/MCGroup.java/1.3/Sat Apr  8 20:43:12 2006//THEAD
/MCGroupAdapter.java/1.3/Fri Mar 24 18:41:49 2006//THEAD
/MCGroupException.java/1.4/Wed May 14 23:04:24 2008//THEAD
/MCGroupFactory.java/1.2/Mon Jan 23 11:35:28 2006//THEAD
D/impl////
