Check to ensure we aren't reading some random block of memory, throw an IllegalArgumentException if setDataSource fails
Check to ensure we aren't reading some random block of memory, throw an IllegalArgumentException if setDataSource fails

git-svn-id: 617ad4860dbc5b8a793a5b07e81e5b5684aade50@1407 b8d320ad-ce4d-463a-8333-51e6c77ad906

minstrelsy/servestream,minstrelsy/servestream,minstrelsy/servestream,minstrelsy/servestream