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Bug 190339

Summary:	Netbeans 6.9.1 hangs frequently.
Product:	projects	Reporter:	elishae <elishae>
Component:	Maven	Assignee:	Jesse Glick <jglick>
Status:	RESOLVED DUPLICATE
Severity:	normal
Priority:	P1
Version:	6.x
Hardware:	PC
OS:	Linux
Issue Type:	DEFECT	Exception Reporter:

Description elishae 2010-09-13 14:58:24 UTC

I'm encountering frequent "Hang" in the Netbeans 6.9.1.

When the IDE is hung, Connecting to the process using jconsole, and invoking 'detect deadlock' in the 'threads' tab shows that more than couple of threads are in 'deadlock'.

Will update the dead lock info in subsequent comment.

Comment 1 elishae 2010-09-13 15:16:29 UTC

Name: Default RequestProcessor
State: BLOCKED on org.openide.windows.CloneableOpenSupport$Listener@19fffa0 owned by: AWT-EventQueue-1
Total blocked: 57  Total waited: 49
Stack trace: 
org.openide.text.CloneableEditorSupport.openDocument(CloneableEditorSupport.java:806)
org.openide.text.DataEditorSupport.openDocument(DataEditorSupport.java:496)
org.netbeans.modules.maven.model.Utilities._getDocument(Utilities.java:168)
org.netbeans.modules.maven.model.Utilities.access$000(Utilities.java:93)
org.netbeans.modules.maven.model.Utilities$1.getLookup(Utilities.java:226)
org.openide.util.lookup.SimpleProxyLookup.checkLookup(SimpleProxyLookup.java:80)
org.openide.util.lookup.SimpleProxyLookup.lookup(SimpleProxyLookup.java:155)
org.netbeans.modules.xml.xam.AbstractModelFactory.getEffectiveAccessProvider(AbstractModelFactory.java:119)
org.netbeans.modules.xml.xam.AbstractModelFactory.getKey(AbstractModelFactory.java:111)
org.netbeans.modules.xml.xam.AbstractModelFactory.getModel(AbstractModelFactory.java:132)
   - locked org.netbeans.modules.maven.model.pom.POMModelFactory@139e2f7
org.netbeans.modules.maven.model.pom.POMModelFactory.getModel(POMModelFactory.java:78)
org.netbeans.modules.maven.navigator.POMModelPanel.run(POMModelPanel.java:312)
org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1957)
------------------------------------------------------


Name: AWT-EventQueue-1
State: BLOCKED on org.netbeans.modules.maven.model.pom.impl.POMModelImpl@726d23 owned by: StatusProvider
Total blocked: 8,487  Total waited: 8,231
Stack trace: 
org.netbeans.modules.xml.xam.dom.AbstractDocumentModel.getAccess(AbstractDocumentModel.java:571)
org.netbeans.modules.xml.xam.dom.AbstractDocumentModel.documentChanged(AbstractDocumentModel.java:147)
org.netbeans.modules.xml.xam.dom.AbstractDocumentModel.access$100(AbstractDocumentModel.java:79)
org.netbeans.modules.xml.xam.dom.AbstractDocumentModel$DocumentChangeListener.removeUpdate(AbstractDocumentModel.java:200)
org.netbeans.modules.xml.xam.dom.AbstractDocumentModel$WeakDocumentListener.removeUpdate(AbstractDocumentModel.java:173)
org.netbeans.lib.editor.util.swing.PriorityDocumentListenerList.removeUpdate(PriorityDocumentListenerList.java:102)
javax.swing.text.AbstractDocument.fireRemoveUpdate(AbstractDocument.java:243)
org.netbeans.editor.BaseDocument.fireRemoveUpdate(BaseDocument.java:1664)
org.netbeans.editor.BaseDocument.remove(BaseDocument.java:959)
org.openide.text.CloneableEditorSupport$4.run(CloneableEditorSupport.java:770)
org.netbeans.editor.GuardedDocument.runAtomic(GuardedDocument.java:314)
org.openide.text.NbDocument.runAtomic(NbDocument.java:422)
org.openide.text.CloneableEditorSupport.clearDocument(CloneableEditorSupport.java:764)
org.openide.text.CloneableEditorSupport.access$1700(CloneableEditorSupport.java:126)
org.openide.text.CloneableEditorSupport$6$1Query.call(CloneableEditorSupport.java:1695)
org.openide.text.CloneableEditorSupport$6.run(CloneableEditorSupport.java:1708)
org.netbeans.editor.GuardedDocument.runAtomic(GuardedDocument.java:314)
org.openide.text.NbDocument.runAtomic(NbDocument.java:422)
org.openide.text.CloneableEditorSupport.reloadDocument(CloneableEditorSupport.java:1658)
org.openide.text.CloneableEditorSupport.checkReload(CloneableEditorSupport.java:2292)
   - locked org.openide.windows.CloneableOpenSupport$Listener@19fffa0
org.openide.text.CloneableEditorSupport.access$2600(CloneableEditorSupport.java:126)
org.openide.text.CloneableEditorSupport$Listener$1.run(CloneableEditorSupport.java:2928)
org.netbeans.editor.GuardedDocument.runAtomic(GuardedDocument.java:314)
org.openide.text.NbDocument.runAtomic(NbDocument.java:422)
org.openide.text.CloneableEditorSupport$Listener$1.run(CloneableEditorSupport.java:2920)
java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:137)
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
-----------------------------------------------


Name: StatusProvider
State: BLOCKED on org.openide.windows.CloneableOpenSupport$Listener@19fffa0 owned by: AWT-EventQueue-1
Total blocked: 67  Total waited: 42
Stack trace: 
org.openide.text.CloneableEditorSupport.openDocument(CloneableEditorSupport.java:806)
org.openide.text.DataEditorSupport.openDocument(DataEditorSupport.java:496)
org.netbeans.modules.maven.model.Utilities._getDocument(Utilities.java:168)
org.netbeans.modules.maven.model.Utilities.access$000(Utilities.java:93)
org.netbeans.modules.maven.model.Utilities$1.getLookup(Utilities.java:226)
org.openide.util.lookup.SimpleProxyLookup.checkLookup(SimpleProxyLookup.java:80)
org.openide.util.lookup.SimpleProxyLookup.lookup(SimpleProxyLookup.java:155)
org.netbeans.modules.xml.xam.dom.AbstractDocumentModel.needsSync(AbstractDocumentModel.java:118)
org.netbeans.modules.xml.xam.AbstractModel.sync(AbstractModel.java:278)
   - locked org.netbeans.modules.maven.model.pom.impl.POMModelImpl@726d23
org.netbeans.modules.maven.hints.pom.StatusProvider$StatusProviderImpl.findHints(StatusProvider.java:139)
org.netbeans.modules.maven.hints.pom.StatusProvider$StatusProviderImpl.checkHints(StatusProvider.java:130)
org.netbeans.modules.maven.hints.pom.StatusProvider$StatusProviderImpl.access$000(StatusProvider.java:100)
org.netbeans.modules.maven.hints.pom.StatusProvider$StatusProviderImpl$1$1.run(StatusProvider.java:114)
org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1957)

Comment 2 mfu 2010-09-15 21:27:49 UTC

Can confirm this on Ubuntu 10.04 AMD64 using Sun Java "1.6.0_20" and Netbeans 6.9.1.

I've only experienced this after saving a maven pom.xml file.

Comment 3 tbb 2010-09-15 22:35:03 UTC

This issue also occurs, while switching to the GUI-Editor, if some other source files are open. The initialsation (loading) of the editor starts and ... thats it.

Workaround:
1. Restart NetBeans (losing all changes)
2. Close all opened files
3. Restart NetBeans again
4. Open the GUI-Editor

It seems NetBeans 6.9.X has a serious bug in its thread handling.

In 6.8 this issue does not occur.

Comment 4 Jesse Glick 2010-09-16 15:30:33 UTC


*** This bug has been marked as a duplicate of bug 187615 ***