public static Collection<String> getTrimmedStringCollection(String str){
    return new ArrayList<String>(
      Arrays.asList(getTrimmedStrings(str)));
  }
Splits a comma separated value <code>String</code>, trimming leading and trailing whitespace on each value.
@param str a comma separated <code>String</code> with values
@return a <code>Collection</code> of <code>String</code> values
common/src/java/org/apache/hive/common/util/HiveStringUtils.java