if (cmisVersion != CmisVersion.CMIS_1_0 && source.getTypeMutability() != null) {
TypeMutability tm = source.getTypeMutability();
writer.writeStartElement(PREFIX_CMIS, TAG_TYPE_TYPE_MUTABILITY, NAMESPACE_CMIS);
XMLUtils.write(writer, PREFIX_CMIS, NAMESPACE_CMIS, TAG_TYPE_TYPE_MUTABILITY_CREATE, tm.canCreate());
XMLUtils.write(writer, PREFIX_CMIS, NAMESPACE_CMIS, TAG_TYPE_TYPE_MUTABILITY_UPDATE, tm.canUpdate());
XMLUtils.write(writer, PREFIX_CMIS, NAMESPACE_CMIS, TAG_TYPE_TYPE_MUTABILITY_DELETE, tm.canDelete());
writeExtensions(writer, tm);
writer.writeEndElement();