Without the junit plugin the pipeline's junit step throws NoSuchMethodError,
jenkins.failed_tests is always empty, and auto-triage has only raw console
text to reason from. That was the root of two separate diagnosis failures:
the enforced failure being crowded out of the evidence budget, and the
patcher being unable to locate the defective source file.
Pinned to junit 1369.v15da_00283f06, the newest release that runs on core
2.528.3 - the current 1418 requires 2.533. scm-api moves 724 -> 728 because
the workflow-cps these pull in requires it; verified the whole 30-plugin
dependency closure needs no core newer than 2.528.3, and rehearsed the exact
jenkins-plugin-cli install in a throwaway pod before committing.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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