java.lang.NullPointerException

Oracle Community | 807554 | 1 decade ago
  1. 0

    Need help regarding printing in JAVA

    Oracle Community | 1 decade ago | 807554
    java.lang.NullPointerException
  2. 0

    Paint swing Component to Graphics

    Stack Overflow | 4 years ago | rogi
    java.lang.NullPointerException
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  4. 0

    Swing UI Refresh: Background thread prints exception

    Stack Overflow | 2 years ago
    java.lang.NullPointerException

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at sun.awt.windows.WPathGraphics.hasTransparentPixels()
    2. Java RT
      JComponent.paint
      1. sun.awt.windows.WPathGraphics.hasTransparentPixels(Unknown Source)
      2. sun.awt.windows.WPathGraphics.drawImageToGDI(Unknown Source)
      3. sun.awt.windows.WPathGraphics.drawImage(Unknown Source)
      4. sun.awt.windows.WPathGraphics.drawImage(Unknown Source)
      5. sun.awt.windows.WPathGraphics.drawImage(Unknown Source)
      6. sun.awt.windows.WPathGraphics.drawImage(Unknown Source)
      7. sun.awt.windows.WPathGraphics.drawImage(Unknown Source)
      8. javax.swing.JComponent.paintWithOffscreenBuffer(Unknown Source)
      9. javax.swing.JComponent.paintDoubleBuffered(Unknown Source)
      10. javax.swing.JComponent.paint(Unknown Source)
      10 frames
    3. Unknown
      ComponentPrinterFrame.print
      1. ComponentPrinterFrame.print(ComponentPrinterFrame.java:68)
      1 frame
    4. Java RT
      RasterPrinterJob.print
      1. sun.print.RasterPrinterJob.printPage(Unknown Source)
      2. sun.print.RasterPrinterJob.print(Unknown Source)
      3. sun.print.RasterPrinterJob.print(Unknown Source)
      3 frames
    5. Unknown
      ComponentPrinterFrame$1.actionPerformed
      1. ComponentPrinterFrame$1.actionPerformed(ComponentPrinterFrame.java:35)
      1 frame
    6. Java RT
      EventDispatchThread.run
      1. javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
      2. javax.swing.AbstractButton$ForwardActionEvents.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. java.awt.Component.processEvent(Unknown Source)
      8. java.awt.Container.processEvent(Unknown Source)
      9. java.awt.Component.dispatchEventImpl(Unknown Source)
      10. java.awt.Container.dispatchEventImpl(Unknown Source)
      11. java.awt.Component.dispatchEvent(Unknown Source)
      12. java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
      13. java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
      14. java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
      15. java.awt.Container.dispatchEventImpl(Unknown Source)
      16. java.awt.Window.dispatchEventImpl(Unknown Source)
      17. java.awt.Component.dispatchEvent(Unknown Source)
      18. java.awt.EventQueue.dispatchEvent(Unknown Source)
      19. java.awt.EventDispatchThread.pumpOneEvent(Unknown Source)
      20. java.awt.EventDispatchThread.pumpEvents(Unknown Source)
      21. java.awt.EventDispatchThread.pumpEvents(Unknown Source)
      22. java.awt.EventDispatchThread.run(Unknown Source)
      22 frames