Check for a behavior change on ThreadGroup setMaxPriority method

This rule flags the method setMaxPriority on the class java.lang.ThreadGroup as its behavior has changed.

Per the API documentation, "If the pri argument is less than Thread.MIN_PRIORITY or greater than Thread.MAX_PRIORITY , the maximum priority of the group remains unchanged." Prior to JDK 7, the method did not behave as specified. The change in JDK 7 is to enforce this stated behavior.

For more information, see:

• Java SE 7 and JDK 7 Compatibility
• (thread) ThreadGroup.setMaxPriority changes priority if param is out of range
• ThreadGroup Java Documentation