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Bug 45252 - Deadlock while saving and building a form class
Summary: Deadlock while saving and building a form class
Status: RESOLVED DUPLICATE of bug 45975
Alias: None
Product: java
Classification: Unclassified
Component: Unsupported (show other bugs)
Version: 4.x
Hardware: PC Linux
: P2 blocker (vote)
Assignee: issues@java
URL:
Keywords: THREAD
Depends on:
Blocks:
 
Reported: 2004-06-20 19:22 UTC by Jiri Rechtacek
Modified: 2007-09-26 09:14 UTC (History)
1 user (show)

See Also:
Issue Type: DEFECT
Exception Reporter:

Attachments
a stack trace when the deadlock appeared (18.03 KB, text/plain)
2004-06-20 19:23 UTC, Jiri Rechtacek 		Details
previous exception before deadlock (19.30 KB, text/plain)
2004-06-20 19:53 UTC, Jiri Rechtacek 		Details
Add an attachment (proposed patch, testcase, etc.)

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Description Jiri Rechtacek 2004-06-20 19:22:40 UTC 
>Log Session: Friday, June 18, 2004 11:39:06 AM CEST
>System Info: 
Product Version       = NetBeans IDE Dev (Build
040617)
Operating System      = Linux version 2.4.20-9
running on i386
Java; VM; Vendor      = 1.4.2_04; Java HotSpot(TM)
Client VM 1.4.2_04-b05; Sun Microsystems Inc.
Java Home             =
/usr/local/share/java/j2sdk1.4.2_04/jre

When I edited f form class, didn't save it and
then invoked Build project action (F11), the
attached deadlock has been appeared. (For my next
using this build I used to Save class and then
invoke Build, it has worked w/o deadlocks more.)
Comment 1 Jiri Rechtacek 2004-06-20 19:23:55 UTC 
Created attachment 15861 [details]
a stack trace when the deadlock appeared
Comment 2 Jiri Rechtacek 2004-06-20 19:53:49 UTC 
Created attachment 15863 [details]
previous exception before deadlock
Comment 3 Jan Becicka 2004-06-30 07:58:29 UTC 
Editor guys, please evaluate. Is it possible, that you didn't end
transaction after an exception was thrown? Anyway, please fix at least
an exception and than reassign this issue back to java.
Comment 4 Martin Roskanin 2004-06-30 09:23:58 UTC 
NPE fixed:

/cvs/editor/src/org/netbeans/modules/editor/java/NbCompletionJavaDoc.java,v
 <--  NbCompletionJavaDoc.java
new revision: 1.37; previous revision: 1.36

the exception appears in RP thread. MDR lock seems to be in
editor.completion thread. 
CompletionJavaDoc is not fully rewritten using JMI model (issue
#45717). It uses java source hierarchy. Also it seems there are
several calls to mdr w/o transaction from CompletionJavaDoc.

For now reassigning to java, feel free to reassign back...
Comment 5 Martin Matula 2004-07-16 23:23:19 UTC 
I believe this is not a deadlock (the thread with
StringBuffer.expandCapacity does not seem to be really blocked). It
looks more like a long-running completion query on the background
holding a transaction while AWT thread is trying to access it. AWT
thread blocking is a duplicate of issue 45975

*** This issue has been marked as a duplicate of 45975 ***