT-39289 CCE in if-else inside annotated 'if' statement
KT-39425 AbstractMethodError: "Receiver class does not define or inherit an implementation of the resolved method" using classes with complex Java and Kotlin inheritance hierarchies.
KT-39434 IllegalAccessError with local delegated property in lambda in inlined function
KT-39687 "Couldn't find captured this" when more than 3 inline functions are nested
KT-39784 "IndexOutOfBoundsException: Cannot pop operand off an empty stack" caused by JvmOverloads annotation inside an inline class
KT-40165 ClassCastException caused by SAM conversion used on a functional interface with suspended function
KT-40179 "VerifyError: Bad type on operand stack" with parent class get extension function and child class set extension function which used inside child class plusAssign extension function
KT-40277 Fix generic types in special bridge methods
KT-40308 NoSuchFieldError for multiple delegated extension properties with the same name in a companion object
KT-40338 NoSuchFieldError on property without backing field that is called as function reference
KT-40392 Deprecate JvmDefault annotation and old -Xjvm-default modes
KT-40396 NI: Exceptions when ambiguous type argument and generic invoke
KT-40510 "AssertionError: DELEGATION slice must override something" for ByteBuffer delegation
KT-40601 VerifyError: "interface method reference is in an indirect superinterface" when calling @JvmDefault suspend method
KT-40809 "Couldn't find captured field" compiler error with local function with recursive call through method reference
KT-41056 Increase stub version due to new "contract" keyword
KT-41105 IllegalStateException: 'Couldn't find declaration file ' with inline delegate declared in another file
KT-41165 "IllegalStateException: Concrete fake override public final fun" when an enum class inherits an interface with a variable 'name' or 'ordinal'
KT-41222 "IllegalStateException: Concrete fake override public final fun" when a class property is inherited as merged 'var' from 'val' and 'var' from parent abstract class and interface properties
KT-41255 JDK 11: "VerifyError: Bad type on operand stack" with long function body with annotated when expression
KT-41427 NoSuchMethodError caused by implementation by delegation to function reference
KT-41508 ClassNotFoundException caused by object with overridden function inside a lambda with safe cast receiver
KT-41750 Inline classes: ClassCastExceptionError when calling .withIndex() on Iterator over Array
KT-41758 Deprecate kotlin.Metadata.bytecodeVersion and avoid using it in the compiler
KT-41770 AssertionError: "Asm parameter types should be the same length as Kotlin parameter types" cause by fun interface
KT-41874 "IllegalStateException: Couldn't obtain compiled function body" on extension delegated property with inline operator getValue in a different file
KT-41917 [FIR] Incorrect calculating property type for override from intersection scope
KT-42012 IllegalAccess to protected field instead of getter
KT-42017 "AssertionError: Unsigned type expected: UInt?" during codegen when a variable of nullable unsigned type is checking for presence in the range
KT-42032 "AnalyzerException: Expected I, but found R" while using Flow.reduce() with suspend function reference
KT-42034 ArrayIndexOutOfBoundsException in PopBackwardPropagationTransformer on external override of function in inline class
KT-42064 "Parameter specified as non-null is null" with default value of the parameter in operator fun
KT-42069 JVM IR: -Xreport-output-files doesn't report any source files for META-INF/*.kotlin_module files
KT-42083 AbstractMethodError when 'remove' with irrelevant generic parameter but matching JVM signature is present in Kotlin collection class
KT-42092 JVM / IR: "AnalyzerException: Argument 1: expected R, but found J" when trying to add to ArrayList the result of a function applied to int
KT-42175 Psi2ir: "AssertionError: Undefined parameter referenced: " on augmented assignment on this in a BuilderInference lambda
KT-42179 Platform declaration clash when extending abstract Java class implementing 'java.util.Collection' by abstract Kotlin class implementing Kotlin Set or List
KT-42321 JVM IR: do not cast integer value based on the type of a literal receiver of an operator call
KT-42337 NoSuchMethodError in JVM backend with inheritance of private functions in the interface
KT-42404 "Supertypes of the following classes cannot be resolved" in Rider project
KT-42472 No TYPE_INFERENCE_UPPER_BOUND_VIOLATED for Delegated Properties do not check types (in Kotlin 1.4.10)
KT-42487 "IndexOutOfBoundsException: Cannot pop operand off an empty stack" caused by USELESS_IS_CHECK of Double type
KT-42533(N until MIN_VALUE).reversed() should be an empty progression in for loops
KT-42588 "IllegalStateException: Concrete fake override public open fun" caused by val override with var with delegation.
KT-42634 Different bridges and abstract stubs behavior in abstract class implementing Map<K, String> in JVM and JVM_IR
KT-42635 ClassCastException with inline class in for loop
KT-42662 AbstractMethodError when using partially specialized generic Map class
KT-42694@get:Synchronized causes the JVM getter method not to be generated
KT-42753 "VerifyError: Bad invokespecial instruction: interface method reference is in an indirect superinterface" with jvm-default=all
KT-42879 JVM: Declaration clash in fun interface implementation returning an inline class
KT-42900 "VerifyError: Bad return type" incorrect bytecode when a property and an extension property in inline class have the same names
KT-42946 FIR2IR: Fix super-calls to Java overrides of special built-in
KT-42971 JVM: "AssertionError: Unsigned type expected: T" with UInt loop range
KT-42990 "AssertionError: Next value after NEW should be one generated by DUP" caused by extension properties with accessors annotataed as @JvmStatic
KT-43034 AssertionError: Compiler fails with complicated tailrec + inline case
KT-43048 JVM_IR: Implement coroutines state clearing
KT-43050 JVM IR: incorrect mangling for method with type parameter with inline class bound in the signature
KT-43059 Different bridges behavior in class implementing Map<String, String> in JVM and JVM_IR
KT-43063 Redundant DefaultImpls delegate is generated in old JVM backend on explicit "duplicate" inheritance from interface
KT-43069 JVM: incorrect generic signature for method with implicit return type Nothing overriding a method from Collection
KT-43099 Tailrec call in not tail-call position leads to internal compiler error
KT-43106 JVM: custom remove in Iterator subclass results in a synthetic bridge
KT-43120 JVM: "Expected an object reference, but found ." caused by function which is passed as reference to suspend parameter
KT-43167 JVM IR, serialization: "No mapping for symbol: VALUE_PARAMETER INSTANCE_RECEIVER" with data class containing property defined in body
KT-43255 Verify error when inheriting from an abstract class implementing Collection with stub-like method in superclass
KT-43303 NI: False negative TYPE_INFERENCE_UPPER_BOUND_VIOLATED when inferred type argument is not a subtype of type parameter upper bound
KT-43333 AbstractMethodError when calling 'toArray' from Java on a Kotlin Collection with custom internal 'toArray'
KT-43334 AbstractMethodError when calling 'remove' from Java on a Kotlin Collection with custom internal 'remove'
KT-43342 [FIR2IR] No getter or backing field found for delegated member call
KT-43347 [FIR] Synthetic setter with unmatched parameter type isn't found
KT-43401 JVM_IR. Additional synchronized flag on JvmOverloads-generated adapter for Synchronized function
KT-43405 Turkish locale, Linux Mint: "NoSuchMethodError: 'int[] kotlin.jvm.internal.Intrinsics$Kotlin.intArrayOf(int[])'" with intArrayOf function call
KT-43460 JVM: redundant private setter is generated in case of multifile facade
KT-43473 "VerifyError: Bad type on operand stack" caused by operator get with optional argument in superclass when called via square brackets on subclass
KT-43518 JVM_IR. Additional strictfp flag on JvmOverloads-generated adapter for Strictfp function
KT-43749 "UnsupportedOperationException: Don't know how to generate outer expression: Closure" caused by Flow and collect method with function reference as a parameter
KT-43812 JVM IR: SAM wrapper class with generic supertype mentions missing type parameter in the signature
KT-43832 JVM IR: missing bridges for inheritance of class from interface in a complex generic diamond hierarchy
KT-43851 JVM IR: function call returning object instance is removed during constant propagation
KT-43864 JVM: "Assertion error after mandatory stack transformations: incorrect bytecode" with lateinit property of type T, which has a primitive type upperbound
KT-43887 Problem with FunctionReferenceLowering$FunctionReferenceBuilder in kotlin native
KT-43912 JVM internal error: Augment assignment and increment are not supported for local delegated properties and inline properties
KT-43938 NSME when calling 'kotlin.Number' methods on instance of Java class extending Kolin abstract class extending 'kotlin.Number'
KT-43942 org.jetbrains.kotlin.codegen.CompilationException: Back-end (JVM) Internal error: Failed to generate function
KT-43949 FIR: unresolved callable reference as lambda return
KT-43983 IllegalStateException: "Couldn't obtain compiled function body for public final suspend inline fun" after moving inline extension function to library
KT-44471 Fix failing script tests after switching to 1.5
KT-44474 Compiler expects sealed type inheritors from platform specific source-sets in when expression in common source-set
KT-44483 JVM IR: CCE on calling generic vararg function reference with Array expected type
KT-44527 Suspend function with kotlin.Result: ClassCastException class kotlin.Result cannot be cast to class ...
KT-44529 Inline class calls wrong iterator method in for loop
KT-44533 JVM IR: ClassFormatError on synthetic $suspendImpl method generated in interface for a @JvmDefault function
KT-44540 Regression in 1.4.30 in intellij-community: type mismatch for generic function call with generic Java class
KT-44546 NI: changed variable fixation order (that can lead to changed resolution)
KT-44550 KotlinBinaryClassCache leaks Kotlin plugin classloader on plugin unload
KT-44563 Type Inference loosing type annotations in lambda type expectation for function calls with block parameters
KT-44583 "Supertypes of the following classes cannot be resolved" error message gives no context
KT-44627 JVM IR: ACCIDENTAL_OVERRIDE when overriding a generic field where the type parameter has a primitive bound
KT-44631 "IndexOutOfBoundsException: Cannot pop operand off an empty stack" caused by a default param in inner class constructor which uses method or field from receiver
KT-44647 "IllegalAccessError: class TestKt tried to access private method" with String Builder get and inc operator
KT-44651 JVM / IR: "IllegalStateException: Illegal type substitutor" with if-else inside class constructor argument inside another if-else
KT-44660 Internal inline functions in companion object with inline class return type fails compilation
KT-44671 JVM_IR: ClassCastException: Result$Failure cannot be cast to Result with multithreaded coroutines
KT-44703 JVM / IR: "IllegalStateException: Unhandled special name in mangledNameFor" caused by a reference to inline class inside interface's companion with lazy initialization
KT-44712 JVM / IR: Behavior change after enabling with Mockito
KT-44714 Debugger / Coroutines: Local variables are trimmed out too aggressively
KT-44722 JVM IR: ClassCastException with inline class, let and bound function reference
KT-44726 JVM IR: Incorrect KType nullability for platform type reified as non-null
KT-44781 JVM IR: java.lang.NoSuchFieldError: $noName_0 when calling a crossinline lambda within a suspending lambda
KT-44798 JVM IR: Inherited platform declarations clash for class implementing both List and Set
KT-44801 1.4.30 JVM IR: Unbound symbols not allowed with anonymous object
KT-44803 FIR bootstrap: incorrect nullability is set for type alias-based type
KT-44827 Non-existing outer class is written in anonymous class for SAM wrapper in inline lambda with capture
KT-44837 JVM / IR: ClassCastException with Result object when it is used by a generic method in a suspend call
KT-44875 JVM_IR. hashCode call is generated on interface target in fun interface equality
KT-44878 JVM_IR: "IllegalStateException: Unexpected types" when checking non-nullable variable is in range between nullable ones with smart-cast
KT-44926 MPP: Actual typealias to compiled inline class incompatible with expect inline class
KT-44947 Sealed interfaces: Sealed fun interface leads to "NoWhenBranchMatchedException"
KT-44993 JVM IR: VerifyError on getfield with Kotlin generic field and elvis operator
KT-45008 JVM IR: hashCode is generated as invokeinterface if smart cast to interface is present
KT-45011 JVM / IR: "AssertionError: Unbound symbols not allowed"
KT-45022 IR: "AssertionError: Undefined variable referenced" from psi2ir caused by plusAssign operator of object
KT-45064 JVM IR: "java.lang.AssertionError: SyntheticAccessorLowering should not attempt to modify other files!" with member reference to property in another file with private setter
KT-45067 "IllegalArgumentException: Wildcard mast have a bound for annotation of WILDCARD_BOUND position" with BEAM SDK 2.27
KT-45069 JVM / IR: New SAM conversions mode fails when converting from Unit to Any
KT-45131 JVM / IR: "RuntimeException: Lambda, SAM or anonymous object should have only one constructor" caused by inline class that type cast to reified type parameter inside lambda in inline function
KT-45139 Inline class: AssertionError: Expected top level inline class
KT-45166 JVM / IR: "AbstractMethodError: Receiver class does not define or inherit an implementation of the resolved method of interface" caused by interface with suspend function
KT-45187 JVM / IR: ClassCastException caused by substituting generic type of vararg parameter with java.lang.Void
KT-45195 JVM IR: annotation methods are generated as default interface methods if allopen is used
KT-45243 "IllegalStateException: Lambdas shouldn't be visited by ESExpressionVisitor" caused by lambda inside kotlin.test.assertNotNull
KT-45259 JVM: ClassCastException caused by Result as lambda parameter type
KT-45292 AssertionError with recursive inline extension property
KT-45300 Deprecate super calls in public-api inline functions
KT-45409 Rename jspecify annotations’ package and default not null annotation
KT-45446 JVM / IR: NullPointerException caused by unreachable code and comparison
KT-45721 JVM / IR: "Unbound symbols not allowed" caused by class reference in sequence lambda
KT-45853 JVM / IR: "Accidental override" caused by inheriting Throwable.getCause from Java interface
KT-45861 Turning warnings into errors for calls with type parameters annotated by @OnlyInputTypes
KT-45865 JVM IR: "VerifyError: Bad type on operand stack" with enumValueOf on a value from a list of strings
KT-45868 JVM IR: ClassCastException with SAM function in init block when SAM is generated via invokedynamic
KT-45920 JVM IR: "Accidental override" on redefining get() in custom Map class
KT-45934 JVM IR: "java.lang.IllegalStateException: Function has no body" for class implementing interface by delegation
KT-45945 JVM / IR: "AssertionError: Unexpected variance in super type argument" with contravariance and intersection types
KT-45963 JVM / IR: "AbstractMethodError: Receiver class does not define or inherit an implementation of the resolved method" in Dokka tests
KT-45967 JVM IR: "IllegalAccessError" with invokedynamic to Java SAM over callable reference to private function
KT-45982 Wrong subtyping result on captured types with postponed type variables
KT-46007 JVM / IR: "ClassCastException: kotlin.Unit cannot be cast to java.lang.String" caused by default suspend function in interface
KT-46060 JVM IR: NullPointerException from RangeContainsLowering when contains is a @JvmStatic function in object
KT-46069 JVM IR: unbound type parameter on generic bound adapted function reference
KT-46092 JVM IR: AssertionError "Array type expected: @[FlexibleNullability] kotlin.CharArray?" on super call to Java constructor with primitive vararg
KT-46104 The message on inline -> value class migration should not say that inline classes are deprecated
KT-46131 Kotlin 1.5.0-RC errors when reading class file
KT-46160 JVM IR: IllegalAccessException at runtime for member reference to JvmMultifileClass member from stdlib
KT-46186 Type inference regression in Kotlin 1.5 with constrained generic return types
Docs & Examples
KT-45884 Incorrect description for JVM toUpperCase method
IDE
KT-33233 Use dependency of library to build built-ins in IDE, instead of loading them from the current classloader
KT-34023 kotlin.KotlinNullPointerException at org.jetbrains.kotlin.backend.common.FunctionsFromAnyGenerator.getPrimaryConstructorProperties(FunctionsFromAnyGenerator.kt:66)
KT-35947 KFunctionN.call is unresolved in IDE in Kotlin/JVM project
KT-41048 [FIR-IDE] Properly implement methods in KtFirPackageScope
KT-41671 Missing nullability information in properties using type inference from get()
KT-43824 KtLightClassForSourceDeclaration#isInheritor works in a different way than java implementation
KT-44128 IDE: Kotlin JVM record has incorrect property accessors as seen from Java
KT-44487 MPP, IDE: No error in IDE when sealed class inheritor from common source-set is not used in exhaustive when expression in platform source-set
KT-45254 Highlighting for files with certain errors appears only on second opening
KT-46097 Light classes: Incomplete nullability information for a getter method of a kotlin property defined in private constructor
IDE. Decompiler, Indexing, Stubs
KT-43699 IDE: Unresolved extension method from Java code for simple class with typealias and generics (IllegalStateException: Unknown type parameter)
KT-44756 Infinite "UpToDateStubIndexMismatch: PSI and index do not match." with IDEA 2021.1 EAP upon attempt to open "org.gradle.configurationcache" even they seem to be the same
IDE. Gradle Integration
KT-37127 Implement precise importing of platforms of root source sets (commonMain/commonTest) when hierarchical multiplatform support is enabled
KT-42048 KJS / Gradle integration: Could not determine the dependencies of task ':webApp:testPackageJson' in Android Studio 4.2 Canary 11
IDE. Gradle. Script
KT-46215 Dead lock on closing project during the import in IJ211 through ScriptDefinitionsManager
IDE. Inspections and Intentions
KT-23824 Return lifted out of if condition causes suspend tail call optimization to no longer apply
KT-38155 Lift assignment out of 'if' produces type mismatch without manually adding a semicolon
KT-44821 IDE: False positive NO_ELSE_IN_WHEN caused by sealed class and when in another module
KT-46088 [IDEA] Incorrect behavior of replace inline class with value class intention
IDE. Misc
KT-44675 Incorrect reference to resource into 202 plugin
IDE. Refactorings
KT-44079 Sealed Interfaces: Move refactoring should warn about violation of hierarchy restrictions
KT-44839 Sealed interfaces: move refactoring warnings works with "more freedom for sealed classes" rules for language level < 1.5
IDE. Script
KT-43288 Allow push notifications about script configuration /dependencies changes via the ScriptDefinitionsProvider EP
JavaScript
KT-39272 KJS / IR: Can't use javascript keywords as JsName
KT-41650 JS IR BE: default should be a reserved identifier
KT-42176 KJS / IR: Interface default method in sub-interface not resolved correctly from extension on super-interface
KT-44103 [JSIR] TypeError when bumping from 1.4.20 to 1.4.30-M1
KT-44180 KJS / IR: NPE in ConstTransformer of compileDevelopmentExecutableKotlinJs/compileProductionExecutableKotlinJs tasks
KT-44415 Kotlin/JS with IR and kotlin-react: "too much recursion" error in runtime in browser
KT-44433 KJS IR: support function interfaces with suspend member
KT-44469 KJS / IR: Incorrect export functions with bridges
KT-44718 MPP/ KJS: "IllegalStateException: Unsupported operation" with serialization plugin and incremental compilation
KT-44796 KJS / IR: default parameter of function with @JsName leads to "RangeError: Maximum call stack size exceeded"
KT-45059 KJS / IR: Add possibility for runtime diagnostics of DCE result
Libraries
KT-12109 Add stdlib method that combines mapNotNull() and first/firstOrNull()
KT-17344 Include kotlin-reflect to resulting jar if "-include-runtime" is specified
KT-43220 -include-runtime should add .kotlin_builtins to the output
KT-43704 Illegal reflective access by com.intellij.util.ReflectionUtil to method java.util.ResourceBundle.setParent(java.util.ResourceBundle)
KT-44078 Do not include module-info.class of kotlin-stdlib.jar to the resulting jar with -include-runtime
KT-44232 CLI: do not pass -noverify to java process starting from JDK 13
KT-45566 JDK 16 - e: java.lang.NoClassDefFoundError: Could not initialize class org.jetbrains.kotlin.com.intellij.pom.java.LanguageLevel
Tools. CLI. Native
KT-43874 Native / CLI: provide a way to show difference between Jvm and Native compilers
Tools. Compiler Plugins
KT-45783 Serialization: "AnalyzerException: Expected an object reference, but found I" caused by JvmInline and Serializable annotations
Tools. Gradle
KT-31027 java.lang.NoSuchMethodError: No static method hashCode(Z)I in class Ljava/lang/Boolean; or its super classes (declaration of 'java.lang.Boolean' appears in /system/framework/core-libart.jar)
KT-43605 Kotlin Gradle Plugin 1.4.20 undeclared system property reads cause problems with Gradle configuration cache enabled
KT-44204 Kotlin Gradle Plugin 1.4.21 makes impossible to use ANTLR in other plugins
KT-44909 Kapt: ReenteringLazyValueComputationException without stacktrace caused by when expression with sealed class function without explicit return type
KT-45168 KAPT: Java stubs generated for Kotlin files generated by annotation processors