Prevent NPE when operating on a null list. A null list should be treated as an empty list.
Prevent NPE when operating on a null list. A null list should be treated as an
empty list.


git-svn-id: 64ebf368729f38804935acb7146e017e0f909c6b@1785 6335cc39-0255-0410-8fd6-9bcaacd3b74c

samskivert/samskivert,samskivert/samskivert