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Bug 70314

Summary:	Java.lang.NullPointerException
Product:	javame	Reporter:	rajenderpasricha <rajenderpasricha>
Component:	-- Other --	Assignee:	Adam Sotona <asotona>
Status:	RESOLVED WORKSFORME
Severity:	blocker
Priority:	P3
Version:	5.x
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:
Attachments:	logfile

Description rajenderpasricha 2005-12-13 10:14:27 UTC

Hi,
I tried to open an existing project, stored in D drive of my computer, then I 
faced this problem. I am sending log file too.
Thanks
Rajender Pasricha

Comment 1 rajenderpasricha 2005-12-13 10:24:50 UTC

Created attachment 27783 [details]
logfile

Comment 2 Jan Pokorsky 2005-12-13 11:05:06 UTC

passing to j2me for evaluation

Comment 3 Adam Sotona 2005-12-15 11:15:59 UTC

There are four strange exceptions that need to be analyzed:

1. how can newly created project fail to create project location with NPE

java.lang.NullPointerException
	at
org.netbeans.modules.kjava.j2meproject.J2MEProjectGenerator.createProjectLocation(J2MEProjectGenerator.java:848)
	at
org.netbeans.modules.kjava.j2meproject.J2MEProjectGenerator.createProject(J2MEProjectGenerator.java:335)
	at
org.netbeans.modules.kjava.j2meproject.J2MEProjectGenerator.createNewProject(J2MEProjectGenerator.java:207)
	at
org.netbeans.modules.kjava.j2meproject.ui.wizard.NewProjectIterator.instantiate(NewProjectIterator.java:129)

2. how can GeneratedFilesHelper fail to create a project meta-information with NPE

java.lang.NullPointerException
	at
org.netbeans.spi.project.support.ant.GeneratedFilesHelper$2.run(GeneratedFilesHelper.java:227)
	at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:96)
	at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:450)
	at
org.netbeans.spi.project.support.ant.GeneratedFilesHelper$1.run(GeneratedFilesHelper.java:222)
	at org.openide.util.Mutex.writeAccess(Mutex.java:324)
	at
org.netbeans.spi.project.support.ant.GeneratedFilesHelper.generateBuildScriptFromStylesheet(GeneratedFilesHelper.java:215)
	at
org.netbeans.spi.project.support.ant.GeneratedFilesHelper$7.run(GeneratedFilesHelper.java:641)
	at org.openide.util.Mutex.writeAccess(Mutex.java:324)
	at
org.netbeans.spi.project.support.ant.GeneratedFilesHelper.refreshBuildScript(GeneratedFilesHelper.java:637)
	at
org.netbeans.modules.kjava.j2meproject.J2MEProject$ProjectOpenedHookImpl.projectOpened(J2MEProject.java:411)

3. how can J2MEPhysicalViewProvider fail with NPE on resolving some project files

java.lang.NullPointerException: Must pass a non-null filename
	at
org.netbeans.spi.project.support.ant.AntProjectHelper.resolveFileObject(AntProjectHelper.java:1073)
	at
org.netbeans.modules.kjava.j2meproject.ui.J2MEPhysicalViewProvider$PLookup.createChildren(J2MEPhysicalViewProvider.java:176)
	at
org.netbeans.modules.kjava.j2meproject.ui.J2MEPhysicalViewProvider$J2MEProjectRootNode.<init>(J2MEPhysicalViewProvider.java:206)


4. how can be removed nonexistent classpathpath when there is probably no
previous fail with the classpath registration

java.lang.IllegalArgumentException: Attempt to remove nonexistent path ClassPath[]
	at
org.netbeans.api.java.classpath.GlobalPathRegistry.unregister(GlobalPathRegistry.java:205)
	at
org.netbeans.modules.kjava.j2meproject.J2MEProject$ProjectOpenedHookImpl.projectClosed(J2MEProject.java:449)
	at
org.netbeans.spi.project.ui.ProjectOpenedHook$1.projectClosed(ProjectOpenedHook.java:53)
[catch] at
org.netbeans.modules.project.ui.OpenProjectList.notifyClosed(OpenProjectList.java:532)
	at org.netbeans.modules.project.ui.OpenProjectList.close(OpenProjectList.java:292)
	at
org.netbeans.modules.project.ui.actions.CloseProject.actionPerformed(CloseProject.java:58)



The NPEs should not be thrown because there are many checks for FileObject
existence before further usage and we already expect possible problems with
physical folders/files creation during new project creation and during
construction of project nodes. I'll look at it deeply.

Comment 4 Adam Sotona 2006-01-02 15:02:16 UTC

We need some more information to be able to reproduce the problem.
Closing as WORKSFORME, please reopen if happens again.