java.lang.NullPointerException

JDK Bug System | Webbug Group | 5 months 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

    FULL PRODUCT VERSION : [Java cpu=23% screen=1280x800 ppi=96 http://www.boardspace.net/java/v1.65a/ 1.8.0_101 Oracle Corporation http://java.oracle.com/ 52.0 Windows 7 x86 6.1] (Root 1 threads)Error in RootApplet main loop EXTRA RELEVANT SYSTEM CONFIGURATION : vanilla windows 10 A DESCRIPTION OF THE PROBLEM : Getting a NullPointerException from way down in the bowels of container.add is not in the manual. error is : java.lang.NullPointerException java.lang.NullPointerException at java.awt.EventQueue.setCurrentEventAndMostRecentTime(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.Container.addImpl(Unknown Source) at java.awt.Container.add(Unknown Source) at javax.swing.JMenuBar.add(Unknown Source) at online.common.XFrame.addToMenuBar(XFrame.java:132) at online.common.XFrame.addToMenuBar(XFrame.java:125) at online.common.LPanel.addToMenuBar(LPanel.java:223) at online.common.LPanel.addToMenuBar(LPanel.java:215) at online.common.commonLobby.init(commonLobby.java:350) at online.common.commonRootApplet.StartLframe(commonRootApplet.java:347) at online.common.commonRootApplet.run(commonRootApplet.java:394) at java.lang.Thread.run(Unknown Source) STEPS TO FOLLOW TO REPRODUCE THE PROBLEM : Not easily reproducable. Probably is the result of window/show interacting with starting the process that uses the window. EXPECTED VERSUS ACTUAL BEHAVIOR : EXPECTED - NullPointerException is always wrong. ERROR MESSAGES/STACK TRACES THAT OCCUR : Getting a NullPointerException from way down in the bowels of container.add is not in the manual. error is : java.lang.NullPointerException java.lang.NullPointerException at java.awt.EventQueue.setCurrentEventAndMostRecentTime(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.Container.addImpl(Unknown Source) at java.awt.Container.add(Unknown Source) at javax.swing.JMenuBar.add(Unknown Source) at online.common.XFrame.addToMenuBar(XFrame.java:132) at online.common.XFrame.addToMenuBar(XFrame.java:125) at online.common.LPanel.addToMenuBar(LPanel.java:223) at online.common.LPanel.addToMenuBar(LPanel.java:215) at online.common.commonLobby.init(commonLobby.java:350) at online.common.commonRootApplet.StartLframe(commonRootApplet.java:347) at online.common.commonRootApplet.run(commonRootApplet.java:394) at java.lang.Thread.run(Unknown Source) REPRODUCIBILITY : This bug can be reproduced rarely.

    JDK Bug System | 5 months ago | Webbug Group
    java.lang.NullPointerException
  2. 0

    Error With My Java Notepad

    Stack Overflow | 1 year ago | Anmol Brar
    java.lang.NullPointerException

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at java.awt.EventQueue.setCurrentEventAndMostRecentTime()
    2. Java RT
      JMenuBar.add
      1. java.awt.EventQueue.setCurrentEventAndMostRecentTime(Unknown Source)
      2. java.awt.Component.dispatchEventImpl(Unknown Source)
      3. java.awt.Container.dispatchEventImpl(Unknown Source)
      4. java.awt.Component.dispatchEvent(Unknown Source)
      5. java.awt.Container.addImpl(Unknown Source)
      6. java.awt.Container.add(Unknown Source)
      7. javax.swing.JMenuBar.add(Unknown Source)
      7 frames
    3. online.common
      commonRootApplet.run
      1. online.common.XFrame.addToMenuBar(XFrame.java:132)
      2. online.common.XFrame.addToMenuBar(XFrame.java:125)
      3. online.common.LPanel.addToMenuBar(LPanel.java:223)
      4. online.common.LPanel.addToMenuBar(LPanel.java:215)
      5. online.common.commonLobby.init(commonLobby.java:350)
      6. online.common.commonRootApplet.StartLframe(commonRootApplet.java:347)
      7. online.common.commonRootApplet.run(commonRootApplet.java:394)
      7 frames
    4. Java RT
      Thread.run
      1. java.lang.Thread.run(Unknown Source)
      1 frame