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PS-11265: Fix NPE on cause-less runs of pxc80 parallel-mtr#4182

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PS-11265-pxc-retry-agent-loss
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PS-11265: Fix NPE on cause-less runs of pxc80 parallel-mtr#4182
nogueiraanderson wants to merge 1 commit into
masterfrom
PS-11265-pxc-retry-agent-loss

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@nogueiraanderson nogueiraanderson commented Jun 9, 2026 •
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Bug

  • A cause-less run of pxc80-pipeline-parallel-mtr (Replay, or the EC2 Fleet plugin's task resubmit) crashes in seconds with an NPE at getBuildCauses()[0].userId before any work starts. Same crash class as ps80 builds 487-489 of the PS twin

Fix

  • Replace the [0] indexing with a typed UserIdCause lookup with a blank fallback

Tickets

@nogueiraanderson
fix(pxc80-parallel-mtr): guard empty build cause in BUILD_TRIGGER_BY
8d8e917 
- Replace getBuildCauses()[0].userId with a typed UserIdCause lookup; a
  cause-less run (Replay, EC2 Fleet plugin task resubmit) crashed with an
  NPE before any work started
@nogueiraanderson nogueiraanderson marked this pull request as ready for review June 9, 2026 21:32
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