axl:updateUserGroup hangs Tomcat on CUCM

Version 1
    This document was generated from CDN thread

    Created by: Tim Smith on 02-11-2012 10:02:43 PM
    When I send the following request to my CUCM version - it pegs the CPU and hangs the Tomcat service everytime without fail.
    I have to reset Tomcat to get it back to normal.
    Request below:
    <?xml version="1.0" encoding="UTF-8"?><soap:Envelope xmlns:xsi="" xmlns:soapenc="" xmlns:xsd="" soap:encodingStyle="" xmlns:soap="" xmlns:axl=""><soap:Body><axl:updateUserGroup><name xsi:type="xsd:string">TestGroup</name><addMembers><member><item><userid xsi:type="xsd:string">jbloggs</userid></item></member></addMembers></axl:updateUserGroup></soap:Body></soap:Envelope>