if (descriptor.getValidUntil() != null) { log.debug("Writting validUntil attribute to AffiliationDescriptor DOM element"); String validUntilStr = SAMLConfigurationSupport.getSAMLDateFormatter().print(descriptor.getValidUntil()); domElement.setAttributeNS(null, TimeBoundSAMLObject.VALID_UNTIL_ATTRIB_NAME, validUntilStr);