Java 25 unsupported on v1.23.8

[rgrochowicz]

Expected Behavior

Detekt should run under a Java 25 JVM with a JVM target of 17.

Observed Behavior

Execution fails with an error of:

Caused by: java.lang.IllegalArgumentException: 25
        at org.jetbrains.kotlin.com.intellij.util.lang.JavaVersion.parse(JavaVersion.java:307)
        at org.jetbrains.kotlin.com.intellij.util.lang.JavaVersion.current(JavaVersion.java:176)
        at org.jetbrains.kotlin.cli.jvm.modules.JavaVersionUtilsKt.isAtLeastJava9(javaVersionUtils.kt:11)
        at org.jetbrains.kotlin.cli.jvm.modules.CoreJrtFileSystem.globalJrtFsCache$lambda$2(CoreJrtFileSystem.kt:83)
        at org.jetbrains.kotlin.cli.jvm.modules.CoreJrtFileSystem.globalJrtFsCache$lambda$3(CoreJrtFileSystem.kt:74)
        at org.jetbrains.kotlin.com.intellij.util.containers.ConcurrentFactoryMap$2.create(ConcurrentFactoryMap.java:174)
        at org.jetbrains.kotlin.com.intellij.util.containers.ConcurrentFactoryMap.get(ConcurrentFactoryMap.java:40)
        at org.jetbrains.kotlin.cli.jvm.modules.CoreJrtFileSystem.roots$lambda$0(CoreJrtFileSystem.kt:34)
        at org.jetbrains.kotlin.cli.jvm.modules.CoreJrtFileSystem.roots$lambda$1(CoreJrtFileSystem.kt:33)
        at org.jetbrains.kotlin.com.intellij.util.containers.ConcurrentFactoryMap$2.create(ConcurrentFactoryMap.java:174)
        at org.jetbrains.kotlin.com.intellij.util.containers.ConcurrentFactoryMap.get(ConcurrentFactoryMap.java:40)
        at org.jetbrains.kotlin.cli.jvm.modules.CoreJrtFileSystem.findFileByPath(CoreJrtFileSystem.kt:42)
        at org.jetbrains.kotlin.cli.jvm.modules.CliJavaModuleFinder.<init>(CliJavaModuleFinder.kt:44)
        at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment.<init>(KotlinCoreEnvironment.kt:243)
        at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment.<init>(KotlinCoreEnvironment.kt)
        at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment$Companion.createForProduction(KotlinCoreEnvironment.kt:468)
        at io.github.detekt.parser.KotlinEnvironmentUtilsKt.createKotlinCoreEnvironment(KotlinEnvironmentUtils.kt:61)
        at io.gitlab.arturbosch.detekt.core.settings.EnvironmentFacade.environment_delegate$lambda$0(EnvironmentAware.kt:45)
        at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
        at io.gitlab.arturbosch.detekt.core.settings.EnvironmentFacade.getEnvironment(EnvironmentAware.kt:35)
        at io.gitlab.arturbosch.detekt.core.ProcessingSettings.getEnvironment(ProcessingSettings.kt)
        at io.gitlab.arturbosch.detekt.core.KtTreeCompiler.<init>(KtTreeCompiler.kt:18)
        at io.gitlab.arturbosch.detekt.core.tooling.ParsingStrategyKt.inputPathsToKtFiles$lambda$2(ParsingStrategy.kt:24)
        at io.gitlab.arturbosch.detekt.core.tooling.Lifecycle$DefaultImpls.analyze$lambda$1(Lifecycle.kt:38)
        at io.gitlab.arturbosch.detekt.core.util.PerformanceMonitor.measure(PerformanceMonitor.kt:43)
        at io.gitlab.arturbosch.detekt.core.tooling.Lifecycle$DefaultImpls.measure(Lifecycle.kt:34)
        at io.gitlab.arturbosch.detekt.core.tooling.Lifecycle$DefaultImpls.analyze(Lifecycle.kt:38)
        at io.gitlab.arturbosch.detekt.core.tooling.DefaultLifecycle.analyze(Lifecycle.kt:61)
        at io.gitlab.arturbosch.detekt.core.tooling.AnalysisFacade.runAnalysis$lambda$8(AnalysisFacade.kt:48)
        at io.gitlab.arturbosch.detekt.core.tooling.ProcessingSpecSettingsBridgeKt.withSettings(ProcessingSpecSettingsBridge.kt:26)
        at io.gitlab.arturbosch.detekt.core.tooling.AnalysisFacade.runAnalysis$detekt_core(AnalysisFacade.kt:47)
        at io.gitlab.arturbosch.detekt.core.tooling.AnalysisFacade.run(AnalysisFacade.kt:25)
        at io.gitlab.arturbosch.detekt.cli.runners.Runner.call(Runner.kt:33)
        at io.gitlab.arturbosch.detekt.cli.runners.Runner.execute(Runner.kt:23)
        ... 125 more

Steps to Reproduce

Define Detekt config via Gradle like so:

detekt {
    buildUponDefaultConfig = true
}
tasks.withType<Detekt>().configureEach {
    jvmTarget = "17"
    reports {
        sarif.required = true
    }
}

1. Install Corretto 25
2. Run ./gradlew check

Context

It appears that this is a flaw within the Kotlin compiler that was fixed in v2.1.20. It hardcoded a less-than-25 when parsing a Java version, and 25 > (25 - 1).

#8302 will fix it, but hopefully that's backported to Detekt v1? 🤞

Your Environment

• Version of detekt used: v1.23.8
• Version of Gradle used (if applicable): v9.1.0 + Corretto 25
• Gradle scan link (add --scan option when running the gradle task): n/a
• Operating System and version: macOS Tahoe
• Link to your project (if it's a public repository):

[cortinico]

#8302 will fix it, but hopefully that's backported to Detekt v1? 🤞

Highly unlikely. The v1 branch has diverged so much that is becoming extremely complicated to backport anything there.

This will be shipped in the next 2.0.0 alpha and in snapshot versions

[TWiStErRob]

Are you sure #8302 will fully fix this? Looks like they add Java 25 support in 2.3
https://youtrack.jetbrains.com/issue/KT-81077/Add-JVM-target-bytecode-version-25
or it'll work because of target 17?

[rgrochowicz]

@TWiStErRob Yeah, 2.2.20 will fix this specific exception, as the pre-2.1.20 Kotlin compiler couldn't parse a Java version greater than 24. Can't say there won't be another error found along the execution path, though 😅

[sarah-jay-peper]

I have a similar issue with JVM 24. And we have upstream pressure to stop using JVM 21, so we may have to ditch everything not supporting newer JVMs soon(ish)

[3flex]

@rgrochowicz please check with latest snapshot and see if it runs - I expect it will. JVM target 25 is still not supported but this will come with Kotlin 2.3.

@sarah-jay-peper you can use the next 2.0.0 alpha release when it's out which will support JVM target 24.

[silviuburceadev]

Is there an estimate for when detekt 2.0.0 GA is shipped? I'm trying to switch to Java 25/Kotlin 2.3.0 and the only thing blocking my CICD pipeline is Sonar, which has Detekt Sensor and breaks the build with this error.