I ran into a problem I just cannot understand. The problem seems isolated to the BytecodeEnhancerRunner JUnit Runner we use to test enhancement, though I cannot explain it. Hoping someone can help?

java.lang.ClassCastException: class org.junit.internal.runners.ErrorReportingRunner cannot be cast to class org.junit.runners.ParentRunner (org.junit.internal.runners.ErrorReportingRunner and org.junit.runners.ParentRunner are in unnamed module of loader 'app')

If not, I think I’ll take you up on your offer Rafael.

What confuses me is that ByteBuddy does not load Class references into any classloader, so I am not sure how using ByteBuddy has this affect at all.

The basic change I made is, when enhancing a class (Enhancer#enhance):

1. Load its super TypeDescription ref, if one
2. Load its FieldDescription refs
3. Load its MethodDescription refs