###@###.### 2001-08-23
Submitted on behalf of IBM. While they agree that the behaviour 
described in Bug #4197876 is not a bug, they would like it 
documented and have suggested that the following be added to the 
J2SE API documentation for the Thread class:

When a thread is created it is automatically added to a thread group.  
This allows threads to be run at a later stage without the need to 
explicitly store a reference to them.  Due to this a thread will not 
be garbage collected until its run() method has been executed."

The owner of this API, Josh Bloch, agrees with this approach.