code: public void writeComment(String comment) throws KNXMLException
  	{
  		try {
  			w.write("<!--");
  			w.write(comment);
  			w.write("-->");
  			w.newLine();
  		}
  		catch (final IOException e) {
  			throw new KNXMLException(e.getMessage());
  		}
  	}
docs: /* (non-Javadoc)
  @see tuwien.auto.calimero.xml.XMLWriter#writeComment(java.lang.String)