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Bug 146155 - AWT blocked for minutes after startup
Summary: AWT blocked for minutes after startup
Status: RESOLVED FIXED
Alias: None
Product: editor
Classification: Unclassified
Component: Settings (show other bugs)
Version: 6.x
Hardware: All All
: P2 blocker (vote)
Assignee: Vitezslav Stejskal
URL:
Keywords: PERFORMANCE, THREAD
Depends on: 142767
Blocks:
  Show dependency tree
 
Reported: 2008-09-04 10:52 UTC by Jaroslav Tulach
Modified: 2008-09-05 17:31 UTC (History)
1 user (show)

See Also:
Issue Type: DEFECT
Exception Reporter:

Attachments
full thread dump (24.36 KB, text/plain)
2008-09-04 10:52 UTC, Jaroslav Tulach 		Details
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Description Jaroslav Tulach 2008-09-04 10:52:26 UTC 
Build from 4Sep, 2008, blocks AWT after startup waiting in CodeStylePreferences. 

"AWT-EventQueue-1" prio=10 tid=0x082dc000 nid=0x27c6 waiting for monitor entry [0x8cafe000..0x8caff0b0]
   java.lang.Thread.State: BLOCKED (on object monitor)
        at org.netbeans.modules.editor.indent.spi.CodeStylePreferences.get(CodeStylePreferences.java:180)
        - waiting to lock <0x9453b910> (a java.util.WeakHashMap)
        at org.netbeans.modules.editor.indent.spi.CodeStylePreferences.get(CodeStylePreferences.java:103)
        at org.netbeans.modules.editor.indent.api.IndentUtils.tabSize(IndentUtils.java:122)
        at org.netbeans.modules.editor.NbEditorDocument.getTabSize(NbEditorDocument.java:144)
        at org.netbeans.editor.BaseDocument.getVisColFromPos(BaseDocument.java:2108)
        - locked <0x93fd7ce8> (a java.lang.Object)
        at org.netbeans.editor.Utilities.getVisualColumn(Utilities.java:647)
        at org.netbeans.editor.Utilities.debugPosition(Utilities.java:1100)
        at org.netbeans.editor.StatusBar$CaretListener.actionPerformed(StatusBar.java:570)
        at org.netbeans.editor.WeakTimerListener.actionPerformed(WeakTimerListener.java:85)
        at javax.swing.Timer.fireActionPerformed(Timer.java:271)
        at javax.swing.Timer$DoPostEvent.run(Timer.java:201)
Comment 1 Jaroslav Tulach 2008-09-04 10:52:58 UTC 
Created attachment 69036 [details]
full thread dump
Comment 2 Jan Becicka 2008-09-05 10:02:29 UTC 
Vito, please take a look at it. Thanks.
Comment 3 Vitezslav Stejskal 2008-09-05 11:10:48 UTC 
It's still the same story, which I'm pretty sure Jarda already knows. In short: pre-project formatting settings -> need
ProjectManager.mutex() -> when opening projects somebody else holds the mutex -> we can't open a document, render it or
do pretty much anything else and end up blocking AWT.

The real question is 'do we need to writeLock the mutex'? Maybe not, see issue #142767. Is anybody bold enough to make
the change suggested in #142767. I guess not, so it's probably gonna have to be me. (puke)
Comment 4 Vitezslav Stejskal 2008-09-05 11:50:17 UTC 
With #142767 fixed I also changed CodeStylePreferences to use readAccess, which should improve the situation.
http://hg.netbeans.org/main/rev/917a3b0e6eb2
Comment 5 Quality Engineering 2008-09-05 17:31:17 UTC 
Integrated into 'main-golden', will be available in build *200809051401* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress)
Changeset: http://hg.netbeans.org/main/rev/917a3b0e6eb2
User: Vita Stejskal <vstejskal@netbeans.org>
Log: #146155: AuxiliaryConfigBasedPreferences.node now uses readAccess (see #142767) and we can now use readAccess too