OS - all
Browsers - all
release - j2sdk1.5.0-beta1

Steps to reproduce -

1) Install j2sdk1.5.0 on sny OS.
2) Go to the Plugin demos location at
{jdk_installed_dir}/demo/plugin/applets
3) Invoke the MoleculeViewer applet - example 3
4) There are four applets that need to be loaded.

However, most of the times, only one or two applet load and the following exception is thrown on the console. This problem is not reproducible at all times. Roughly, it can reproduced 7/10 times.

Exception message
----------------------------------------------------------------------------
java.lang.NullPointerException
        at XYZApp.newBackBuffer(XYZApp.java:296)
        at XYZApp.init(XYZApp.java:312)
        at sun.applet.AppletPanel.run(AppletPanel.java:354)
        at java.lang.Thread.run(Thread.java:566)
java.lang.NullPointerException
        at XYZApp.newBackBuffer(XYZApp.java:296)
        at XYZApp.init(XYZApp.java:312)
        at sun.applet.AppletPanel.run(AppletPanel.java:354)
        at java.lang.Thread.run(Thread.java:566)
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