[PR] KAFKA-18356 Explicitly setting up instrumentation for inline mocking (Java 21+) [kafka]

[via GitHub]

m1a2st opened a new pull request, #18339:
URL: https://github.com/apache/kafka/pull/18339

   Jira: https://issues.apache.org/jira/browse/KAFKA-18356
   
   Starting from Java 21, the [JDK restricts the ability of libraries to attach 
a Java agent to their own JVM](https://openjdk.org/jeps/451). As a result, the 
inline-mock-maker might not be able to function without an explicit setup to 
enable instrumentation, and the JVM will always display a warning.
   
   The mockito 
[document](https://javadoc.io/doc/org.mockito/mockito-core/latest/org/mockito/Mockito.html#mockito-instrumentation)
   
   Test in my local
   trunk: 
   ![CleanShot 2024-12-28 at 22 01 
17@2x](https://github.com/user-attachments/assets/3a15dd62-f79e-4fec-9810-53f37667da1b)
   
   this branch:
   ![CleanShot 2024-12-28 at 22 00 
15@2x](https://github.com/user-attachments/assets/0d352435-f907-4f79-9be8-1c54db6b9d08)
   
   
   ### Committer Checklist (excluded from commit message)
   - [ ] Verify design and implementation 
   - [ ] Verify test coverage and CI build status
   - [ ] Verify documentation (including upgrade notes)
   


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