I've started getting with the last couple (5.5.4 and 5.5.5) versions of kotest.

[4.128s][warning][gc,alloc] ClassGraph-worker-16: Retried waiting for GCLocker too often allocating 1026 words

UnknownClass.Kotest > UnknownClass.initializationError FAILED
    org.junit.platform.commons.JUnitException at EngineExecutionOrchestrator.java:113
        Caused by: io.kotest.engine.config.ConfigurationException at ConfigManager.kt:29
            Caused by: io.github.classgraph.ClassGraphException at ClassGraph.java:1606
                Caused by: java.lang.OutOfMemoryError at NestedJarHandler.java:654

UnknownClass.Kotest FAILED

If I keep re-running it eventually works. Is there a kotest leak? Or am I missing some kotest setting or is there something else I should be modifying? thx

Which platform, build tool etc?

I'm on a mac but it also happens on Github Actions (all using gradle)

Running out of memory scanning your classpath to find tests by the look of it - I can imagine that might be quite memory intensive, depending on how big it is.