java.lang.NullPointerException

Stack Overflow | kloklo90 | 2 weeks ago
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  1. 0

    Naz reported the following issue via email: Hi Guys, Noticed some exceptions when opening the DocumentPropertyPage. I think these were missed as part of its enablement check: 1. Non-resource item is selected 2. Open Bookmarks view 3. Select an item in the view 4. Go to Data > Resource Properties 5. Exception: {quote}!ENTRY org.eclipse.ui 4 0 2012-09-12 09:51:15.055 !MESSAGE Unhandled event loop exception !STACK 0 java.lang.NullPointerException at net.refractions.udig.core.SelectionProviderForwarder.addSelectionChangedListener(SelectionProviderForwarder.java:47) at org.eclipse.ui.actions.SelectionProviderAction.<init>(SelectionProviderAction.java:60) at org.eclipse.ui.dialogs.PropertyDialogAction.<init>(PropertyDialogAction.java:89) at net.refractions.udig.ui.properties.ProperitesCommandHandler.execute(ProperitesCommandHandler.java:55) at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508) at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169) {quote} 1. Tool is selected 2. Select Feature Selection tool 4. Go to Data > Resource 5. Exception: {quote}!ENTRY org.eclipse.ui 4 0 2012-09-12 09:53:20.823 !MESSAGE Unhandled event loop exception !STACK 0 java.lang.NullPointerException at net.refractions.udig.ui.properties.ProperitesCommandHandler.execute(ProperitesCommandHandler.java:57) at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508) at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169) at org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241) at org.eclipse.ui.menus.CommandContributionItem.handleWidgetSelection(CommandContributionItem.java:829) at org.eclipse.ui.menus.CommandContributionItem.access$19(CommandContributionItem.java:815) at org.eclipse.ui.menus.CommandContributionItem$5.handleEvent(CommandContributionItem.java:805) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053) {quote}

    JIRA | 2 years ago | codehaus
    java.lang.NullPointerException
  2. 0

    IBM Worklight not working in Eclipse 3.7.2

    Stack Overflow | 5 years ago | Benjamin Dobell
    org.eclipse.swt.SWTException: Device is disposed at org.eclipse.swt.SWT.error(SWT.java:4282) at org.eclipse.swt.SWT.error(SWT.java:4197) at org.eclipse.swt.SWT.error(SWT.java:4168) at org.eclipse.swt.widgets.Display.error(Display.java:1065) at org.eclipse.swt.widgets.Display.checkDevice(Display.java:619) at org.eclipse.swt.widgets.Display.getShells(Display.java:1704) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:72) at org.eclipse.equinox.internal.p2.ui.sdk.PreloadingRepositoryHandler.execute(PreloadingRepositoryHandler.java:66) at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508) at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169) at org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241) at org.eclipse.ui.menus.CommandContributionItem.handleWidgetSelection(CommandContributionItem.java:829) at org.eclipse.ui.menus.CommandContributionItem.access$19(CommandContributionItem.java:815) at org.eclipse.ui.menus.CommandContributionItem$5.handleEvent(CommandContributionItem.java:805)
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    Filters and sorters are insensitive some times and trigger exception

    Eclipse Bugzilla | 5 years ago | lmcbout
    org.eclipse.core.commands.NotEnabledException: Trying to execute the disabled command org.eclipse.mylyn.reviews.r4e.ui.commands.sorters.ReviewTypeSort

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at com.magic.gui.commands.AboutActionStableHandler.execute()
    2. com.magic.gui
      AboutActionStableHandler.execute
      1. com.magic.gui.commands.AboutActionStableHandler.execute(AboutActionStableHandler.java:28)
      1 frame
    3. Workbench
      HandlerProxy.execute
      1. org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:290)
      1 frame
    4. Commands
      ParameterizedCommand.executeWithChecks
      1. org.eclipse.core.commands.Command.executeWithChecks(Command.java:499)
      2. org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
      2 frames
    5. Workbench
      CommandContributionItem$5.handleEvent
      1. org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169)
      2. org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241)
      3. org.eclipse.ui.menus.CommandContributionItem.handleWidgetSelection(CommandContributionItem.java:829)
      4. org.eclipse.ui.menus.CommandContributionItem.access$19(CommandContributionItem.java:815)
      5. org.eclipse.ui.menus.CommandContributionItem$5.handleEvent(CommandContributionItem.java:805)
      5 frames
    6. RWT
      Display.readAndDispatch
      1. org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
      2. org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
      3. org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4169)
      4. org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3758)
      4 frames
    7. Eclipse UI
      Workbench$7.run
      1. org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2701)
      2. org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2665)
      3. org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499)
      4. org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679)
      4 frames
    8. Databinding
      Realm.runWithDefault
      1. org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
      1 frame
    9. Eclipse UI
      Workbench.createAndRunWorkbench
      1. org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668)
      1 frame
    10. Eclipse UI
      PlatformUI.createAndRunWorkbench
      1. org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
      1 frame
    11. com.magic.rcp
      Application.start
      1. com.magic.rcp.Application.start(Application.java:87)
      1 frame
    12. Equinox Container
      EclipseAppHandle.run
      1. org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
      1 frame
    13. Eclipse OSGi
      EclipseStarter.run
      1. org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
      2. org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
      3. org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353)
      4. org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
      4 frames
    14. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
      4. java.lang.reflect.Method.invoke(Unknown Source)
      4 frames
    15. Equinox
      Main.main
      1. org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
      2. org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
      3. org.eclipse.equinox.launcher.Main.run(Main.java:1438)
      4. org.eclipse.equinox.launcher.Main.main(Main.java:1414)
      4 frames