VisualVM and JVM reflection/introspection depend on HotSpot, and on GC safepoints, and so on. GraalVM uses its own GC, and has some limitations: https://github

VisualVM and JVM reflection/introspection depend on HotSpot, and on GC safepoints, and so on. GraalVM uses its own GC, and has some limitations: https://github.com/oracle/graal/blob/master/substratevm/Limitations.md https://github.com/oracle/graal/blob/master/substratevm/Limi... (basically it needs to statically know what will be accessed via reflection, so it can add those to the native-image). In theory, sure it can be made to work with VisualVM. But I'd be surprised if it works out of the box.