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NullPointerExceptio Occurred During Dispatch Event

 
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Hi,
I am using JDk1.1.7B. It is running fine on almost all browsers and different OS system.But sometimes on Opera Browser or Netscape 4.08, it is giving this error when I click the button:
java.lang.NullPointerException
at k_main.action
at java/awt/Component.handleEvent(Component.java)
at java/awt/Component.postEvent(Component.java)
at java/awt/Component.dispatchEventImpl(Component.java)
at java/awt/Component.dispatchEvent(Component.java)
at java/awt/EventDispatchThread.run(EventDispatchThread.java)
Please let me know what should I do?
Thanks
Angela
 
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Why don't you show us the code for the button that is causing this error. Seems to have both 1.0 type event handling mixed with 1.1 type event handling and the two types don't mix.
 
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