public String toString(){
  if (maps == null)   return "";
  String s=super.toString() + "PolicyMappings [\n" + maps.toString()+ "]\n";
  return (s);
}

public String toString ( ) { if ( maps == null ) return "" ; String s = super . toString ( ) + "PolicyMappings [\n" + maps . toString ( ) + "]\n" ; return ( s ) ; }
returns a printable representation of the policy map .
