Update kotlin.version to v1.5.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.jetbrains.kotlin:kotlin-maven-plugin	1.4.30 -> 1.5.0
org.jetbrains.kotlin:kotlin-reflect (source)	1.4.30 -> 1.5.0
org.jetbrains.kotlin:kotlin-stdlib (source)	1.4.30 -> 1.5.0

---

Release Notes

JetBrains/kotlin

v1.5.0

Compare Source

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Changelog

Backend. Native

• KT-42053 Support compiler caches for linux_x64
• KT-43690 Support compiler caches for ios_arm64

Backend. IR

• KT-42684 StackOverflowError on recursive inline arguments in inline fun

Compiler

New Features

• KT-28791 Kotlin serialization with inline classes
• KT-30222 Support JVM target version selection in Kotlin bytecode tool window
• KT-41884 Support 'file' target for JvmSynthetic annotation
• KT-43677 Support for Java records
• KT-43920 Support loading binary Java annotations on fields
• KT-44278 Generate SAM-converted lambdas and function references using 'invokedynamic' on JDK 1.8+
• KT-44650 Deprecate JVM target version 1.6
• KT-44787 Suspend functions in fun interfaces
• KT-44865 Allow to declare protected constructors in sealed classes
• KT-44869 Compiling sealed interface with version less than 1.5: error message from future could be provided

Performance Improvements

• KT-6336 Optimize generation of local functions
• KT-7307 Optimize infix call of String.plus
• KT-18692 Optimize '<optimizable_range> step x' for-in loop
• 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-16221 Support in/!in suspend operators
• KT-16282 "Cannot pop operand off an empty stack" for plusAssign with default parameters in setter operator
• KT-16445 java.lang.VerifyError: Bad type on operand stack when delegating an interface through a private reified function inside an object
• KT-16520 Invalid bytecode semantics for set call by convention with default parameters
• KT-16567 Inliner creates redundant objects on source inlining
• KT-16752 Delegating function interface to function reference does not work
• KT-17554 Incorrect cast to Unit generated on annotated when-expression with a single-branch if inside
• KT-17738 Java cannot extend class implementing kotlin.collections.Map
• KT-17753 Strange behavior of if and return statements
• KT-18583 "ISE: Recursive call in a lazy value" for generic sealed class with nested subclass in a when(this) with inferred return type
• KT-19861 "IllegalStateException: Label wasn't found during iterating through instructions" for plusAssign with safe call
• KT-20306 Make 'when' over an 'expect' enum class non-exhaustive
• KT-20869 kotlin.jvm.internal.DefaultConstructorMarker should be public
• KT-20996 IllegalStateException: Cannot get FQ name of local class: class in metadata serialization for common code
• KT-21014 Incorrect bytecode generated for 'PrimitiveArray::size'
• KT-21092 Reference javaClass for generic property: "couldn't transform method node: get()"
• 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-30629 java.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-35166 NoSuchMethodError 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-35419 Failed 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-37704 Incorrect SMAP syntax
• 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-43569 FIR: inapplicable candidate(s): kotlin/collections/set
• KT-43616 [FIR] Nullable type parameter-based type after merge in if
• KT-43669 FIR: No real overrides for FUN IR_EXTERNAL_DECLARATION_STUB
• KT-43682 Inline extension method of a multifile library inline class not found
• KT-43687 FIR: UnusedChecker does not take annotation arguments into account
• KT-43688 FIR: unused checker doesn't handle invokes properly
• 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-43915 Back-end (JVM) Internal error: wrong bytecode generated for default method
• 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-43984 FIR: recursion in overridden symbols
• KT-43984 FIR: recursion in overridden symbols
• KT-44010 FIR: Inapplicable constructor due to an unresolved reference
• KT-44030 FIR2IR: uncached type parameters in delegated property
• KT-44032 FIR2IR: uncached type parameters in Java field
• KT-44050 FIR: anonymous object as IR parent
• KT-44054 FIR2IR: incorrect IR origin for substituted override function
• KT-44058 CompilationException: open suspend fun with @​JvmStatic in open class companion
• KT-44069 please remove deprecated usages
• KT-44066 FIR Java: override ambiguity with vararg value type
• KT-44114 CompilationException when inlining a extension suspend function declared in interface companion with 'this' reference to extension receiver
• KT-44131 "UnsupportedOperationException: Don't know how to generate outer expression: Closure" when using suspend lambda and a function reference
• KT-44140 JVM IR: compilation of kotlin.Result crashes with IOOBE while generating toString-impl
• KT-44141 JVM IR: "ISE: There should be underlying type for inline class type" on usage of type parameter with Result upper bound inside a lambda
• KT-44192 Allow a greater number of constants in an enum class
• KT-44202 "ClassCastException" when getting delegated property with inline class and Any/Any? type
• KT-44210 KJS / IR: "AssertionError: Undefined parameter referenced: defined" caused by plus assign operators in build blocks
• KT-44233 [IR] Collection Stub generation not correctly considering java.util Collection iterators
• KT-44234 Private companion property with explicit setter generates invalid bytecode
• KT-44269 "[TAILREC_ON_VIRTUAL_MEMBER_ERROR] Tailrec is not allowed on open members" with Spring annotation and private tailrec function
• KT-44284 Make Kotlin binaries publicly unavailable (set KotlinCompilerVersion.IS_PRE_RELEASE = true)
• KT-44316 ReenteringLazyValueComputationException when analyzing complex lazy delegate
• KT-44347 Back-end (JVM) Internal error: Couldn't transform method node for suspend function with wrong local for Continuation
• KT-44368 "IllegalStateException: Error type encountered" when inlining 'invoke' operator without enough information on type variable
• KT-44412 JVM IR backend fails to compile break in condition of do while
• KT-44420 False NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATION with 1.4.30-RC
• KT-44429 JVM IR: unnecessary integer unboxing leads to NPE when using mockito-kotlin
• KT-44439 Type inference of generic types failing java interop
• KT-44440 Too many Nothings in inferred type
• 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-37702 Code analysis speed: on-the-fly analysis diagnostics reporting
• 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.

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[oryan-block]

Will have to wait for kotlin coroutines 1.5.x final release.