[hotfix][Process] Fail and untrack processes with a missing engine - #4330
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…missing executeOrTraceProcess returned early when the configured execution engine was not installed, but register() had already tracked the PENDING process: hasAliveTableProcess then blocked this action for the table on every scheduler tick until restart - and recovery after restart repeated the same failure, looping forever while leaking the tracked entry. Persist a FAILED record with an 'Execution engine not found' message (via the TableProcessStore interface, no cast; transition failures are logged, never thrown) and untrack so later ticks can schedule the action again once the engine is restored. Regression test testMissingEngineMarksProcessFailedAndUntracks (red before: status stayed PENDING, entry stayed tracked). Fix record: docs/fix-records/2026-08-16-fix-16-missing-engine-stuck-process.md
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Brief change log
When the configured execution engine is absent, persist the process as failed and untrack it from the table runtime. This prevents a pending process from blocking later scheduling attempts indefinitely.
How was this patch tested?
TestDefaultProcessService#testRunTableProcesslocally with JDK 11 before creating this pull request.Documentation