java.lang.NullPointerException

robocode | hanty | 9 years ago
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  1. 0

    Exception in installing robocode1.5.1

    robocode | 9 years ago | hanty
    java.lang.NullPointerException
  2. 0

    Changing Look and Feel of Java Application

    Stack Overflow | 11 months ago | user3721668
    java.lang.NullPointerException

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at javax.swing.MultiUIDefaults.getUIError()
    2. Java RT
      JOptionPane.showConfirmDialog
      1. javax.swing.MultiUIDefaults.getUIError(MultiUIDefaults.java:117)
      2. javax.swing.UIDefaults.getUI(UIDefaults.java:741)
      3. javax.swing.UIManager.getUI(UIManager.java:1012)
      4. javax.swing.JOptionPane.updateUI(JOptionPane.java:1859)
      5. javax.swing.JOptionPane.<init>(JOptionPane.java:1822)
      6. javax.swing.JOptionPane.showOptionDialog(JOptionPane.java:841)
      7. javax.swing.JOptionPane.showConfirmDialog(JOptionPane.java:779)
      8. javax.swing.JOptionPane.showConfirmDialog(JOptionPane.java:741)
      8 frames
    3. robocode
      AutoExtract.main
      1. robocode.AutoExtract.main(Unknown Source)
      1 frame