Runtime error in Applet only appears when running through IDE applet viewer

Java 5.0
Netbeans 4.1
Linux (Suse 9.3)
I only started getting this error when I set the data loading and initialization classes into a separate thread. (the data loading and init is currently just using dummy test data within the class, nothing is loaded from external files as of yet)
Exception in thread "J3D-MasterControl" java.lang.NullPointerException
        at javax.media.j3d.SoundScheduler.activate(SoundScheduler.java:714)
        at javax.media.j3d.MasterControl.viewActivate(MasterControl.java:2539)
        at javax.media.j3d.MasterControl.handlePendingRequest(MasterControl.java:3032)
        at javax.media.j3d.MasterControl.doWork(MasterControl.java:2956)
        at javax.media.j3d.MasterControlThread.run(MasterControlThread.java:28)This error only comes up about 50% of the time, and only when I run it within the IDE applet viewer. I've never gotten this error when I run it from a web browser (tested with IE, Firefox and Opera).
Is this an error I should be worried about, since it only comes up within the IDE?

Chana_R wrote:
Thanks for the reply. I am new to this topic area (though pretty good a programming in general...), so forgive me the query below is offbase.
The applet is unsigned. For what it is worth, the applet code and the database are stored on the same machine. However, I can see where a client running the applet is a remote user and so the system may view this as a different source of code (IP/DNS).User has nothing to do with it.
>
I am currently to the point I can run the applet on my own server's browser, but cannot access the applet via a remote browser. I get an java.lang.NullPointerException
     at JdbcTest.init(JdbcTest.java:40)
     at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Would this be typical of the problem you describe?
No. You will get an exception for the problem I discussed. The problem you have suggests either something else is wrong or you are eating an exception and then attempting to continue.
And secondly, what is a reasonably safe (and yet free!) method to deal with this? Is there a way to handle through java.policy or should I sign the applet? I've never worked with signed applets...but I can certainly start reading up on the topic...Signing the applet is easier in terms of distribution. Policy change is quicker if you are just messing around or if you have a very limited distribution target.

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