JRE under Test: 6u14 (promoted build-05)
Exception thrown by one applet e.g. security exception raised by unsigned applet, blocks the signed applet from loading inside the same page and hangs the browser. This is regression as compare to old PLug-in.

Steps to reproduce:
1) Create .java.policy with "ALL permissions" and try to load the following applets
http://sqeweb.sfbay.sun.com/deployment2/jitu/deployment_mustang_exec_ws/deployment/src/plugin/runtimeArgs/runtimeArgs/html/auto/MaxNewSizeTest/TestRuntimeArgs.html
Both applets will get loaded fine
2) Close the browser and remove the .java.policy file
Now try to load the same page again. This time if applets fails to load and browser/plug-in hangs then bug is reproduced

3) Try to load the same page using old PLug-in. Browser will not hang this time with unsigned applet raising security exception while signed applet will get loaded fine