Btw, if I use DocumentBuilderFactory, this is the exception that I get: | 18:38:44,545 ERROR [[/pocgwt]] Exception while dispatching incoming RPC call | com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract java.lang.String[] com.test.poc.client.Poc.getAllCases()' th | rew an unexpected exception: java.lang.ClassCastException: org.apache.xerces.jaxp.DocumentBuilderFactoryImpl cannot be cast to javax.xml.parsers.Docum | entBuilderFactory | View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4246575#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...