private void addMembershipChangeExtension( Message message, GroupView groupView, GroupMember member, PersonView memberView) { XmlBuilder builder = new XmlBuilder(); builder.openElement( MEMBERSHIP_CHANGE_ELEMENT_NAME, "xmlns", MEMBERSHIP_CHANGE_NAMESPACE, "membershipStatus", member.getStatus().toString(), "groupId", groupView.getIdentifyingGuid().toString(), "userId", memberView.getIdentifyingGuid().toString()); memberView.writeToXmlBuilderOld(builder); groupView.writeToXmlBuilderOld(builder); builder.closeElement(); message.getElement().add(elementFromXml(builder.toString())); }