java.lang.NullPointerException

Oracle Community | 807594 | 1 decade ago
  1. 0

    Problem with embeded JFileChooser...I think

    Oracle Community | 1 decade ago | 807594
    java.lang.NullPointerException
  2. 0

    Android: Saving Map State in Google map

    Stack Overflow | 11 months ago | Junie Negentien
    java.lang.RuntimeException: Unable to resume activity {com.ourThesis.junieNegentien2015/com.ourThesis.junieNegentien2015.MainActivity}: java.lang.NullPointerException
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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at jd_back$1.valueChanged()
    2. Unknown
      jd_back$1.valueChanged
      1. jd_back$1.valueChanged(jd_back.java:56)
      1 frame
    3. Java RT
      DefaultTreeModel.reload
      1. javax.swing.JTree.fireValueChanged(JTree.java:2406)
      2. javax.swing.JTree$TreeSelectionRedirector.valueChanged(JTree.java:2777)
      3. javax.swing.tree.DefaultTreeSelectionModel.fireValueChanged(DefaultTreeSelectionModel.java:629)
      4. javax.swing.tree.DefaultTreeSelectionModel.clearSelection(DefaultTreeSelectionModel.java:570)
      5. javax.swing.tree.VariableHeightLayoutCache.rebuild(VariableHeightLayoutCache.java:740)
      6. javax.swing.tree.VariableHeightLayoutCache.treeStructureChanged(VariableHeightLayoutCache.java:626)
      7. javax.swing.plaf.basic.BasicTreeUI$TreeModelHandler.treeStructureChanged(BasicTreeUI.java:2469)
      8. javax.swing.tree.DefaultTreeModel.fireTreeStructureChanged(DefaultTreeModel.java:561)
      9. javax.swing.tree.DefaultTreeModel.reload(DefaultTreeModel.java:277)
      10. javax.swing.tree.DefaultTreeModel.reload(DefaultTreeModel.java:194)
      10 frames
    4. Unknown
      jd_back$command_listner.mouseClicked
      1. jd_back.updateTree(jd_back.java:109)
      2. jd_back$command_listner.mouseClicked(jd_back.java:73)
      2 frames
    5. Java RT
      EventDispatchThread.run
      1. java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:208)
      2. java.awt.Component.processMouseEvent(Component.java:5137)
      3. java.awt.Component.processEvent(Component.java:4931)
      4. java.awt.Container.processEvent(Container.java:1566)
      5. java.awt.Component.dispatchEventImpl(Component.java:3639)
      6. java.awt.Container.dispatchEventImpl(Container.java:1623)
      7. java.awt.Component.dispatchEvent(Component.java:3480)
      8. java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3450)
      9. java.awt.LightweightDispatcher.processMouseEvent(Container.java:3174)
      10. java.awt.LightweightDispatcher.dispatchEvent(Container.java:3095)
      11. java.awt.Container.dispatchEventImpl(Container.java:1609)
      12. java.awt.Window.dispatchEventImpl(Window.java:1590)
      13. java.awt.Component.dispatchEvent(Component.java:3480)
      14. java.awt.EventQueue.dispatchEvent(EventQueue.java:450)
      15. java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:197)
      16. java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
      17. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:144)
      18. java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)
      19. java.awt.EventDispatchThread.run(EventDispatchThread.java:99)
      19 frames