Class declaredType = org.eclipse.persistence.internal.helper.Helper.getClassFromClasseName(property.getActualType().getQualifiedName(), helper.getClassLoader());
JAXBElementRootConverter jaxbElementRootConverter = new JAXBElementRootConverter(declaredType);
mapping.setConverter(jaxbElementRootConverter);
if (property.getDomHandlerClassName() != null) {
jaxbElementRootConverter.setNestedConverter(new DomHandlerConverter(property.getDomHandlerClassName()));
}
if (property.isLax() || property.isReference()) {
mapping.setKeepAsElementPolicy(UnmarshalKeepAsElementPolicy.KEEP_UNKNOWN_AS_ELEMENT);
} else {