Description Amin Ahmad 2005-05-20 05:57:21 EDT

I have a fairly large workspace (with around 30--40 open projects) that I was
using with previous versions of eclipse. However, after upgrading to 3.1M7, the
workspace is not very usable. One of the most common errors I see in the log is:


!ENTRY org.eclipse.core.resources 4 2 2005-05-20 05:30:12.921
!MESSAGE Problems occurred when invoking code from plug-in:
"org.eclipse.core.resources".
!STACK 0
java.lang.NullPointerException
	at
org.eclipse.jdt.internal.core.JavaProject.getResolvedClasspath(JavaProject.java:2079)
	at
org.eclipse.jdt.internal.core.JavaProject.getResolvedClasspath(JavaProject.java:1970)
	at
org.eclipse.jdt.internal.core.DeltaProcessingState.initializeRoots(DeltaProcessingState.java:269)
	at
org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:715)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1716)
	at org.eclipse.jdt.core.JavaCore.run(JavaCore.java:3680)
	at org.eclipse.jdt.core.JavaCore.setClasspathContainer(JavaCore.java:3854)
	at
org.eclipse.pde.internal.core.ModelEntry.updateClasspathContainer(ModelEntry.java:110)
	at
org.eclipse.pde.internal.core.RequiredPluginsInitializer.initialize(RequiredPluginsInitializer.java:40)
	at
org.eclipse.jdt.internal.core.JavaModelManager.initializeContainer(JavaModelManager.java:1421)
	at
org.eclipse.jdt.internal.core.JavaModelManager.initializeAllContainers(JavaModelManager.java:1381)
	at
org.eclipse.jdt.internal.core.JavaModelManager.getClasspathContainer(JavaModelManager.java:974)
	at org.eclipse.jdt.core.JavaCore.getClasspathContainer(JavaCore.java:1320)
	at
org.eclipse.jdt.internal.core.JavaProject.getResolvedClasspath(JavaProject.java:2062)
	at
org.eclipse.jdt.internal.core.JavaProject.getResolvedClasspath(JavaProject.java:1970)
	at
org.eclipse.jdt.internal.core.DeltaProcessor.updateClasspathMarkers(DeltaProcessor.java:2130)
	at
org.eclipse.jdt.internal.core.DeltaProcessor.resourceChanged(DeltaProcessor.java:1819)
	at
org.eclipse.jdt.internal.core.DeltaProcessingState.resourceChanged(DeltaProcessingState.java:436)
	at
org.eclipse.core.internal.events.NotificationManager$2.run(NotificationManager.java:276)
	at
org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1029)
	at org.eclipse.core.runtime.Platform.run(Platform.java:775)
	at
org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:270)
	at
org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:144)
	at
org.eclipse.core.internal.resources.Workspace.broadcastBuildEvent(Workspace.java:185)
	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:137)
	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:200)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:67)


Though I also see errors like:


!ENTRY org.eclipse.core.resources 4 2 2005-05-19 04:30:58.00
!MESSAGE Problems occurred when invoking code from plug-in:
"org.eclipse.core.resources".
!STACK 0
java.lang.NullPointerException
	at org.eclipse.jdt.internal.core.JavaProject.encodeClasspath(JavaProject.java:935)
	at
org.eclipse.jdt.internal.core.JavaModelManager.saving(JavaModelManager.java:1986)
	at
org.eclipse.core.internal.resources.SaveManager.executeLifecycle(SaveManager.java:324)
	at org.eclipse.core.internal.resources.SaveManager$1.run(SaveManager.java:153)
	at
org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1029)
	at org.eclipse.core.runtime.Platform.run(Platform.java:775)
	at
org.eclipse.core.internal.resources.SaveManager.broadcastLifecycle(SaveManager.java:156)
	at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:957)
	at
org.eclipse.core.internal.resources.DelayedSnapshotJob.run(DelayedSnapshotJob.java:44)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:67)

I'm not sure what's going on and any help would be appreciated. The end result
of these errors is that many resources in my project are not properly shown. The
workbench is flaky and not too stable. Anytime I shut down the workspace, I also
get save errors.

thanks,
Amin