java.lang.NullPointerException

Coderanch | Jon Swanson | 6 years ago
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  1. 0

    Getting Java running on RHEL 5

    Coderanch | 6 years ago | Jon Swanson
    java.lang.NullPointerException

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at TestGui.actionPerformed()
    2. Unknown
      TestGui.actionPerformed
      1. TestGui.actionPerformed(TestGui.java:38)
      1 frame
    3. Java RT
      EventDispatchThread.run
      1. javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
      2. javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
      3. javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
      4. javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
      5. javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
      6. java.awt.Component.processMouseEvent(Component.java:6288)
      7. javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
      8. java.awt.Component.processEvent(Component.java:6053)
      9. java.awt.Container.processEvent(Container.java:2041)
      10. java.awt.Component.dispatchEventImpl(Component.java:4651)
      11. java.awt.Container.dispatchEventImpl(Container.java:2099)
      12. java.awt.Component.dispatchEvent(Component.java:4481)
      13. java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577)
      14. java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
      15. java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
      16. java.awt.Container.dispatchEventImpl(Container.java:2085)
      17. java.awt.Window.dispatchEventImpl(Window.java:2478)
      18. java.awt.Component.dispatchEvent(Component.java:4481)
      19. java.awt.EventQueue.dispatchEventImpl(EventQueue.java:643)
      20. java.awt.EventQueue.access$000(EventQueue.java:84)
      21. java.awt.EventQueue$1.run(EventQueue.java:602)
      22. java.awt.EventQueue$1.run(EventQueue.java:600)
      23. java.security.AccessController.doPrivileged(Native Method)
      24. java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
      25. java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
      26. java.awt.EventQueue$2.run(EventQueue.java:616)
      27. java.awt.EventQueue$2.run(EventQueue.java:614)
      28. java.security.AccessController.doPrivileged(Native Method)
      29. java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
      30. java.awt.EventQueue.dispatchEvent(EventQueue.java:613)
      31. java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
      32. java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
      33. java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
      34. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
      35. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
      36. java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
      36 frames