Java 22 not supported

[Keymaster65]

On "gradle pitestReportAggregate" I got

Execution failed for task ':pitestReportAggregate'.

A failure occurred while executing info.solidsoft.gradle.pitest.AggregateReportGenerator
Unsupported class file major version 66

It seems, that Java 22 is not supported.

[szpak]

What Gradle version do you use? 66 means JDK 22 and AggregateReportGenerator is built for JDK 1.8+.

Gradle 8.8+ seems to support JDK 22. Does it occur also with that version(s)?

[Keymaster65]

It was gradle 8.9 and 8.10.

[AndrzejVIMN]

Hi, I'm seeing a similar issue executing the pitest gradle task with JDK 22 and gradle 8.10.2:

Exception in thread "main" java.lang.IllegalArgumentException: Unsupported class file major version 66
        ...
	at org.pitest.bytecode.analysis.ClassTree.fromBytes(ClassTree.java:38)
	at org.pitest.classpath.DefaultCodeSource.lambda$codeTrees$1(DefaultCodeSource.java:35)
	...
	at org.pitest.mutationtest.verify.DefaultBuildVerifier.verify(DefaultBuildVerifier.java:41)
	at org.pitest.mutationtest.verify.CompoundBuildVerifierFactory.lambda$null$1(CompoundBuildVerifierFactory.java:20)
	...
	at org.pitest.mutationtest.verify.CompoundBuildVerifierFactory.lambda$create$2(CompoundBuildVerifierFactory.java:21)
	at org.pitest.mutationtest.tooling.MutationCoverage.verifyBuildSuitableForMutationTesting(MutationCoverage.java:283)
	at org.pitest.mutationtest.tooling.MutationCoverage.runReport(MutationCoverage.java:116)
	at org.pitest.mutationtest.tooling.EntryPoint.execute(EntryPoint.java:136)
	at org.pitest.mutationtest.tooling.EntryPoint.execute(EntryPoint.java:63)
	at org.pitest.mutationtest.commandline.MutationCoverageReport.runReport(MutationCoverageReport.java:98)
	at org.pitest.mutationtest.commandline.MutationCoverageReport.main(MutationCoverageReport.java:45)

Are there any plans to add JDK 22 support?

[hcoles]

@AndrzejVIMN What version of pitest are you using? 1.17.1 should work with anything upto Java 24.

[AndrzejVIMN]

@hcoles I was on the default version set by the plugin (which was 1.15.0 I believe) . Setting it to 1.17.1 helped, thanks :)

[szpak]

Closing as the issues is resolved by tuning up the configuration.