docs: public static boolean isStaxPresent() {
  		Boolean retVal = ourStaxPresent;
  		if (retVal == null) {
  			try {
  				Class.forName("javax.xml.stream.events.XMLEvent");
  				Class<?> xmlUtilClazz = Class.forName("ca.uhn.fhir.util.XmlUtil");
  				xmlUtilClazz.getMethod("createXmlReader", Reader.class).invoke(xmlUtilClazz, new StringReader(""));
  				ourStaxPresent = Boolean.TRUE;
  				retVal = Boolean.TRUE;
  			} catch (Throwable t) {
  				ourLog.info("StAX not detected on classpath, XML processing will be disabled");
  				ourStaxPresent = Boolean.FALSE;
  				retVal = Boolean.FALSE;
  			}
  		}
  		return retVal;
  	}