Copying a StAX utility class on to the xml-schema-1.1-dev branch from the stax-dev branch.
Copying a StAX utility class on to the xml-schema-1.1-dev branch from the stax-dev branch.

git-svn-id: 39602be06c88ea89c23a8a9fd3d1314146990de6@683679 13f79535-47bb-0310-9956-ffa450edef68

RackerWilliams/xercesj,RackerWilliams/xercesj,RackerWilliams/xercesj