AFAIK Axis doesn't support this but if you write in document/literal or wrapped/literal mode, and separate out your schema definition into a separate XSD file, then you can use Castor to verify schemas. Haven't tried it though.
See http://www-106.ibm.com/developerworks/webservices/library/ws-castor/
Thanks Bill; as soon as I have a working solution I will post it.
Carsten -- Carsten Ziegeler - Open Source Group, S&N AG http://www.s-und-n.de http://www.osoco.org/weblogs/rael/