Check for a behavior change for AWT Exception Handler

This rule flags the String sun.awt.exception.handler .

The System property sun.awt.exception.handler was previously used to override the default exception handling behavior of the event dispatch thread. According to Java SE 7 and JDK 7 Compatibility documentation in Java 7, the user should use the new standard exception handling mechanism as described in the Thread.UncaughtExceptionHandler class.

For additional information, see the Java 7 APIs:

• Thread.UncaughtExceptionHandler Java documentation