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Bug 139839 - Possible deadlock when repainting the heap view (aka memory toolbar)
Summary: Possible deadlock when repainting the heap view (aka memory toolbar)
Status: VERIFIED WONTFIX
Alias: None
Product: platform
Classification: Unclassified
Component: Window System (show other bugs)
Version: 6.x
Hardware: All All
: P3 blocker (vote)
Assignee: David Simonek
URL:
Keywords: RANDOM, THREAD
Depends on:
Blocks:
 
Reported: 2008-07-14 09:13 UTC by Petr Dvorak
Modified: 2008-12-22 13:42 UTC (History)
2 users (show)

See Also:
Issue Type: DEFECT
Exception Reporter:

Attachments
Thread Dump (18.47 KB, text/plain)
2008-07-14 09:14 UTC, Petr Dvorak 		Details
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Description Petr Dvorak 2008-07-14 09:13:41 UTC 
Product Version: NetBeans IDE Dev (Build 200807101204)
Java: 1.6.0_10-rc; Java HotSpot(TM) Client VM 11.0-b13
System: Linux version 2.6.24-19-generic running on i386; UTF-8; en_US (nb)

I started NB with a clean userdir and I opened a project. I worked for a minute or two, then I closed project and I
invoked open file dialog. I wanted to close this open file dialog, but IDE froze, it was totally stuck (when I pressed
Ctrl+C in the command line, IDE was still there, "killall java" - no problem, IDE was still there, I had to use "kill
-9")...

Thread dump follows.
Comment 1 Petr Dvorak 2008-07-14 09:14:11 UTC 
Created attachment 64405 [details]
Thread Dump
Comment 2 Peter Pis 2008-08-16 00:07:54 UTC 
*** Issue 144131 has been marked as a duplicate of this issue. ***
Comment 3 Marian Petras 2008-08-21 15:09:56 UTC 
The call-stack of thread "AWT-EventQueue-1", which caused the hang, demonstrates that the freeze occurred during
repainting the heap view display. The Open File dialogue does not explicitly request any locks so the bug is either in
the heap view code or in AWT/Swing. Reassigned to "openide/actions" for further evaluation.
Comment 4 Petr Nejedly 2008-08-25 16:07:15 UTC 
*** Issue 144931 has been marked as a duplicate of this issue. ***
Comment 5 Petr Nejedly 2008-08-26 11:08:43 UTC 
Very strange painting lockup with no apparent reason.
Unrelated to apisupport/timers, probably even unrelated to memory bar (which is in core, IIRC), which was just
unfortunate enough to try to paint at wrong time...
Comment 6 David Simonek 2008-08-26 11:56:37 UTC 
Nothing I can do with this, sorry, because issue is random, reason not known and thread dumps related to lock ends in
not-netbeans code.

Please reopen if it happens more frequently under some circumstances, ideally with reproducible scenario, although I
know it isn't likely.
Comment 7 Petr Dvorak 2008-08-26 12:06:27 UTC 
OK, I will reopen if I meet it again. Verified for now.