if (isPresent(DOM4J_CLASS_NAME)) {
methodReturnValueHandlers.add(new Dom4jPayloadMethodProcessor());
}
if (isPresent(JAXB2_CLASS_NAME)) {
methodReturnValueHandlers.add(new XmlRootElementPayloadMethodProcessor());
methodReturnValueHandlers.add(new JaxbElementPayloadMethodProcessor());
}
if (isPresent(JDOM_CLASS_NAME)) {
methodReturnValueHandlers.add(new JDomPayloadMethodProcessor());
}
if (isPresent(XOM_CLASS_NAME)) {