java.lang.NullPointerException

Appcelerator JIRA | Allen Yeung | 6 years ago
tip
Your exception is missing from the Samebug knowledge base.
Here are the best solutions we found on the Internet.
Click on the to mark the helpful solution and get rewards for you help.
  1. 0

    When I open the samples view, I try to move it into the same group as the App Explorer. When I start dragging the tab, it just disappears, and throws an NPE: java.lang.NullPointerException at org.eclipse.ui.internal.FastViewPane.hideView(FastViewPane.java:582) at org.eclipse.ui.internal.Perspective.hideFastView(Perspective.java:571) at org.eclipse.ui.internal.Perspective.setActiveFastView(Perspective.java:1933) at org.eclipse.ui.internal.Perspective.setActiveFastView(Perspective.java:1952) at org.eclipse.ui.internal.Perspective.toggleFastView(Perspective.java:2365) at org.eclipse.ui.internal.WorkbenchPage.toggleFastView(WorkbenchPage.java:3873) at org.eclipse.ui.internal.WorkbenchPage.hideFastView(WorkbenchPage.java:3861) at org.eclipse.ui.internal.FastViewPane$2.dragStart(FastViewPane.java:156) at org.eclipse.ui.internal.FastViewPane$2.dragStart(FastViewPane.java:136) at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation$1.handleEvent(TabbedStackPresentation.java:118) at org.eclipse.ui.internal.presentations.util.AbstractTabFolder.fireEvent(AbstractTabFolder.java:269) at org.eclipse.ui.internal.presentations.util.AbstractTabFolder.fireEvent(AbstractTabFolder.java:282) at org.eclipse.ui.internal.presentations.util.AbstractTabFolder.handleDragStarted(AbstractTabFolder.java:366) at org.eclipse.ui.internal.presentations.util.AbstractTabFolder$2.handleEvent(AbstractTabFolder.java:67) at org.eclipse.ui.presentations.PresentationUtil.handleMouseMove(PresentationUtil.java:110) at org.eclipse.ui.presentations.PresentationUtil.access$4(PresentationUtil.java:95) at org.eclipse.ui.presentations.PresentationUtil$2.handleEvent(PresentationUtil.java:63) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:3776) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1367) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1390) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1375) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1187) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3622) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3277) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at com.aptana.rcp.IDEApplication.start(IDEApplication.java:125) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) 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:369) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:592) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574) at org.eclipse.equinox.launcher.Main.run(Main.java:1407) at org.eclipse.equinox.launcher.Main.main(Main.java:1383)

    Appcelerator JIRA | 6 years ago | Allen Yeung
    java.lang.NullPointerException
  2. 0

    When I open the samples view, I try to move it into the same group as the App Explorer. When I start dragging the tab, it just disappears, and throws an NPE: java.lang.NullPointerException at org.eclipse.ui.internal.FastViewPane.hideView(FastViewPane.java:582) at org.eclipse.ui.internal.Perspective.hideFastView(Perspective.java:571) at org.eclipse.ui.internal.Perspective.setActiveFastView(Perspective.java:1933) at org.eclipse.ui.internal.Perspective.setActiveFastView(Perspective.java:1952) at org.eclipse.ui.internal.Perspective.toggleFastView(Perspective.java:2365) at org.eclipse.ui.internal.WorkbenchPage.toggleFastView(WorkbenchPage.java:3873) at org.eclipse.ui.internal.WorkbenchPage.hideFastView(WorkbenchPage.java:3861) at org.eclipse.ui.internal.FastViewPane$2.dragStart(FastViewPane.java:156) at org.eclipse.ui.internal.FastViewPane$2.dragStart(FastViewPane.java:136) at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation$1.handleEvent(TabbedStackPresentation.java:118) at org.eclipse.ui.internal.presentations.util.AbstractTabFolder.fireEvent(AbstractTabFolder.java:269) at org.eclipse.ui.internal.presentations.util.AbstractTabFolder.fireEvent(AbstractTabFolder.java:282) at org.eclipse.ui.internal.presentations.util.AbstractTabFolder.handleDragStarted(AbstractTabFolder.java:366) at org.eclipse.ui.internal.presentations.util.AbstractTabFolder$2.handleEvent(AbstractTabFolder.java:67) at org.eclipse.ui.presentations.PresentationUtil.handleMouseMove(PresentationUtil.java:110) at org.eclipse.ui.presentations.PresentationUtil.access$4(PresentationUtil.java:95) at org.eclipse.ui.presentations.PresentationUtil$2.handleEvent(PresentationUtil.java:63) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:3776) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1367) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1390) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1375) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1187) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3622) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3277) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at com.aptana.rcp.IDEApplication.start(IDEApplication.java:125) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) 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:369) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:592) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574) at org.eclipse.equinox.launcher.Main.run(Main.java:1407) at org.eclipse.equinox.launcher.Main.main(Main.java:1383)

    Appcelerator JIRA | 6 years ago | Allen Yeung
    java.lang.NullPointerException
  3. Speed up your debug routine!

    Automated exception search integrated into your IDE

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.eclipse.ui.internal.FastViewPane.hideView()
    2. Eclipse UI
      FastViewPane$2.dragStart
      1. org.eclipse.ui.internal.FastViewPane.hideView(FastViewPane.java:582)
      2. org.eclipse.ui.internal.Perspective.hideFastView(Perspective.java:571)
      3. org.eclipse.ui.internal.Perspective.setActiveFastView(Perspective.java:1933)
      4. org.eclipse.ui.internal.Perspective.setActiveFastView(Perspective.java:1952)
      5. org.eclipse.ui.internal.Perspective.toggleFastView(Perspective.java:2365)
      6. org.eclipse.ui.internal.WorkbenchPage.toggleFastView(WorkbenchPage.java:3873)
      7. org.eclipse.ui.internal.WorkbenchPage.hideFastView(WorkbenchPage.java:3861)
      8. org.eclipse.ui.internal.FastViewPane$2.dragStart(FastViewPane.java:156)
      9. org.eclipse.ui.internal.FastViewPane$2.dragStart(FastViewPane.java:136)
      9 frames
    3. Workbench
      PresentationUtil$2.handleEvent
      1. org.eclipse.ui.internal.presentations.util.TabbedStackPresentation$1.handleEvent(TabbedStackPresentation.java:118)
      2. org.eclipse.ui.internal.presentations.util.AbstractTabFolder.fireEvent(AbstractTabFolder.java:269)
      3. org.eclipse.ui.internal.presentations.util.AbstractTabFolder.fireEvent(AbstractTabFolder.java:282)
      4. org.eclipse.ui.internal.presentations.util.AbstractTabFolder.handleDragStarted(AbstractTabFolder.java:366)
      5. org.eclipse.ui.internal.presentations.util.AbstractTabFolder$2.handleEvent(AbstractTabFolder.java:67)
      6. org.eclipse.ui.presentations.PresentationUtil.handleMouseMove(PresentationUtil.java:110)
      7. org.eclipse.ui.presentations.PresentationUtil.access$4(PresentationUtil.java:95)
      8. org.eclipse.ui.presentations.PresentationUtil$2.handleEvent(PresentationUtil.java:63)
      8 frames
    4. RWT
      Display.readAndDispatch
      1. org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
      2. org.eclipse.swt.widgets.Display.sendEvent(Display.java:3776)
      3. org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1367)
      4. org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1390)
      5. org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1375)
      6. org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1187)
      7. org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3622)
      8. org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3277)
      8 frames
    5. Eclipse UI
      Workbench$7.run
      1. org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
      2. org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
      3. org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
      4. org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
      4 frames
    6. Databinding
      Realm.runWithDefault
      1. org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
      1 frame
    7. Eclipse UI
      Workbench.createAndRunWorkbench
      1. org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
      1 frame
    8. Eclipse UI
      PlatformUI.createAndRunWorkbench
      1. org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
      1 frame
    9. com.aptana.rcp
      IDEApplication.start
      1. com.aptana.rcp.IDEApplication.start(IDEApplication.java:125)
      1 frame
    10. Equinox Container
      EclipseAppHandle.run
      1. org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
      1 frame
    11. 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:369)
      4. org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
      4 frames
    12. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      4. java.lang.reflect.Method.invoke(Method.java:592)
      4 frames
    13. Equinox
      Main.main
      1. org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
      2. org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
      3. org.eclipse.equinox.launcher.Main.run(Main.java:1407)
      4. org.eclipse.equinox.launcher.Main.main(Main.java:1383)
      4 frames