KotlinTest and Spek2 conflict over classgraph in Java11

[akurdyukov]

Using both io.kotlintest:kotlintest-runner-junit5:3.4.2 and org.spekframework.spek2:spek-dsl-jvm:2.0.7 in a single project with Java11 causes errors like

Exception in thread "main" java.lang.annotation.AnnotationFormatError: java.lang.IllegalArgumentException: Wrong type at constant pool index
	at java.base/sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:78)
	at java.base/java.lang.Class.createAnnotationData(Class.java:3758)
	at java.base/java.lang.Class.annotationData(Class.java:3747)
	at java.base/java.lang.Class.getDeclaredAnnotations(Class.java:3714)
	at kotlin.reflect.jvm.internal.components.ReflectClassStructure.loadClassAnnotations(ReflectKotlinClass.kt:83)
	at kotlin.reflect.jvm.internal.components.ReflectKotlinClass$Factory.create(ReflectKotlinClass.kt:55)
	at kotlin.reflect.jvm.internal.components.ReflectKotlinClassFinder.findKotlinClass(ReflectKotlinClassFinder.kt:30)
	at kotlin.reflect.jvm.internal.components.ReflectKotlinClassFinder.findKotlinClassOrContent(ReflectKotlinClassFinder.kt:33)
	at kotlin.reflect.jvm.internal.impl.load.java.lazy.descriptors.LazyJavaPackageScope$classes$1.invoke(LazyJavaPackageScope.kt:62)
	at kotlin.reflect.jvm.internal.impl.load.java.lazy.descriptors.LazyJavaPackageScope$classes$1.invoke(LazyJavaPackageScope.kt:42)
	at kotlin.reflect.jvm.internal.impl.storage.LockBasedStorageManager$MapBasedMemoizedFunction.invoke(LockBasedStorageManager.java:440)
	at kotlin.reflect.jvm.internal.impl.load.java.lazy.descriptors.LazyJavaPackageScope.findClassifier(LazyJavaPackageScope.kt:142)
	at kotlin.reflect.jvm.internal.impl.load.java.lazy.descriptors.LazyJavaPackageScope.getContributedClassifier(LazyJavaPackageScope.kt:132)
	at kotlin.reflect.jvm.internal.impl.load.java.lazy.descriptors.JvmPackageScope.getContributedClassifier(JvmPackageScope.kt:52)
	at kotlin.reflect.jvm.internal.impl.resolve.scopes.ChainedMemberScope.getContributedClassifier(ChainedMemberScope.kt:33)
	at kotlin.reflect.jvm.internal.impl.resolve.scopes.AbstractScopeAdapter.getContributedClassifier(AbstractScopeAdapter.kt:44)
	at kotlin.reflect.jvm.internal.impl.descriptors.FindClassInModuleKt.findClassAcrossModuleDependencies(findClassInModule.kt:25)
	at kotlin.reflect.jvm.internal.KClassImpl$Data$descriptor$2.invoke(KClassImpl.kt:51)
	at kotlin.reflect.jvm.internal.KClassImpl$Data$descriptor$2.invoke(KClassImpl.kt:44)
	at kotlin.reflect.jvm.internal.ReflectProperties$LazySoftVal.invoke(ReflectProperties.java:92)
	at kotlin.reflect.jvm.internal.ReflectProperties$Val.getValue(ReflectProperties.java:31)
	at kotlin.reflect.jvm.internal.KClassImpl$Data.getDescriptor(KClassImpl.kt)
	at kotlin.reflect.jvm.internal.KClassImpl.getDescriptor(KClassImpl.kt:179)
	at kotlin.reflect.jvm.internal.KClassImpl.isAbstract(KClassImpl.kt:268)
	at org.spekframework.spek2.runtime.JvmDiscoveryContextFactory.create(JvmDiscoveryContextFactory.kt:25)
	at org.spekframework.ide.Spek2ConsoleLauncher.run(console.kt:17)
	at org.spekframework.ide.ConsoleKt$main$1.invoke(console.kt:35)
	at org.spekframework.ide.ConsoleKt$main$1.invoke(console.kt)
	at shadow.com.xenomachina.argparser.SystemExitExceptionKt.mainBody(SystemExitException.kt:74)
	at shadow.com.xenomachina.argparser.SystemExitExceptionKt.mainBody$default(SystemExitException.kt:72)
	at org.spekframework.ide.ConsoleKt.main(console.kt:33)
Caused by: java.lang.IllegalArgumentException: Wrong type at constant pool index
	at java.base/jdk.internal.reflect.ConstantPool.getClassAt0(Native Method)
	at java.base/jdk.internal.reflect.ConstantPool.getClassAt(ConstantPool.java:37)
	at java.base/sun.reflect.annotation.AnnotationParser.parseAnnotation2(AnnotationParser.java:245)
	at java.base/sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:121)
	at java.base/sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:73)
	... 30 more

I used this thread spekframework/spek#707 to find that it's a conflict over classgraph dependency version. Dependency graph show that kotlin test runner wants io.github.classgraph:classgraph:4.8.1, and spek2 wants io.github.classgraph:classgraph:4.6.18 -> 4.8.37

My workaround is

testImplementation "io.github.classgraph:classgraph:4.8.47"

Maybe classgraph dependency can be updated in the runner?

[LeoColman]

Yes, we can update it.
It should be pretty straight forward

[sksamuel]

Let's upgrade and release 3.4.3

[cueo]

Is this open? Can I take this up?

[LeoColman]

Sure! Go ahead