Null pointer exception for JList-derived class

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#9672

From: janene_r_mccrillis
Date: Mon, 14 Feb 2000 00:00

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I have a class that I defined, call it MyList, that is based on JList.
It currently has nothing new beyond what JList supplies - I created it
using the JBuilder3 Class Wizard and haven't changed the results. When I
put that component into my GUI (in a Scrollpane) using the Designer and
run, I get a null pointer exception on the line which attempts to add
the MyList variable to the viewport of the Scrollpane.  I've checked it
and the MyList is created properly and is not null, and the scrollpane
exists.  Is there a step I've missed?

Thanks for any help.

Janene McCrillis
Lockheed-Martin Space Systems


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Subject: Null pointer exception for JList-derived class
Date: 2000/02/14
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