Project: JDT
Bug 250806 Activating working set updaters for bundle org.eclipse.jdt.ui has encountered a problem.
Reported: 2008-10-14 12:19:59 | Status: verified fixed

Build ID: M20080911-1700 Steps To Reproduce: 1.Go to Problems View --> Configure Contents 2. Set Scope ON working set 3. create a working set that contain not all project, just some 4. restart eclipse 5 I got this error and stack trace with NPE bellow I guess that NullPointerException at JavaWorkingSetUpdater.checkElementExistence(JavaWorkingSetUpdater.java:223) is a real problem.... More information: org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.NullPointerException) at org.eclipse.swt.SWT.error(SWT.java:3777) at org.eclipse.swt.SWT.error(SWT.java:3695) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:136) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3800) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3425) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:386) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504) at org.eclipse.equinox.launcher.Main.run(Main.java:1236) Caused by: java.lang.NullPointerException at org.eclipse.jdt.internal.ui.workingsets.JavaWorkingSetUpdater.checkElementExistence(JavaWorkingSetUpdater.java:223) at org.eclipse.jdt.internal.ui.workingsets.JavaWorkingSetUpdater.add(JavaWorkingSetUpdater.java:78) at org.eclipse.ui.internal.AbstractWorkingSetManager$5.runInUIThread(AbstractWorkingSetManager.java:647) at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:94) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:133) ... 22 more eclipse.buildId=M20080911-1700 java.version=1.6.0_07 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=ru_RU Command-line arguments: -os win32 -ws win32 -arch x86

Files changed in fix:
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/workingsets/JavaWorkingSetUpdater.java