[JENKINS-35272] Launcher's afterDisconnect() method is called twice #17204
Description
When a DumbSlave disconnects, the launcher's afterDisconnect() is called twice.
This means, for instance, that a VM configured to shutdown and revert after a disconnect will do so twice.
Originally reported by 
peppe, imported from: Launcher's afterDisconnect() method is called twice
- status: Open
- priority: Major
- component(s): core
- label(s): newbie-friendly
- resolution: Unresolved
- votes: 0
- watchers: 1
- imported: 2025-11-24
Raw content of original issue
When a DumbSlave disconnects, the launcher's afterDisconnect() is called twice. This means, for instance, that a VM configured to shutdown and revert after a disconnect will do so twice.