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It started on the build 200511161900 it did run without any problems in build 200511151900. Investigation: I've found out that the lock file still exists when we try to start the IDE with prepared userdir. The reason is that the preparation of the userdir(open project, close Welcome, close Memory meter, open files) didn't finish successfully, or the IDE is still running. After few attempts to fix it I found that the Preparation just failed, it hass been killed by the xtest. Look at the attachment, there is a full thread-dump from the IDE in that time.
Created attachment 27051 [details] Full tread-dump
Editor guys please look at the thread-dump, there is more or less only the editor. Any suspicius fix between 200511151900 and 200511161900 ?
I have fixed issue 61103 in two stages and the last commit was done at 22:19 while the daily build was done at 19:00 so the fix was not included in the daily build. The BaseCaret.updateType() no longer calls dispatchUpdate() so I'm confident that this deadlock no longer occurs. Marking as fixed, please reopen if I'm wrong.
It looks like it really works in NB 5.0 (200511201900) - verified