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Bug 40469

Summary:	unmounting sub-filesystem can give a NullPointerException
Product:	platform	Reporter:	dynamite <dynamite>
Component:	Text	Assignee:	Petr Nejedly <pnejedly>
Status:	VERIFIED FIXED
Severity:	blocker	Keywords:	SIMPLEFIX
Priority:	P3
Version:	3.x
Hardware:	PC
OS:	Windows ME/2000
Issue Type:	DEFECT	Exception Reporter:

Description dynamite 2004-02-25 14:10:54 UTC

I had a filesystem that was mounted via the 'Mount
as New Filesystem' from the tools menu item. I had
previously had some java and C++ source files open
and a database connection. All were closed prior
to unmounting. However, unmounting this filesystem
gave the following exception:

java.lang.NullPointerException: Invalid doc
parameter. Document may not be null!
	at
org.openide.text.NbDocument.checkDocParameter(NbDocument.java:378)
	at
org.openide.text.NbDocument.runAtomic(NbDocument.java:337)
[catch] at
org.openide.text.CloneableEditorSupport$9.run(CloneableEditorSupport.java:1854)
	at
java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:201)
	at
java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
	at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:234)
	at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
	at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
	at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
	at
java.awt.EventDispatchThread.run(EventDispatchThread.java:110)

Comment 1 Lukas Hasik 2004-02-27 09:16:54 UTC

build number, jdk ?

Comment 2 dynamite 2004-02-27 09:19:13 UTC

Build: dev from the 24th Feb

JDK 1.5.0-beta

Comment 3 Petr Nejedly 2004-03-01 15:24:57 UTC

It seems the editor was still still processing a file change when it
was already closed. The exception is harmless but annoying and the fix
is simple, so I'd like to fix it for 3.6

Comment 4 Petr Nejedly 2004-03-01 17:19:06 UTC

Fixed.
openide/src/org/openide/text/CloneableEditorSupport.java,v1.117

Comment 5 Marian Mirilovic 2004-06-30 10:02:28 UTC

verified in [nb_dev](200406291800)