 /**
  *  The RPCStringUtil class is a subset of StringUtil, removing methods
  *  that create dependency issues when RPC messages are in a bootstrap loader.
+ *  
+ *  @langversion 3.0
+ *  @playerversion Flash 9
+ *  @playerversion AIR 1.1
+ *  @productversion Flex 3
  */
 public class RPCStringUtil
 {

     *
     *  @return Updated String where whitespace was removed from the 
     *  beginning and end. 
     */
    public static function trim(str:String):String
    {

     *
     *  @return <code>true</code> if the specified string is
     *  a single space, tab, carriage return, newline, or formfeed character.
     *  
     *  @langversion 3.0
     *  @playerversion Flash 9
     *  @playerversion AIR 1.1
     *  @productversion Flex 3
     */
    public static function isWhitespace(character:String):Boolean
    {
