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From "Joern Kottmann (JIRA)" <...@uima.apache.org>
Subject [jira] [Commented] (UIMA-2528) Open CAS Editor blocks eclipse start
Date Fri, 21 Dec 2012 13:13:12 GMT

    [ https://issues.apache.org/jira/browse/UIMA-2528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13537840#comment-13537840
] 

Joern Kottmann commented on UIMA-2528:
--------------------------------------

In the stack trace the DLTK Indexing thread tries to call Display.syncExec which blocks until
the UI thread can process it, but the UI thread is blocked by the DLTK Indexing thread. Looks
like a dead lock to me. I am not sure why these two threads dead lock, but it probably depends
on the timing. Maybe the presence of the Cas Editor just changes the timing a bit during startup?
                
> Open CAS Editor blocks eclipse start
> ------------------------------------
>
>                 Key: UIMA-2528
>                 URL: https://issues.apache.org/jira/browse/UIMA-2528
>             Project: UIMA
>          Issue Type: Bug
>          Components: CasEditor, TextMarker
>    Affects Versions: 2.4.0SDK, 2.0.0TextMarker
>            Reporter: Peter Kl├╝gl
>         Attachments: jstack_ouput.txt
>
>
> I often observe that my Eclipse does not start, if the workspace was left with an open
CAS Editor. This happens when I run an Eclipse application from a workspace with the CAS Editor
and TextMarker bundles. In order to get a working Eclipse, I have to deactivate the CAS Editor
bundles, open the Eclipse, close the editors, close the Eclipse, and then activate the CAS
Editor bundles again. 

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