code: public void processingInstruction (String target, String data)
      throws SAXException
      {
      if (contentHandler != null) {
          contentHandler.processingInstruction(target, data);
      }
      }
docs: Adapter implementation method; do not call.
  Adapt a SAX1 processing instruction event.
  
  @param target The processing instruction target.
  @param data The remainder of the processing instruction
  @exception SAXException The client may raise a
  processing exception.
  @see org.xml.sax.DocumentHandler#processingInstruction