java.lang.NullPointerException

Oracle Community | 807581 | 1 decade ago
  1. 0

    cannot open "project stucture..." dialog

    GitHub | 2 years ago | liudng
    java.lang.NullPointerException
  2. 0

    Not open project structure

    GitHub | 2 years ago | dashaus
    java.lang.NullPointerException
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  4. 0

    Error on go fmt

    GitHub | 2 years ago | dashaus
    java.lang.NullPointerException

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Root Cause Analysis

  1. java.lang.NullPointerException

    No message provided

    at java.awt.dnd.DropTarget.addNotify()
  2. Java RT
    Container.add
    1. java.awt.dnd.DropTarget.addNotify(DropTarget.java:454)
    2. java.awt.Component.addNotify(Component.java:5271)
    3. java.awt.Container.addNotify(Container.java:1949)
    4. javax.swing.JComponent.addNotify(JComponent.java:4141)
    5. java.awt.Container.addNotify(Container.java:1957)
    6. javax.swing.JComponent.addNotify(JComponent.java:4141)
    7. java.awt.Container.addNotify(Container.java:1957)
    8. javax.swing.JComponent.addNotify(JComponent.java:4141)
    9. java.awt.Container.addImpl(Container.java:486)
    10. java.awt.Container.add(Container.java:368)
    10 frames
  3. org.netbeans.core
    ModuleSelectionPanel.readSettings
    1. org.netbeans.core.ui.ModuleSelectionPanel.initComponents(ModuleSelectionPanel.java:145)
    2. org.netbeans.core.ui.ModuleSelectionPanel.addNotify(ModuleSelectionPanel.java:74)
    3. org.netbeans.core.ui.ModuleSelectionPanel.readSettings(ModuleSelectionPanel.java:221)
    3 frames
  4. org.openide
    WizardDescriptor.updateState
    1. org.openide.WizardDescriptor.updateState(WizardDescriptor.java:450)
    1 frame
  5. org.netbeans.core
    SetupWizard$InitializedWizardDescriptor.updateState
    1. org.netbeans.core.ui.SetupWizard$InitializedWizardDescriptor.updateState(SetupWizard.java:403)
    1 frame
  6. org.openide
    WizardDescriptor$Listener.actionPerformed
    1. org.openide.WizardDescriptor$Listener.actionPerformed(WizardDescriptor.java:948)
    1 frame
  7. Java RT
    Dialog.show
    1. javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1722)
    2. javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1775)
    3. javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:414)
    4. javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:253)
    5. javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:261)
    6. java.awt.Component.processMouseEvent(Component.java:4906)
    7. java.awt.Component.processEvent(Component.java:4732)
    8. java.awt.Container.processEvent(Container.java:1337)
    9. java.awt.Component.dispatchEventImpl(Component.java:3476)
    10. java.awt.Container.dispatchEventImpl(Container.java:1399)
    11. java.awt.Component.dispatchEvent(Component.java:3343)
    12. java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3302)
    13. java.awt.LightweightDispatcher.processMouseEvent(Container.java:3014)
    14. java.awt.LightweightDispatcher.dispatchEvent(Container.java:2967)
    15. java.awt.Container.dispatchEventImpl(Container.java:1373)
    16. java.awt.Window.dispatchEventImpl(Window.java:1459)
    17. java.awt.Component.dispatchEvent(Component.java:3343)
    18. java.awt.EventQueue.dispatchEvent(EventQueue.java:439)[catch]
    19. java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:150)
    20. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)
    21. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:131)
    22. java.awt.Dialog.show(Dialog.java:498)
    22 frames
  8. org.netbeans.core
    NbPresenter.run
    1. org.netbeans.core.NbPresenter.superShow(NbPresenter.java:672)
    2. org.netbeans.core.NbPresenter.run(NbPresenter.java:695)
    2 frames
  9. org.openide.util
    Mutex.readAccess
    1. org.openide.util.Mutex.doEventAccess(Mutex.java:917)
    2. org.openide.util.Mutex.readAccess(Mutex.java:162)
    2 frames
  10. org.netbeans.core
    NonGui$2.run
    1. org.netbeans.core.NbPresenter.show(NbPresenter.java:676)
    2. org.netbeans.core.ui.SetupWizard.show(SetupWizard.java:287)
    3. org.netbeans.core.ui.SetupWizard.showSetupWizard(SetupWizard.java:364)
    4. org.netbeans.core.NonGui$2.run(NonGui.java:555)
    4 frames
  11. Java RT
    EventDispatchThread.run
    1. java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:160)
    2. java.awt.EventQueue.dispatchEvent(EventQueue.java:437)
    3. java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:150)
    4. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)
    5. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:131)
    6. java.awt.EventDispatchThread.run(EventDispatchThread.java:99)
    6 frames