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Bug 57396

Summary:	[41cat] AssertError while editing
Product:	platform	Reporter:	schwarcz <schwarcz>
Component:	Filesystems	Assignee:	rmatous <rmatous>
Status:	RESOLVED FIXED
Severity:	blocker	CC:	jchalupa
Priority:	P3
Version:	4.x
Hardware:	PC
OS:	Windows XP
Issue Type:	DEFECT	Exception Reporter:
Attachments:	NB log file

Description schwarcz 2005-04-04 00:53:45 UTC

[ BUILD # : 20050329 ]
[ JDK VERSION : 1.5.0_02 ]


java.lang.AssertionError: D:\probes\Hibernate_CH2\src\hello\.LCKCh2.java~
	at org.netbeans.modules.masterfs.filebasedfs.fileobjects.WriteLock.releaseLock(WriteLock.java:149)
	at org.netbeans.modules.masterfs.Delegate$FileLockImpl.releaseLock(Delegate.java:271)
	at org.openide.text.DataEditorSupport$Env.unmarkModified(DataEditorSupport.java:491)
	at org.openide.text.CloneableEditorSupport.notifyUnmodified(CloneableEditorSupport.java:1340)
	at org.netbeans.modules.java.JavaEditor.notifyUnmodified(JavaEditor.java:219)
	at org.openide.text.CloneableEditorSupport$1SaveAsReader.after(CloneableEditorSupport.java:772)
	at org.openide.text.CloneableEditorSupport.saveDocument(CloneableEditorSupport.java:783)

Comment 1 schwarcz 2005-04-04 00:54:34 UTC

Created attachment 21323 [details]
NB log file

Comment 2 rmatous 2005-04-04 09:12:02 UTC

Seems like Windows specific. The failed code is crystal clear: if (f.exists &&
!f.delete) then this reported assertion is true. 

I can just speculate what could be the cause (opened inputstream. outputstream,
lock) but I really don't know how to fix it until there is some way how to
reproduce. 

WORKSFORME - if you can't reproduce. If so, then please reopen.

Comment 3 schwarcz 2005-04-07 04:42:25 UTC

Here's another instance during editing.  Don't toss it just because you can't
easily reproduce it.

java.lang.AssertionError:
d:\probes\RegEx\src\com\schwarcz\util\.LCKRegexTestHarness.java~
	at
org.netbeans.modules.masterfs.filebasedfs.fileobjects.WriteLock.releaseLock(WriteLock.java:149)
	at
org.netbeans.modules.masterfs.Delegate$FileLockImpl.releaseLock(Delegate.java:271)
	at
org.openide.text.DataEditorSupport$Env.unmarkModified(DataEditorSupport.java:491)
	at
org.openide.text.CloneableEditorSupport.notifyUnmodified(CloneableEditorSupport.java:1340)
	at org.netbeans.modules.java.JavaEditor.notifyUnmodified(JavaEditor.java:219)
	at
org.openide.text.CloneableEditorSupport$1SaveAsReader.after(CloneableEditorSupport.java:772)
	at
org.openide.text.CloneableEditorSupport.saveDocument(CloneableEditorSupport.java:783)
	at org.openide.text.DataEditorSupport.saveDocument(DataEditorSupport.java:273)
	at org.netbeans.modules.java.JavaEditor.saveDocument(JavaEditor.java:515)
	at org.netbeans.modules.java.JavaEditor.saveDocument(JavaEditor.java:502)
	at org.netbeans.modules.java.JavaEditor$Save.save(JavaEditor.java:230)
	at org.netbeans.core.NbTopManager.saveAll(NbTopManager.java:392

Comment 4 schwarcz 2005-04-07 04:45:23 UTC

Note that after this error, the source changes can not be saved.  Thus data is
lost.  The only recourse is to shut down the IDE, loose the current changes to
the file and restart the IDE.  Not a good deal.

Comment 5 rmatous 2005-04-07 14:04:21 UTC

/cvs/openide/masterfs/src/org/netbeans/modules/masterfs/filebasedfs/fileobjects/WriteLock.java,v
 new revision: 1.4; previous revision: 1.3

I don't know the real cause of this issue. But I may speculate that #57405 could
cause it, I can also imagine some race condition - that's why I added some
synchronization.

Definitely NB4.1 will have disabled assertions -da. 

I didn't want to toss this report - btw. its even impossible. I've just closed
it, because there was no hint how to fix it. 

Please,  test on tomorrow's build and either verify or reopen.