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Support generic Kotlin inline value classes in parameterized tests #5145

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@Ogu1208
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@Ogu1208 Ogu1208 commented Nov 8, 2025 •
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Resolves: #5081

Overview

This PR builds upon @marcphilipp's POC marc/5081-kotlin-value-class-support to add support for generic inline value classes in @ParameterizedTest methods when kotlin-reflect is on the classpath.

Supported: Generic Inline Value Classes

  • kotlin.Result<T>
  • Custom generic containers (e.g., Container<T>)
  • These work because they compile to Object in JVM, bypassing strict type validation

Not Yet Supported: Primitive-Wrapper Inline Value Classes

  • UInt, ULong, UShort, UByte
  • Custom value classes wrapping primitives (e.g., UserId(Long), Email(String))
  • These fail because Kotlin compiles them to primitives (int, long, etc.), causing JUnit's type validation to fail before reaching the invocation logic
  • Supporting these would require modifications to JUnit's core type validation system

Changes

Implementation

  • Extended MethodReflectionUtils.invoke() to detect and handle inline value class arguments
  • Added KotlinReflectionUtils.isInstanceOfInlineType() to detect @JvmInline annotated instances
  • Added KotlinReflectionUtils.invokeKotlinFunction() to invoke Kotlin functions with inline value class parameters
  • Renamed KotlinSuspendingFunctionUtils → KotlinFunctionUtils to support both suspending and regular functions
  • Added @API annotations to new public methods

Testing

  • GenericInlineValueClassTests: Verifies working cases (Result, nullable Result, custom generic containers)
  • PrimitiveWrapperInlineValueClassTests (@disabled): Documents current limitations with primitive wrappers
  • Removed redundant test files from POC

I hereby agree to the terms of the JUnit Contributor License Agreement.

Definition of Done

@Ogu1208
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Ogu1208 commented Nov 8, 2025

Hi @marcphilipp 👋

Sorry for the delay — this is actually my first attempt at contributing to an open-source project like JUnit,
so I wanted to take a bit of extra time to make sure I understood everything properly before opening this draft.

As discussed in #5081, I’ve based this Draft PR on the marc/5081-kotlin-value-class-support POC branch
and added extended test coverage for Kotlin inline value class parameter resolution.

There are still a few points I’d like to clarify, since I might have misunderstood parts of the earlier discussion:

  1. Is the intention for this issue to eventually cover arbitrary @JvmInline classes beyond kotlin.Result?
    (From your earlier comments, it seems like @TWiStErRob might be leading that implementation effort.)
  2. For this PR, is it most helpful if I focus solely on test coverage and verification for now,
    or would it be okay to start exploring how kotlin-reflect could generalize the current handling?

I’m happy to adjust the scope based on your guidance.

@Ogu1208
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Ogu1208 commented Nov 12, 2025

@marcphilipp 👋
Just wanted to kindly follow up on this — could you please take a look when you have a chance?

marcphilipp
marcphilipp requested changes Nov 18, 2025
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Please add an entry to the 6.1.0-M2 release notes.

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testlens-app bot commented Dec 10, 2025 •
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🚨 TestLens detected 2 failed tests 🚨

Here is what you can do:

  1. Inspect the test failures carefully.
  2. If you are convinced that some of the tests are flaky, you can mute them below.
  3. Finally, trigger a rerun by checking the rerun checkbox.

Test Summary

Check Task Test Runs
CI / macOS :platform-tooling-support-tests:test KotlinCoroutinesTests > failsWithHelpfulErrorMessageWhenKotlinReflectIsMissing(Path, OutputFiles) 🚫 ❌
CI / macOS :platform-tooling-support-tests:test KotlinCoroutinesTests > failsWithHelpfulErrorMessageWhenKotlinxCoroutinesIsMissing(Path, OutputFiles) 🚫 ❌

🏷️ Commit: f56ddcb
▶️ Tests: 173 executed
⚪️ Checks: 14/14 completed

Test Failures (first 5 of 6)

KotlinCoroutinesTests > failsWithHelpfulErrorMessageWhenKotlinReflectIsMissing(Path, OutputFiles) (:platform-tooling-support-tests:test in macOS) 
java.lang.AssertionError: 
Expecting actual:
  "To honour the JVM settings for this build a single-use Daemon process will be forked. For more on this, please refer to https://docs.gradle.org/9.2.1/userguide/gradle_daemon.html#sec:disabling_the_daemon in the Gradle documentation.
Daemon will be stopped at the end of the build 
> Task :checkKotlinGradlePluginConfigurationErrors SKIPPED
> Task :compileKotlin NO-SOURCE
> Task :compileJava NO-SOURCE
> Task :processResources NO-SOURCE
> Task :classes UP-TO-DATE
> Task :jar
> Task :assemble
> Task :processTestResources NO-SOURCE
> Task :compileTestKotlin
> Task :compileTestJava NO-SOURCE
> Task :testClasses UP-TO-DATE

> Task :test

JUnit Jupiter > initializationError FAILED
    org.junit.platform.launcher.core.DiscoveryIssueException: TestEngine with ID 'junit-jupiter' encountered a critical issue during test discovery:

    (1) [ERROR] ClassSelector [className = 'com.example.project.SuspendFunctionTests', classLoader = jdk.internal.loader.ClassLoaders$AppClassLoader@42110406] resolution failed
        Source: ClassSource [className = 'com.example.project.SuspendFunctionTests', filePosition = null]
                at com.example.project.SuspendFunctionTests.<no-method>(SourceFile:0)
        Cause: org.junit.platform.commons.PreconditionViolationException: Kotlin function [public final java.lang.Object com.example.project.SuspendFunctionTests.test(kotlin.coroutines.Continuation<? super kotlin.Unit>)] requires org.jetbrains.kotlin:kotlin-reflect to be on the classpath or module path. Please add a corresponding dependency.
    	at org.junit.platform.commons.util.Preconditions.condition(Preconditions.java:339)
    	at org.junit.platform.commons.util.KotlinReflectionUtils.requireDependency(KotlinReflectionUtils.java:189)
    	at org.junit.platform.commons.util.KotlinReflectionUtils.requireKotlinReflect(KotlinReflectionUtils.java:181)
    	at org.junit.platform.commons.util.KotlinReflectionUtils.getKotlinSuspendingFunctionReturnType(KotlinReflectionUtils.java:140)
    	at org.junit.jupiter.engine.support.MethodReflectionUtils.getReturnType(MethodReflectionUtils.java:35)
    	at org.junit.jupiter.engine.discovery.predicates.IsTestableMethod.lambda$hasVoidReturnType$0(IsTestableMethod.java:68)
    	at org.junit.platform.engine.support.discovery.DiscoveryIssueReporter.lambda$createReportingCondition$0(DiscoveryIssueReporter.java:121)
    	at org.junit.platform.engine.support.discovery.DiscoveryIssueReporter$Condition.lambda$and$0(DiscoveryIssueReporter.java:171)
    	at org.junit.jupiter.engine.discovery.predicates.IsTestableMethod.test(IsTestableMethod.java:49)
    	at org.junit.jupiter.engine.discovery.predicates.IsTestMethod.test(IsTestMethod.java:24)
    	at org.junit.jupiter.engine.discovery.predicates.IsTestableMethod.test(IsTestableMethod.java:32)
    	at java.base/java.util.function.Predicate.lambda$or$2(Predicate.java:101)
    	at java.base/java.util.function.Predicate.lambda$or$2(Predicate.java:101)
    	at org.junit.platform.commons.util.ReflectionUtils.findMethod(ReflectionUtils.java:1537)
    	at org.junit.platform.commons.util.ReflectionUtils.isMethodPresent(ReflectionUtils.java:1403)
    	at org.junit.jupiter.engine.discovery.predicates.TestClassPredicates.hasTestOrTestFactoryOrTestTemplateMethods(TestClassPredicates.java:107)
    	at org.junit.jupiter.engine.discovery.predicates.TestClassPredicates.looksLikeIntendedTestClass(TestClassPredicates.java:82)
    	at org.junit.jupiter.engine.discovery.predicates.TestClassPredicates.looksLikeIntendedTestClass(TestClassPredicates.java:76)
    	at org.junit.jupiter.engine.discovery.ClassSelectorResolver.isAcceptedStandaloneTestClass(ClassSelectorResolver.java:114)
    	at org.junit.jupiter.engine.discovery.ClassSelectorResolver.resolveStandaloneTestClass(ClassSelectorResolver.java:105)
    	at org.junit.jupiter.engine.discovery.ClassSelectorResolver.resolve(ClassSelectorResolver.java:101)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.lambda$resolve$0(EngineDiscoveryRequestResolution.java:137)
    	at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
    	at java.base/java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1602)
    	at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:129)
    	at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:527)
    	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:513)
    	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
    	at java.base/java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150)
    	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
    	at java.base/java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:647)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolve(EngineDiscoveryRequestResolution.java:191)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolve(EngineDiscoveryRequestResolution.java:128)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolveCompletely(EngineDiscoveryRequestResolution.java:94)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.run(EngineDiscoveryRequestResolution.java:85)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolver.resolve(EngineDiscoveryRequestResolver.java:150)
    	at org.junit.jupiter.engine.discovery.DiscoverySelectorResolver.resolveSelectors(DiscoverySelectorResolver.java:62)
    	at org.junit.jupiter.engine.JupiterTestEngine.discover(JupiterTestEngine.java:74)
    	at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discoverEngineRoot(EngineDiscoveryOrchestrator.java:195)
    	at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discoverSafely(EngineDiscoveryOrchestrator.java:174)
    	at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discover(EngineDiscoveryOrchestrator.java:119)
    	at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discover(EngineDiscoveryOrchestrator.java:84)
    	at org.junit.platform.launcher.core.DefaultLauncher.discover(DefaultLauncher.java:119)
    	at org.junit.platform.launcher.core.DefaultLauncher.lambda$execute$1(DefaultLauncher.java:112)
    	at java.base/java.util.Optional.orElseGet(Optional.java:364)
    	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:109)
    	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:93)
    	at org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:48)
    	at org.junit.platform.launcher.core.InterceptingLauncher.lambda$execute$0(InterceptingLauncher.java:41)
    	at org.junit.platform.launcher.core.ClasspathAlignmentCheckingLauncherInterceptor.intercept(ClasspathAlignmentCheckingLauncherInterceptor.java:25)
    	at org.junit.platform.launcher.core.InterceptingLauncher.execute(InterceptingLauncher.java:40)
    	at org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:48)
    	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:135)
    	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$000(JUnitPlatformTestClassProcessor.java:110)
    	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:104)
    	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:64)
    	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
    	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
    	at org.gradle.internal.dispatch.MethodInvocation.invokeOn(MethodInvocation.java:77)
    	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:28)
    	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:19)
    	at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33)
    	at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:88)
    	at jdk.proxy1/jdk.proxy1.$Proxy4.stop(Unknown Source)
    	at org.gradle.api.internal.tasks.testing.worker.TestWorker$3.run(TestWorker.java:194)
    	at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:126)
    	at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:103)
    	at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:63)
    	at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56)
    	at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:122)
    	at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:72)
    	at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69)
    	at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74)

> Task :test FAILED
3 actionable tasks: 3 executed
"
to contain:
  "PreconditionViolationException: Kotlin suspending function [public final java.lang.Object com.example.project.SuspendFunctionTests.test(kotlin.coroutines.Continuation<? super kotlin.Unit>)] requires org.jetbrains.kotlin:kotlin-reflect to be on the classpath or module path. Please add a corresponding dependency." 
	at platform.tooling.support.tests.KotlinCoroutinesTests.failsWithHelpfulErrorMessageWhenKotlinReflectIsMissing(KotlinCoroutinesTests.java:66)
KotlinCoroutinesTests > failsWithHelpfulErrorMessageWhenKotlinReflectIsMissing(Path, OutputFiles) (:platform-tooling-support-tests:test in macOS) 
java.lang.AssertionError: 
Expecting actual:
  "To honour the JVM settings for this build a single-use Daemon process will be forked. For more on this, please refer to https://docs.gradle.org/9.2.1/userguide/gradle_daemon.html#sec:disabling_the_daemon in the Gradle documentation.
Daemon will be stopped at the end of the build 
> Task :checkKotlinGradlePluginConfigurationErrors SKIPPED
> Task :compileKotlin NO-SOURCE
> Task :compileJava NO-SOURCE
> Task :processResources NO-SOURCE
> Task :classes UP-TO-DATE
> Task :jar
> Task :assemble
> Task :processTestResources NO-SOURCE
> Task :compileTestKotlin
> Task :compileTestJava NO-SOURCE
> Task :testClasses UP-TO-DATE

> Task :test FAILED

JUnit Jupiter > initializationError FAILED
    org.junit.platform.launcher.core.DiscoveryIssueException: TestEngine with ID 'junit-jupiter' encountered a critical issue during test discovery:

    (1) [ERROR] ClassSelector [className = 'com.example.project.SuspendFunctionTests', classLoader = jdk.internal.loader.ClassLoaders$AppClassLoader@42110406] resolution failed
        Source: ClassSource [className = 'com.example.project.SuspendFunctionTests', filePosition = null]
                at com.example.project.SuspendFunctionTests.<no-method>(SourceFile:0)
        Cause: org.junit.platform.commons.PreconditionViolationException: Kotlin function [public final java.lang.Object com.example.project.SuspendFunctionTests.test(kotlin.coroutines.Continuation<? super kotlin.Unit>)] requires org.jetbrains.kotlin:kotlin-reflect to be on the classpath or module path. Please add a corresponding dependency.
    	at org.junit.platform.commons.util.Preconditions.condition(Preconditions.java:339)
    	at org.junit.platform.commons.util.KotlinReflectionUtils.requireDependency(KotlinReflectionUtils.java:189)
    	at org.junit.platform.commons.util.KotlinReflectionUtils.requireKotlinReflect(KotlinReflectionUtils.java:181)
    	at org.junit.platform.commons.util.KotlinReflectionUtils.getKotlinSuspendingFunctionReturnType(KotlinReflectionUtils.java:140)
    	at org.junit.jupiter.engine.support.MethodReflectionUtils.getReturnType(MethodReflectionUtils.java:35)
    	at org.junit.jupiter.engine.discovery.predicates.IsTestableMethod.lambda$hasVoidReturnType$0(IsTestableMethod.java:68)
    	at org.junit.platform.engine.support.discovery.DiscoveryIssueReporter.lambda$createReportingCondition$0(DiscoveryIssueReporter.java:121)
    	at org.junit.platform.engine.support.discovery.DiscoveryIssueReporter$Condition.lambda$and$0(DiscoveryIssueReporter.java:171)
    	at org.junit.jupiter.engine.discovery.predicates.IsTestableMethod.test(IsTestableMethod.java:49)
    	at org.junit.jupiter.engine.discovery.predicates.IsTestMethod.test(IsTestMethod.java:24)
    	at org.junit.jupiter.engine.discovery.predicates.IsTestableMethod.test(IsTestableMethod.java:32)
    	at java.base/java.util.function.Predicate.lambda$or$2(Predicate.java:101)
    	at java.base/java.util.function.Predicate.lambda$or$2(Predicate.java:101)
    	at org.junit.platform.commons.util.ReflectionUtils.findMethod(ReflectionUtils.java:1537)
    	at org.junit.platform.commons.util.ReflectionUtils.isMethodPresent(ReflectionUtils.java:1403)
    	at org.junit.jupiter.engine.discovery.predicates.TestClassPredicates.hasTestOrTestFactoryOrTestTemplateMethods(TestClassPredicates.java:107)
    	at org.junit.jupiter.engine.discovery.predicates.TestClassPredicates.looksLikeIntendedTestClass(TestClassPredicates.java:82)
    	at org.junit.jupiter.engine.discovery.predicates.TestClassPredicates.looksLikeIntendedTestClass(TestClassPredicates.java:76)
    	at org.junit.jupiter.engine.discovery.ClassSelectorResolver.isAcceptedStandaloneTestClass(ClassSelectorResolver.java:114)
    	at org.junit.jupiter.engine.discovery.ClassSelectorResolver.resolveStandaloneTestClass(ClassSelectorResolver.java:105)
    	at org.junit.jupiter.engine.discovery.ClassSelectorResolver.resolve(ClassSelectorResolver.java:101)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.lambda$resolve$0(EngineDiscoveryRequestResolution.java:137)
    	at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
    	at java.base/java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1602)
    	at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:129)
    	at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:527)
    	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:513)
    	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
    	at java.base/java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150)
    	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
    	at java.base/java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:647)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolve(EngineDiscoveryRequestResolution.java:191)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolve(EngineDiscoveryRequestResolution.java:128)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolveCompletely(EngineDiscoveryRequestResolution.java:94)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.run(EngineDiscoveryRequestResolution.java:85)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolver.resolve(EngineDiscoveryRequestResolver.java:150)
    	at org.junit.jupiter.engine.discovery.DiscoverySelectorResolver.resolveSelectors(DiscoverySelectorResolver.java:62)
    	at org.junit.jupiter.engine.JupiterTestEngine.discover(JupiterTestEngine.java:74)
    	at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discoverEngineRoot(EngineDiscoveryOrchestrator.java:195)
    	at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discoverSafely(EngineDiscoveryOrchestrator.java:174)
    	at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discover(EngineDiscoveryOrchestrator.java:119)
    	at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discover(EngineDiscoveryOrchestrator.java:84)
    	at org.junit.platform.launcher.core.DefaultLauncher.discover(DefaultLauncher.java:119)
    	at org.junit.platform.launcher.core.DefaultLauncher.lambda$execute$1(DefaultLauncher.java:112)
    	at java.base/java.util.Optional.orElseGet(Optional.java:364)
    	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:109)
    	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:93)
    	at org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:48)
    	at org.junit.platform.launcher.core.InterceptingLauncher.lambda$execute$0(InterceptingLauncher.java:41)
    	at org.junit.platform.launcher.core.ClasspathAlignmentCheckingLauncherInterceptor.intercept(ClasspathAlignmentCheckingLauncherInterceptor.java:25)
    	at org.junit.platform.launcher.core.InterceptingLauncher.execute(InterceptingLauncher.java:40)
    	at org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:48)
    	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:135)
    	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$000(JUnitPlatformTestClassProcessor.java:110)
    	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:104)
    	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:64)
    	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
    	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
    	at org.gradle.internal.dispatch.MethodInvocation.invokeOn(MethodInvocation.java:77)
    	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:28)
    	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:19)
    	at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33)
    	at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:88)
    	at jdk.proxy1/jdk.proxy1.$Proxy4.stop(Unknown Source)
    	at org.gradle.api.internal.tasks.testing.worker.TestWorker$3.run(TestWorker.java:194)
    	at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:126)
    	at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:103)
    	at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:63)
    	at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56)
    	at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:122)
    	at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:72)
    	at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69)
    	at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74)
3 actionable tasks: 3 executed
"
to contain:
  "PreconditionViolationException: Kotlin suspending function [public final java.lang.Object com.example.project.SuspendFunctionTests.test(kotlin.coroutines.Continuation<? super kotlin.Unit>)] requires org.jetbrains.kotlin:kotlin-reflect to be on the classpath or module path. Please add a corresponding dependency." 
	at platform.tooling.support.tests.KotlinCoroutinesTests.failsWithHelpfulErrorMessageWhenKotlinReflectIsMissing(KotlinCoroutinesTests.java:66)
KotlinCoroutinesTests > failsWithHelpfulErrorMessageWhenKotlinReflectIsMissing(Path, OutputFiles) (:platform-tooling-support-tests:test in macOS) 
java.lang.AssertionError: 
Expecting actual:
  "To honour the JVM settings for this build a single-use Daemon process will be forked. For more on this, please refer to https://docs.gradle.org/9.2.1/userguide/gradle_daemon.html#sec:disabling_the_daemon in the Gradle documentation.
Daemon will be stopped at the end of the build 
> Task :checkKotlinGradlePluginConfigurationErrors SKIPPED
> Task :compileKotlin NO-SOURCE
> Task :compileJava NO-SOURCE
> Task :processResources NO-SOURCE
> Task :classes UP-TO-DATE
> Task :jar
> Task :assemble
> Task :processTestResources NO-SOURCE
> Task :compileTestKotlin
> Task :compileTestJava NO-SOURCE
> Task :testClasses UP-TO-DATE

> Task :test FAILED

JUnit Jupiter > initializationError FAILED
    org.junit.platform.launcher.core.DiscoveryIssueException: TestEngine with ID 'junit-jupiter' encountered a critical issue during test discovery:

    (1) [ERROR] ClassSelector [className = 'com.example.project.SuspendFunctionTests', classLoader = jdk.internal.loader.ClassLoaders$AppClassLoader@42110406] resolution failed
        Source: ClassSource [className = 'com.example.project.SuspendFunctionTests', filePosition = null]
                at com.example.project.SuspendFunctionTests.<no-method>(SourceFile:0)
        Cause: org.junit.platform.commons.PreconditionViolationException: Kotlin function [public final java.lang.Object com.example.project.SuspendFunctionTests.test(kotlin.coroutines.Continuation<? super kotlin.Unit>)] requires org.jetbrains.kotlin:kotlin-reflect to be on the classpath or module path. Please add a corresponding dependency.
    	at org.junit.platform.commons.util.Preconditions.condition(Preconditions.java:339)
    	at org.junit.platform.commons.util.KotlinReflectionUtils.requireDependency(KotlinReflectionUtils.java:189)
    	at org.junit.platform.commons.util.KotlinReflectionUtils.requireKotlinReflect(KotlinReflectionUtils.java:181)
    	at org.junit.platform.commons.util.KotlinReflectionUtils.getKotlinSuspendingFunctionReturnType(KotlinReflectionUtils.java:140)
    	at org.junit.jupiter.engine.support.MethodReflectionUtils.getReturnType(MethodReflectionUtils.java:35)
    	at org.junit.jupiter.engine.discovery.predicates.IsTestableMethod.lambda$hasVoidReturnType$0(IsTestableMethod.java:68)
    	at org.junit.platform.engine.support.discovery.DiscoveryIssueReporter.lambda$createReportingCondition$0(DiscoveryIssueReporter.java:121)
    	at org.junit.platform.engine.support.discovery.DiscoveryIssueReporter$Condition.lambda$and$0(DiscoveryIssueReporter.java:171)
    	at org.junit.jupiter.engine.discovery.predicates.IsTestableMethod.test(IsTestableMethod.java:49)
    	at org.junit.jupiter.engine.discovery.predicates.IsTestMethod.test(IsTestMethod.java:24)
    	at org.junit.jupiter.engine.discovery.predicates.IsTestableMethod.test(IsTestableMethod.java:32)
    	at java.base/java.util.function.Predicate.lambda$or$2(Predicate.java:101)
    	at java.base/java.util.function.Predicate.lambda$or$2(Predicate.java:101)
    	at org.junit.platform.commons.util.ReflectionUtils.findMethod(ReflectionUtils.java:1537)
    	at org.junit.platform.commons.util.ReflectionUtils.isMethodPresent(ReflectionUtils.java:1403)
    	at org.junit.jupiter.engine.discovery.predicates.TestClassPredicates.hasTestOrTestFactoryOrTestTemplateMethods(TestClassPredicates.java:107)
    	at org.junit.jupiter.engine.discovery.predicates.TestClassPredicates.looksLikeIntendedTestClass(TestClassPredicates.java:82)
    	at org.junit.jupiter.engine.discovery.predicates.TestClassPredicates.looksLikeIntendedTestClass(TestClassPredicates.java:76)
    	at org.junit.jupiter.engine.discovery.ClassSelectorResolver.isAcceptedStandaloneTestClass(ClassSelectorResolver.java:114)
    	at org.junit.jupiter.engine.discovery.ClassSelectorResolver.resolveStandaloneTestClass(ClassSelectorResolver.java:105)
    	at org.junit.jupiter.engine.discovery.ClassSelectorResolver.resolve(ClassSelectorResolver.java:101)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.lambda$resolve$0(EngineDiscoveryRequestResolution.java:137)
    	at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
    	at java.base/java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1602)
    	at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:129)
    	at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:527)
    	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:513)
    	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
    	at java.base/java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150)
    	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
    	at java.base/java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:647)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolve(EngineDiscoveryRequestResolution.java:191)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolve(EngineDiscoveryRequestResolution.java:128)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolveCompletely(EngineDiscoveryRequestResolution.java:94)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.run(EngineDiscoveryRequestResolution.java:85)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolver.resolve(EngineDiscoveryRequestResolver.java:150)
    	at org.junit.jupiter.engine.discovery.DiscoverySelectorResolver.resolveSelectors(DiscoverySelectorResolver.java:62)
    	at org.junit.jupiter.engine.JupiterTestEngine.discover(JupiterTestEngine.java:74)
    	at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discoverEngineRoot(EngineDiscoveryOrchestrator.java:195)
    	at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discoverSafely(EngineDiscoveryOrchestrator.java:174)
    	at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discover(EngineDiscoveryOrchestrator.java:119)
    	at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discover(EngineDiscoveryOrchestrator.java:84)
    	at org.junit.platform.launcher.core.DefaultLauncher.discover(DefaultLauncher.java:119)
    	at org.junit.platform.launcher.core.DefaultLauncher.lambda$execute$1(DefaultLauncher.java:112)
    	at java.base/java.util.Optional.orElseGet(Optional.java:364)
    	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:109)
    	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:93)
    	at org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:48)
    	at org.junit.platform.launcher.core.InterceptingLauncher.lambda$execute$0(InterceptingLauncher.java:41)
    	at org.junit.platform.launcher.core.ClasspathAlignmentCheckingLauncherInterceptor.intercept(ClasspathAlignmentCheckingLauncherInterceptor.java:25)
    	at org.junit.platform.launcher.core.InterceptingLauncher.execute(InterceptingLauncher.java:40)
    	at org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:48)
    	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:135)
    	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$000(JUnitPlatformTestClassProcessor.java:110)
    	at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:104)
    	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:64)
    	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
    	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
    	at org.gradle.internal.dispatch.MethodInvocation.invokeOn(MethodInvocation.java:77)
    	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:28)
    	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:19)
    	at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33)
    	at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:88)
    	at jdk.proxy1/jdk.proxy1.$Proxy4.stop(Unknown Source)
    	at org.gradle.api.internal.tasks.testing.worker.TestWorker$3.run(TestWorker.java:194)
    	at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:126)
    	at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:103)
    	at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:63)
    	at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56)
    	at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:122)
    	at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:72)
    	at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69)
    	at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74)
3 actionable tasks: 3 executed
"
to contain:
  "PreconditionViolationException: Kotlin suspending function [public final java.lang.Object com.example.project.SuspendFunctionTests.test(kotlin.coroutines.Continuation<? super kotlin.Unit>)] requires org.jetbrains.kotlin:kotlin-reflect to be on the classpath or module path. Please add a corresponding dependency." 
	at platform.tooling.support.tests.KotlinCoroutinesTests.failsWithHelpfulErrorMessageWhenKotlinReflectIsMissing(KotlinCoroutinesTests.java:66)
KotlinCoroutinesTests > failsWithHelpfulErrorMessageWhenKotlinxCoroutinesIsMissing(Path, OutputFiles) (:platform-tooling-support-tests:test in macOS) 
java.lang.AssertionError: 
Expecting actual:
  "To honour the JVM settings for this build a single-use Daemon process will be forked. For more on this, please refer to https://docs.gradle.org/9.2.1/userguide/gradle_daemon.html#sec:disabling_the_daemon in the Gradle documentation.
Daemon will be stopped at the end of the build 
> Task :checkKotlinGradlePluginConfigurationErrors SKIPPED
> Task :compileKotlin NO-SOURCE
> Task :compileJava NO-SOURCE
> Task :processResources NO-SOURCE
> Task :classes UP-TO-DATE
> Task :jar
> Task :assemble
> Task :processTestResources NO-SOURCE
> Task :compileTestKotlin
> Task :compileTestJava NO-SOURCE
> Task :testClasses UP-TO-DATE

> Task :test FAILED

SuspendFunctionTests > test() FAILED
    org.junit.platform.commons.PreconditionViolationException: Kotlin function [public final java.lang.Object com.example.project.SuspendFunctionTests.test(kotlin.coroutines.Continuation<? super kotlin.Unit>)] requires org.jetbrains.kotlinx:kotlinx-coroutines-core to be on the classpath or module path. Please add a corresponding dependency.
        at app//org.junit.platform.commons.util.Preconditions.condition(Preconditions.java:339)
        at app//org.junit.platform.commons.util.KotlinReflectionUtils.requireDependency(KotlinReflectionUtils.java:189)
        at app//org.junit.platform.commons.util.KotlinReflectionUtils.requireKotlinxCoroutines(KotlinReflectionUtils.java:185)
        at app//org.junit.platform.commons.util.KotlinReflectionUtils.invokeKotlinSuspendingFunction(KotlinReflectionUtils.java:162)
        at app//org.junit.jupiter.engine.support.MethodReflectionUtils.invoke(MethodReflectionUtils.java:47)
        at app//org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:61)
        at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:124)
        at app//org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:163)
        at app//org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:148)
        at app//org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86)
        at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:123)
        at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:105)
        at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:99)
        at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:66)
        at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:47)
        at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:39)
        at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:104)
        at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:98)
        at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invokeVoid(InterceptingExecutableInvoker.java:71)
        at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$0(TestMethodTestDescriptor.java:219)
        at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
        at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:215)
        at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:157)
        at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:70)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$2(NodeTestTask.java:176)
        at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$1(NodeTestTask.java:166)
        at app//org.junit.platform.engine.support.hierarchical.Node.around(Node.java:139)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$0(NodeTestTask.java:164)
        at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:163)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:116)
        at java.base@17.0.17/java.util.ArrayList.forEach(ArrayList.java:1511)
        at app//org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:42)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$2(NodeTestTask.java:180)
        at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$1(NodeTestTask.java:166)
        at app//org.junit.platform.engine.support.hierarchical.Node.around(Node.java:139)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$0(NodeTestTask.java:164)
        at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:163)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:116)
        at java.base@17.0.17/java.util.ArrayList.forEach(ArrayList.java:1511)
        at app//org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:42)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$2(NodeTestTask.java:180)
        at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$1(NodeTestTask.java:166)
        at app//org.junit.platform.engine.support.hierarchical.Node.around(Node.java:139)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$0(NodeTestTask.java:164)
        at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:163)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:116)
        at app//org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:36)
        at app//org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:52)
        at app//org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:58)
        at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.executeEngine(EngineExecutionOrchestrator.java:246)
        at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.failOrExecuteEngine(EngineExecutionOrchestrator.java:218)
        at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:179)
        at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:108)
        at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:66)
        at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:157)
        at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:65)
        at app//org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:125)
        at app//org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
        at app//org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:93)
        at app//org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:48)
        at app//org.junit.platform.launcher.core.InterceptingLauncher.lambda$execute$0(InterceptingLauncher.java:41)
        at app//org.junit.platform.launcher.core.ClasspathAlignmentCheckingLauncherInterceptor.intercept(ClasspathAlignmentCheckingLauncherInterceptor.java:25)
        at app//org.junit.platform.launcher.core.InterceptingLauncher.execute(InterceptingLauncher.java:40)
        at app//org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:48)
        at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:135)
        at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$000(JUnitPlatformTestClassProcessor.java:110)
        at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:104)
        at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:64)
        at java.base@17.0.17/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base@17.0.17/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
        at java.base@17.0.17/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base@17.0.17/java.lang.reflect.Method.invoke(Method.java:569)
        at org.gradle.internal.dispatch.MethodInvocation.invokeOn(MethodInvocation.java:77)
        at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:28)
        at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:19)
        at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33)
        at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:88)
        at jdk.proxy1/jdk.proxy1.$Proxy4.stop(Unknown Source)
        at org.gradle.api.internal.tasks.testing.worker.TestWorker$3.run(TestWorker.java:194)
        at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:126)
        at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:103)
        at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:63)
        at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56)
        at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:122)
        at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:72)
        at app//worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69)
        at app//worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74)
3 actionable tasks: 3 executed
"
to contain:
  "PreconditionViolationException: Kotlin suspending function [public final java.lang.Object com.example.project.SuspendFunctionTests.test(kotlin.coroutines.Continuation<? super kotlin.Unit>)] requires org.jetbrains.kotlinx:kotlinx-coroutines-core to be on the classpath or module path. Please add a corresponding dependency." 
	at platform.tooling.support.tests.KotlinCoroutinesTests.failsWithHelpfulErrorMessageWhenKotlinxCoroutinesIsMissing(KotlinCoroutinesTests.java:53)
KotlinCoroutinesTests > failsWithHelpfulErrorMessageWhenKotlinxCoroutinesIsMissing(Path, OutputFiles) (:platform-tooling-support-tests:test in macOS) 
java.lang.AssertionError: 
Expecting actual:
  "To honour the JVM settings for this build a single-use Daemon process will be forked. For more on this, please refer to https://docs.gradle.org/9.2.1/userguide/gradle_daemon.html#sec:disabling_the_daemon in the Gradle documentation.
Daemon will be stopped at the end of the build 
> Task :checkKotlinGradlePluginConfigurationErrors SKIPPED
> Task :compileKotlin NO-SOURCE
> Task :compileJava NO-SOURCE
> Task :processResources NO-SOURCE
> Task :classes UP-TO-DATE
> Task :jar
> Task :assemble
> Task :processTestResources NO-SOURCE
> Task :compileTestKotlin
> Task :compileTestJava NO-SOURCE
> Task :testClasses UP-TO-DATE

> Task :test FAILED

SuspendFunctionTests > test() FAILED
    org.junit.platform.commons.PreconditionViolationException: Kotlin function [public final java.lang.Object com.example.project.SuspendFunctionTests.test(kotlin.coroutines.Continuation<? super kotlin.Unit>)] requires org.jetbrains.kotlinx:kotlinx-coroutines-core to be on the classpath or module path. Please add a corresponding dependency.
        at app//org.junit.platform.commons.util.Preconditions.condition(Preconditions.java:339)
        at app//org.junit.platform.commons.util.KotlinReflectionUtils.requireDependency(KotlinReflectionUtils.java:189)
        at app//org.junit.platform.commons.util.KotlinReflectionUtils.requireKotlinxCoroutines(KotlinReflectionUtils.java:185)
        at app//org.junit.platform.commons.util.KotlinReflectionUtils.invokeKotlinSuspendingFunction(KotlinReflectionUtils.java:162)
        at app//org.junit.jupiter.engine.support.MethodReflectionUtils.invoke(MethodReflectionUtils.java:47)
        at app//org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:61)
        at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:124)
        at app//org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:163)
        at app//org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:148)
        at app//org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86)
        at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:123)
        at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:105)
        at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:99)
        at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:66)
        at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:47)
        at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:39)
        at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:104)
        at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:98)
        at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invokeVoid(InterceptingExecutableInvoker.java:71)
        at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$0(TestMethodTestDescriptor.java:219)
        at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
        at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:215)
        at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:157)
        at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:70)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$2(NodeTestTask.java:176)
        at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$1(NodeTestTask.java:166)
        at app//org.junit.platform.engine.support.hierarchical.Node.around(Node.java:139)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$0(NodeTestTask.java:164)
        at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:163)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:116)
        at java.base@17.0.17/java.util.ArrayList.forEach(ArrayList.java:1511)
        at app//org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:42)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$2(NodeTestTask.java:180)
        at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$1(NodeTestTask.java:166)
        at app//org.junit.platform.engine.support.hierarchical.Node.around(Node.java:139)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$0(NodeTestTask.java:164)
        at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:163)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:116)
        at java.base@17.0.17/java.util.ArrayList.forEach(ArrayList.java:1511)
        at app//org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:42)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$2(NodeTestTask.java:180)
        at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$1(NodeTestTask.java:166)
        at app//org.junit.platform.engine.support.hierarchical.Node.around(Node.java:139)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$0(NodeTestTask.java:164)
        at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:163)
        at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:116)
        at app//org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:36)
        at app//org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:52)
        at app//org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:58)
        at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.executeEngine(EngineExecutionOrchestrator.java:246)
        at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.failOrExecuteEngine(EngineExecutionOrchestrator.java:218)
        at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:179)
        at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:108)
        at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:66)
        at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:157)
        at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:65)
        at app//org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:125)
        at app//org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
        at app//org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:93)
        at app//org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:48)
        at app//org.junit.platform.launcher.core.InterceptingLauncher.lambda$execute$0(InterceptingLauncher.java:41)
        at app//org.junit.platform.launcher.core.ClasspathAlignmentCheckingLauncherInterceptor.intercept(ClasspathAlignmentCheckingLauncherInterceptor.java:25)
        at app//org.junit.platform.launcher.core.InterceptingLauncher.execute(InterceptingLauncher.java:40)
        at app//org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:48)
        at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:135)
        at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$000(JUnitPlatformTestClassProcessor.java:110)
        at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:104)
        at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:64)
        at java.base@17.0.17/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base@17.0.17/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
        at java.base@17.0.17/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base@17.0.17/java.lang.reflect.Method.invoke(Method.java:569)
        at org.gradle.internal.dispatch.MethodInvocation.invokeOn(MethodInvocation.java:77)
        at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:28)
        at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:19)
        at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33)
        at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:88)
        at jdk.proxy1/jdk.proxy1.$Proxy4.stop(Unknown Source)
        at org.gradle.api.internal.tasks.testing.worker.TestWorker$3.run(TestWorker.java:194)
        at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:126)
        at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:103)
        at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:63)
        at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56)
        at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:122)
        at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:72)
        at app//worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69)
        at app//worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74)
3 actionable tasks: 3 executed
"
to contain:
  "PreconditionViolationException: Kotlin suspending function [public final java.lang.Object com.example.project.SuspendFunctionTests.test(kotlin.coroutines.Continuation<? super kotlin.Unit>)] requires org.jetbrains.kotlinx:kotlinx-coroutines-core to be on the classpath or module path. Please add a corresponding dependency." 
	at platform.tooling.support.tests.KotlinCoroutinesTests.failsWithHelpfulErrorMessageWhenKotlinxCoroutinesIsMissing(KotlinCoroutinesTests.java:53)

Muted Tests

Select tests to mute:

  • KotlinCoroutinesTests > failsWithHelpfulErrorMessageWhenKotlinReflectIsMissing(Path, OutputFiles)
  • KotlinCoroutinesTests > failsWithHelpfulErrorMessageWhenKotlinxCoroutinesIsMissing(Path, OutputFiles)

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@Ogu1208 Ogu1208 force-pushed the ogu1208/kotlin-value-class-support branch 2 times, most recently from a4f9603 to 8373625 Compare December 11, 2025 15:38
marcphilipp and others added 4 commits December 12, 2025 01:24
@marcphilipp @Ogu1208
POC for using inline value classes as method arguments
12a0cb4 
Issue: junit-team#5081
Signed-off-by: Ogu1208 <kdasunb6@gmail.com>
@Ogu1208
Add inline value class test
3225b43 
Signed-off-by: Ogu1208 <kdasunb6@gmail.com>
@Ogu1208
Rename Kotlin test classes tand remove redundant ResultTest
63769dd 
Signed-off-by: Ogu1208 <kdasunb6@gmail.com>
@Ogu1208
Add kotlin-reflect availability check for inline value classes
7933e30 
Signed-off-by: Ogu1208 <kdasunb6@gmail.com>
@Ogu1208 Ogu1208 force-pushed the ogu1208/kotlin-value-class-support branch from 8373625 to 7933e30 Compare December 11, 2025 16:24
@marcphilipp
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marcphilipp commented Dec 13, 2025

Please add an entry to the 6.1.0-M2 release notes.

@Ogu1208 Do you have time to address this or should we take over?

@marcphilipp marcphilipp added this to the 6.1.0-M2 milestone Dec 13, 2025
@Ogu1208 Ogu1208 force-pushed the ogu1208/kotlin-value-class-support branch from cf2abac to 6b1faa5 Compare December 14, 2025 08:16
@Ogu1208
Add release notes for Kotlin inline value class support
f37fd16 
Signed-off-by: Ogu1208 <kdasunb6@gmail.com>
@Ogu1208 Ogu1208 force-pushed the ogu1208/kotlin-value-class-support branch from 6b1faa5 to f37fd16 Compare December 14, 2025 08:17
@Ogu1208
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Ogu1208 commented Dec 14, 2025

@marcphilipp

Thank you for the feedback. I've added the release note entry.

Please let me know if any adjustments are needed. Apologies for the delay.

@Ogu1208 Ogu1208 force-pushed the ogu1208/kotlin-value-class-support branch 2 times, most recently from 04a13c9 to 239468f Compare December 14, 2025 09:12
@Ogu1208
Clarify generic-only inline value class support
f251983 
Signed-off-by: Ogu1208 <kdasunb6@gmail.com>
@Ogu1208 Ogu1208 force-pushed the ogu1208/kotlin-value-class-support branch from 239468f to f251983 Compare December 14, 2025 09:15
@Ogu1208 Ogu1208 marked this pull request as ready for review December 14, 2025 09:16
@Ogu1208
Add @API annotations to new public methods
f56ddcb 
Signed-off-by: Ogu1208 <kdasunb6@gmail.com>
@Ogu1208 Ogu1208 changed the title Add tests for Kotlin inline value class Support generic Kotlin inline value classes in parameterized tests Dec 14, 2025
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component: Jupiter component: Kotlin component: Platform theme: parameterized tests type: enhancement

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Add support for resolving Kotlin inline value class parameters

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