java.lang.NullPointerException

Oracle Community | Raj Jamadagni | 4 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.

Root Cause Analysis

  1. java.lang.NullPointerException

    No message provided

    at com.oracle.jdeveloper.nbwindowsystem.NbEditorContainer.componentShowing()
  2. com.oracle.jdeveloper
    NbEditorContainer.componentShowing
    1. com.oracle.jdeveloper.nbwindowsystem.NbEditorContainer.componentShowing(NbEditorContainer.java:467)
    1 frame
  3. org.openide.windows
    WindowManager.componentShowing
    1. org.openide.windows.WindowManager.componentShowing(WindowManager.java:339)
    1 frame
  4. org.netbeans.core
    GuiRunLevel$InitWinSys.run
    1. org.netbeans.core.windows.WindowManagerImpl.componentShowing(WindowManagerImpl.java:1191)
    2. org.netbeans.core.windows.WindowManagerImpl.specialPersistenceCompShow(WindowManagerImpl.java:1198)
    3. org.netbeans.core.windows.PersistenceHandler.load(PersistenceHandler.java:248)
    4. org.netbeans.core.windows.WindowSystemImpl.load(WindowSystemImpl.java:81)
    5. org.netbeans.core.GuiRunLevel$InitWinSys.run(GuiRunLevel.java:231)
    5 frames
  5. Java RT
    EventQueue.dispatchEvent
    1. java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
    2. java.awt.EventQueue.dispatchEventImpl(EventQueue.java:733)
    3. java.awt.EventQueue.access$200(EventQueue.java:103)
    4. java.awt.EventQueue$3.run(EventQueue.java:694)
    5. java.awt.EventQueue$3.run(EventQueue.java:692)
    6. java.security.AccessController.doPrivileged(Native Method)
    7. java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
    8. java.awt.EventQueue.dispatchEvent(EventQueue.java:703)
    8 frames
  6. oracle.javatools.internal
    EventQueueWrapper.dispatchEvent
    1. oracle.javatools.internal.ui.EventQueueWrapper._dispatchEvent(EventQueueWrapper.java:169)
    2. oracle.javatools.internal.ui.EventQueueWrapper.dispatchEvent(EventQueueWrapper.java:151)
    2 frames
  7. Java RT
    EventDispatchThread.run
    1. java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
    2. java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
    3. java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
    4. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
    5. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
    6. java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
    6 frames