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elements in the list. I do this because null elements are incompatible with the implementation details of these utility methods. There were only two related pieces of code in all our projects that used the behavior of indexOf(null) and those now use the new indexOfNull() method. git-svn-id: https://samskivert.googlecode.com/svn/trunk@1522 6335cc39-0255-0410-8fd6-9bcaacd3b74c