I added to file jboss-web.xml the following:
<class-loading java2ClassLoadingCompliance="false">
<loader-repository>
dot.com:loader=xwiki.war
<loader-repository-config>java2ParentDelegation=false</loader-repository-config>
</loader-repository>
</class-loading>
as was described on http://www.jboss.org/wiki/Wiki.jsp?page=ClassLoadingConfiguration
but it doesn't work... When I try to receive access to net.sf.hibernate.connection.ConnectionProviderFactory class then I receive class from server//lib/hibernate2.jar not from my WEB-INF/lib/hibernate2.jar
What wrong?