Minor performance improvement. Iterate over the entries in the map instead  of the keys. This avoids a redundant table lookup for each value.
Minor performance improvement. Iterate over the entries in the map instead 
of the keys. This avoids a redundant table lookup for each value.

git-svn-id: 39602be06c88ea89c23a8a9fd3d1314146990de6@704759 13f79535-47bb-0310-9956-ffa450edef68

RackerWilliams/xercesj,RackerWilliams/xercesj,RackerWilliams/xercesj