java.lang.NullPointerException

Stack Overflow | user3625654 | 8 months ago
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Root Cause Analysis

  1. java.lang.NullPointerException

    No message provided

    at RefactoredXMLEditor$myActionListener.actionPerformed()
  2. Unknown
    RefactoredXMLEditor$myActionListener.actionPerformed
    1. RefactoredXMLEditor$myActionListener.actionPerformed(RefactoredXMLEditor.java:559)
    1 frame
  3. Java RT
    EventDispatchThread.run
    1. javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
    2. javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
    3. javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
    4. javax.swing.DefaultButtonModel.setPressed(Unknown Source)
    5. javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
    6. java.awt.Component.processMouseEvent(Unknown Source)
    7. javax.swing.JComponent.processMouseEvent(Unknown Source)
    8. java.awt.Component.processEvent(Unknown Source)
    9. java.awt.Container.processEvent(Unknown Source)
    10. java.awt.Component.dispatchEventImpl(Unknown Source)
    11. java.awt.Container.dispatchEventImpl(Unknown Source)
    12. java.awt.Component.dispatchEvent(Unknown Source)
    13. java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
    14. java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
    15. java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
    16. java.awt.Container.dispatchEventImpl(Unknown Source)
    17. java.awt.Component.dispatchEvent(Unknown Source)
    18. java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    19. java.awt.EventQueue.access$300(Unknown Source)
    20. java.awt.EventQueue$3.run(Unknown Source)
    21. java.awt.EventQueue$3.run(Unknown Source)
    22. java.security.AccessController.doPrivileged(Native Method)
    23. java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    24. java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    25. java.awt.EventQueue$4.run(Unknown Source)
    26. java.awt.EventQueue$4.run(Unknown Source)
    27. java.security.AccessController.doPrivileged(Native Method)
    28. java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    29. java.awt.EventQueue.dispatchEvent(Unknown Source)
    30. java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    31. java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    32. java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    33. java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    34. java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    35. java.awt.EventDispatchThread.run(Unknown Source)
    35 frames