Hello, Executing my web service under jboss4.2.0-GA on Linux, I get: (meaning jboss-4.2.0.GA is just unzipped, all required war etc copied under appropriate directories) but when using jboss-4.2.0.GA + upgrading it from jbossws1.2.0.SP1 it is working. java.lang.NoSuchMethodError: javax.xml.soap.SOAPElement.getElementQName()Ljavax/xml/namespace/QName; at org.jboss.ws.core.soap.SOAPElementImpl.getChildElements(SOAPElementImpl.java:504) at org.jboss.ws.core.soap.SOAPBodyImpl.faultIterator(SOAPBodyImpl.java:181) at org.jboss.ws.core.soap.SOAPBodyImpl.getFault(SOAPBodyImpl.java:168) at org.jboss.ws.core.soap.SOAPMessageImpl.isFaultMessage(SOAPMessageImpl.java:326) at org.jboss.ws.core.server.ServiceEndpoint.processRequest(ServiceEndpoint.java:244) 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:710) at org.jboss.ws.core.server.AbstractServiceEndpointServlet.service(AbstractServiceEndpointServlet.java:75) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:595) Catherine Pires da Silva View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4100762#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...