Hi , I have been encountering the following exception over the last couple of days . I am aware that the reason for this issue is because of using a different SOAPFactory class, while jboss expects org.jboss.ws.core.soap.SOAPEnvelopeImpl. I am trying to run oracle's bpel process on jboss , and the bpel engine needs it's own implementation of SOAPElement/SOAPFactory to process Webservice calls - when i try sending Jboss's SOAPElement , the bpel process fails without any error message Is it possible for me to by pass Jboss' MessageFactory/SOAPFactory classes by setting some classloader hierarchy java.lang.ClassCastException: oracle.j2ee.ws.saaj.soap.soap11.Element11 at org.jboss.ws.core.soap.SOAPEnvelopeImpl.(SOAPEnvelopeImpl.java:59) at org.jboss.ws.core.soap.EnvelopeBuilderDOM.build(EnvelopeBuilderDOM.java:116) at org.jboss.ws.core.soap.EnvelopeBuilderDOM.build(EnvelopeBuilderDOM.java:85) at org.jboss.ws.core.soap.MessageFactoryImpl.createMessage(MessageFactoryImpl.java:254) at org.jboss.ws.core.soap.MessageFactoryImpl.createMessage(MessageFactoryImpl.java:179) at org.jboss.ws.core.server.ServiceEndpoint.processRequest(ServiceEndpoint.java:197) at org.jboss.ws.core.server.ServiceEndpointManager.processRequest(ServiceEndpointManager.java:448) at org.jboss.ws.core.server.AbstractServiceEndpointServlet.doPost(AbstractServiceEndpointServlet.java:114) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.jboss.ws.core.server.AbstractServiceEndpointServlet.service(AbstractServiceEndpointServlet.java:75) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) Thanks, Swami View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4052210#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...