feat(maintenance): thread dump and info REST endpoints (#35205)#35463
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hassandotcms merged 7 commits intoMay 19, 2026
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Adds GET /api/v1/maintenance/_threads and GET /api/v1/maintenance/_threads/info, returning structured JSON via Immutables-backed view classes. Replaces the legacy DWR ThreadMonitorTool which served HTML <pre> blobs and is unusable for the Angular Maintenance portlet rewrite. Both responses include serverId and serverName so the UI can identify which cluster node served the request.
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…dpoints Brings upstream main into the thread-diagnostics branch. Conflicts in MaintenanceResource.java and openapi.yaml resolved by keeping both feature sets: the new Thread Diagnostics endpoints from this branch and the Fix/Clean Assets endpoints from main. openapi.yaml regenerated.
dario-daza
approved these changes
May 8, 2026
- Remove duplicate `java.util.ArrayList` import. - Stop dropping thread descriptors when a thread terminates between `dumpAllThreads()` and the live-thread map snapshot. ThreadInfo still carries name, state and full stack, so emit the descriptor with conservative defaults (daemon=false, priority=NORM_PRIORITY) and the ThreadInfo's captured state instead of silently losing it. - Force-include deadlocked threads regardless of `hideSystem`, so an operator triaging an incident never sees `deadlockedCount: 3` with zero deadlocked threads in the returned list.
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removed this pull request from the merge queue due to a conflict with the base branch
…-implement-thread-dump-and-info-endpoints # Conflicts: # dotCMS/src/main/java/com/dotcms/rest/api/v1/maintenance/MaintenanceResource.java
…ttps://github.com/dotCMS/core into 35205-task-implement-thread-dump-and-info-endpoints
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Adds GET /api/v1/maintenance/_threads and GET /api/v1/maintenance/_threads/info, returning structured JSON via Immutables-backed view classes. Replaces the legacy DWR ThreadMonitorTool which served HTML blobs and is unusable for the Angular Maintenance portlet rewrite. Both responses include serverId and serverName so the UI can identify which cluster node served the request.
This PR fixes: #35205
This PR fixes: #35205