ClassFormatError (_ebean_newInstanceReadOnly): Occasionally enhancement produces duplicate method

[jnehlmeier]

Actual behavior

java.lang.ClassFormatError: Duplicate method name "_ebean_newInstanceReadOnly" with signature "()Ljava.lang.Object;" in class file xxxxxx

Steps to reproduce

I can not reproduce it yet, however I have a feeling that it happens if git replaces source files on disk after switching branches or similar and then Gradle, using Ebean's Gradle plugin, enhances files.

Maybe carefully reading Ebean enhancement code could reveal the issue. The issue appeared after upgrading from 12.10.0 to 13.8.0 using Gradle 7.5.1.

When the issue appears I have to call gradle clean and recompile everything.