Different issues are noticed on different browser when run with new Plug-in while running the multiple applets getting loaded from the same codebase and trying to share the sysem event queue. Everything works fine if each of applet is loaded from different codebase since in that there is no sharing of Appcontext/EventQueue.
On IE first time loading of applets is fine but on page reload(s), only one applet is getting loaded fine while rest of the applets fail to load by throwing exception mentioned below . With FF3 sometimes VM is getting shutdown and applets are failing to load at all.
Note: Issues are not reproducible with old PLug-in.
Exception in thread "AWT-EventQueue-27" java.security.AccessControlException: access denied (java.lang.RuntimePermission getenv.JPI_PLUGIN2_FORCE_DRAGGABLE)
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.System.getenv(Unknown Source)
at sun.plugin2.util.SystemUtil.getenv(Unknown Source)
at sun.plugin2.main.client.PluginMain$StartAppletRunner.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at MyEventQueue.dispatchEvent(EventQueueKeyStrokeTest.java:73)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

Steps to reproduce:
1) Install JRE 6u14 or 6u15
2) try to load the following applet
http://sqeweb.sfbay.sun.com/deployment2/jitu/plug-bug/security/eventqueue/ToolKitEventQueueACTest.html
Do a page refresh , if above mentioned exception is thrwon then bug is reproduced