Thanks, btw I tried to remove hibernate-validator.jar from common/lib to see my app correctly deployed...at least it starts but there's one more issue. My Jboss distribution is bundled inside Liferay CMS; I can't touch common/lib anymore and my web app is using Struts 1.3. Integrating into a liferay portlet Struts is no more recognized obtaining a 500 error and this stack trace:
[code]
javax.servlet.ServletException: Cannot find catalog 'struts'
org.apache.struts.chain.ComposableRequestProcessor.init(ComposableRequestProcessor.java:161)
org.apache.struts.action.ActionServlet.getRequestProcessor(ActionServlet.java:620)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1910)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
[/code]
I suspect for this error I should check liferay community even if I'm using the classloading descriptor above to give precedence to my web-inf/lib.
It's a real nightmare!
Thanks for your help
Simon