java.lang.NullPointerException

Coderanch | Fabien Coutel | 7 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.
  1. 0

    Exception while implementing drag n drop in java 1.6

    Coderanch | 7 years ago | Fabien Coutel
    java.lang.NullPointerException
  2. 0

    Problems when lightweight component is removed

    Google Groups | 2 decades ago | f...@golum.inforg.uniovi.es
    java.lang.NullPointerException
  3. 0

    drag and drop custom dataflavor

    Oracle Community | 1 decade ago | 843807
    java.lang.NullPointerException
  4. Speed up your debug routine!

    Automated exception search integrated into your IDE

  5. 0

    Exceptions all the time: moving mouse pointer over empty explorer area throws NPE

    Netbeans Bugzilla | 2 decades ago | georges
    java.lang.NullPointerException
  6. 0

    Null Pointer Exception when closing Keyboard Shortcuts

    Netbeans Bugzilla | 2 decades ago | kbrown
    java.lang.NullPointerException: null pData

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at javax.swing.plaf.basic.BasicTreeUI.getDropLineRect()
    2. Java RT
      Component.dispatchEvent
      1. javax.swing.plaf.basic.BasicTreeUI.getDropLineRect(Unknown Source)
      2. javax.swing.plaf.basic.BasicTreeUI.access$1600(Unknown Source)
      3. javax.swing.plaf.basic.BasicTreeUI$Handler.repaintDropLocation(Unknown Source)
      4. javax.swing.plaf.basic.BasicTreeUI$Handler.propertyChange(Unknown Source)
      5. java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source)
      6. java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source)
      7. java.awt.Component.firePropertyChange(Unknown Source)
      8. javax.swing.JTree.setDropLocation(Unknown Source)
      9. javax.swing.TransferHandler$DropHandler.setComponentDropLocation(Unknown Source)
      10. javax.swing.TransferHandler$DropHandler.cleanup(Unknown Source)
      11. javax.swing.TransferHandler$DropHandler.drop(Unknown Source)
      12. java.awt.dnd.DropTarget.drop(Unknown Source)
      13. javax.swing.TransferHandler$SwingDropTarget.drop(Unknown Source)
      14. sun.awt.dnd.SunDropTargetContextPeer.processDropMessage(Unknown Source)
      15. sun.awt.dnd.SunDropTargetContextPeer$EventDispatcher.dispatchDropEvent(Unknown Source)
      16. sun.awt.dnd.SunDropTargetContextPeer$EventDispatcher.dispatchEvent(Unknown Source)
      17. sun.awt.dnd.SunDropTargetEvent.dispatch(Unknown Source)
      18. java.awt.Component.dispatchEventImpl(Unknown Source)
      19. java.awt.Container.dispatchEventImpl(Unknown Source)
      20. java.awt.Component.dispatchEvent(Unknown Source)
      21. java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
      22. java.awt.LightweightDispatcher.processDropTargetEvent(Unknown Source)
      23. java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
      24. java.awt.Container.dispatchEventImpl(Unknown Source)
      25. java.awt.Window.dispatchEventImpl(Unknown Source)
      26. java.awt.Component.dispatchEvent(Unknown Source)
      26 frames