java.lang.NullPointerException

Oracle Community | 843797 | 2 decades ago
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    javax.comm - No serial ports found!

    Oracle Community | 2 decades ago | 843797
    java.lang.NullPointerException

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at ChatApp.init()
    2. Unknown
      ChatApp.<init>
      1. ChatApp.init(ChatApp.java:71)
      2. ChatApp.<init>(ChatApp.java:42)
      3. ChatApp.init(ChatApp.java:81)
      4. ChatApp.<init>(ChatApp.java:42)
      4 frames
    3. Java RT
      AppletPanel.createApplet
      1. sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
      2. sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
      3. sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
      4. java.lang.reflect.Constructor.newInstance(Unknown Source)
      5. java.lang.Class.newInstance0(Unknown Source)
      6. java.lang.Class.newInstance(Unknown Source)
      7. sun.applet.AppletPanel.createApplet(Unknown Source)
      7 frames
    4. sun.plugin
      AppletViewer.createApplet
      1. sun.plugin.AppletViewer.createApplet(Unknown Source)
      1 frame
    5. Java RT
      Thread.run
      1. sun.applet.AppletPanel.runLoader(Unknown Source)
      2. sun.applet.AppletPanel.run(Unknown Source)
      3. java.lang.Thread.run(Unknown Source)
      3 frames