PIT: NullPointerException when tried to launch sunreserve applet

Tested OS : Solaris, Linux
Tested Build : mustang PIT b86

Steps to reproduce :

1. Go to http://sunres3.central.sun.com
2. Login with your SunID and password
3. Click "My Buildings and Spaces" under "My Preferences"
4. Click "View Floor Plan" under "Reservable Drop-in Preferences"
5. Select the location and building, e.g SCA 12/1
6. Click "Select"
The applet floor plan should come up
Instead applet failed and load and NullPointerException thrown in the console

java.lang.NullPointerException
       at sun.applet.AppletPanel.findAppletJDKLevel(Unknown Source)
       at sun.applet.AppletPanel.createApplet(Unknown Source)
       at sun.plugin.AppletViewer.createApplet(Unknown Source)
       at sun.applet.AppletPanel.runLoader(Unknown Source)
       at sun.applet.AppletPanel.run(Unknown Source)
       at java.lang.Thread.run(Unknown Source)

Note : Able to launch the applet on windows