private static void assertFieldNS(String fieldNS) throws XMPException {
  if (fieldNS == null || fieldNS.length() == 0) {
    throw new XMPException("Empty field namespace URI",XMPError.BADSCHEMA);
  }
}

private static void assertFieldNS ( String fieldNS ) throws XMPException { if ( fieldNS == null || fieldNS . length ( ) == 0 ) { throw new XMPException ( "Empty field namespace URI" , XMPError . BADSCHEMA ) ; } }
parameterasserts that a struct field namespace is set .
