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Attaching thread dump. Product Version: NetBeans IDE Dev (Build 200908022240) Java: 1.6.0_14; Java HotSpot(TM) 64-Bit Server VM 14.0-b16 System: Linux version 2.6.28-15-generic running on amd64; UTF-8; cs_CZ (nb)
Created attachment 87241 [details] thread dump
Between RepositoryUpdater and TaskProcessor.
As there is no way to reproduce and even reporter is not able to tell the steps to reproduce decreasing priority.
I've found one possible way how to get this (cancel throws exception). I am fixing this one and close as FIXED, if you are able to reproduce please reopen with steps to reproduce.
Fixed in jet-main: 8188adfc740a
In addition to this I will try to rewrite the EventSupport to be more simple to prevent such a problems.
Integrated into 'main-golden', will be available in build *200909111401* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress) Changeset: http://hg.netbeans.org/main-golden/rev/8188adfc740a User: Tomas Zezula <tzezula@netbeans.org> Log: #171659:UI freeze