Please review this change. An exception from JConsole plug-in should not affect other tabs. http://monaco.us.oracle.com/detail.jsf?cr=6696970
Added a plug-in proxy that handles RE. If debug mode is enabled exceptions are written to System.err. Tested by adding faked exceptions to the JTop plug-in.
Code is targeted for jdk7. Webrev: http://cr.openjdk.java.net/~egahlin/6696970 A sponsor is needed. Thanks Erik
