private <T> List<T> union(List<T> list1, List<T> list2) {
    Set<T> set = new HashSet<T>();

    set.addAll(list1);
    set.addAll(list2);

    return new LinkedList<T>(set);
  }
@param path
@return URI corresponding to the path.
ql/src/test/org/apache/hadoop/hive/ql/session/TestAddResource.java