I also encountered this problem the other week. Due to time constraints I couldn't look into it properly but tracked it down to the service response. We only require ws-security on the inbound from the service so I edited the modules.xml in rampart to remove the outbound security and this circumvents the problem.
It may help short term and I'll be watching this thread to find out what the issue is. R ----- Original Message ---- From: Darshan Jawalebhoi <[EMAIL PROTECTED]> To: [email protected] Sent: Thursday, 15 May, 2008 9:02:14 AM Subject: XMLStreamException "the prefix ==> Already exists for namespace" when WS-Security Rampart is engaged for Axis 2 web-services Hi, I tried to incorporate the WS-Security (using Rampart 1.3 module) feature to my existing set of web-services. I am using AXIS 2 1.3. The java classes are generated using WSDL2JAVA. I get the following error in server logs while serialization of the certain responses (all those which contain many "X" nodes under the "X-List" node) node since the time WS-Security has been enabled: **************************************************************************************************************************** 12:22:22,344 ERROR [OMSourcedElementImpl] Could not get parser from data source for element {http://services.mydomain.com/ws/schema/classificationservice}getInstructorListResponse javax.xml.stream.XMLStreamException: the prefix ==> Already exists for namespace ==> http://services.mydomain.com/ws/schema/common/credentials at org.apache.axis2.databinding.utils.writer.MTOMAwareOMBuilder.getOMNamespace(MTOMAwareOMBuilder.java:72) at org.apache.axis2.databinding.utils.writer.MTOMAwareOMBuilder.writeStartElement(MTOMAwareOMBuilder.java:92) at com.mydomain.services.ws.schema.common.credentials.Credentials.serialize(Credentials.java:177) at com.mydomain.services.ws.schema.common.credentials.CredentialsList.serialize(CredentialsList.java:170) at com.mydomain.services.ws.schema.common.instructor.Instructor.serialize(Instructor.java:626) at com.mydomain.services.ws.schema.common.instructor.Instructors.serialize(Instructors.java:169) at com.mydomain.services.ws.schema.classificationservice.GetInstructorListResponse.serialize (GetInstructorListResponse.java:226) at com.mydomain.services.ws.schema.classificationservice.GetInstructorListResponse$1.serialize (GetInstructorListResponse.java:128) at org.apache.axis2.databinding.ADBDataSource.getReader(ADBDataSource.java:96) at org.apache.axiom.om.impl.llom.OMSourcedElementImpl.getDirectReader(OMSourcedElementImpl.java:129) at org.apache.axiom.om.impl.llom.OMSourcedElementImpl.forceExpand(OMSourcedElementImpl.java:152) at org.apache.axiom.om.impl.llom.OMSourcedElementImpl.getFirstOMChild(OMSourcedElementImpl.java:755) at org.apache.axiom.om.impl.llom.OMNavigator._getFirstChild(OMNavigator.java:141) at org.apache.axiom.om.impl.llom.OMNavigator.updateNextNode(OMNavigator.java:113) at org.apache.axiom.om.impl.llom.OMNavigator.next(OMNavigator.java:96) at org.apache.axiom.om.impl.llom.OMStAXWrapper.updateNextNode(OMStAXWrapper.java:1007) at org.apache.axiom.om.impl.llom.OMStAXWrapper.updateLastNode(OMStAXWrapper.java:998) at org.apache.axiom.om.impl.llom.OMStAXWrapper.next(OMStAXWrapper.java:923) at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:153) at org.apache.axiom.om.impl.dom.NodeImpl.build(NodeImpl.java:447) at org.apache.axiom.om.impl.dom.DocumentImpl.build(DocumentImpl.java:479) at org.apache.rampart.util.Axis2Util.getDocumentFromSOAPEnvelope(Axis2Util.java:130) at org.apache.rampart.RampartMessageData.<init>(RampartMessageData.java:150) at org.apache.rampart.MessageBuilder.build(MessageBuilder.java:58) at org.apache.rampart.handler.RampartSender.invoke(RampartSender.java:64) at org.apache.axis2.engine.Phase.invoke(Phase.java:292) at org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:212) at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:377) at org.apache.axis2.receivers.AbstractInOutSyncMessageReceiver.invokeBusinessLogic (AbstractInOutSyncMessageReceiver.java:45) at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:96) at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:145) at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:275) at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:120) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) 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 com.mydomain.util.log.performance.filter.RequestIdentifierFilter.doFilter(RequestIdentifierFilter.java:60) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal (OpenSessionInViewFilter.java:198) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 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) **************************************************************************************************************************** Consequently, the error received on in the web-service response is: **************************************************************************************************************************** org.apache.axis2.AxisFault: Error in extracting message properties at org.apache.rampart.handler.RampartSender.invoke(RampartSender.java:70) at org.apache.axis2.engine.Phase.invoke(Phase.java:292) at org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:212) at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:377) at org.apache.axis2.receivers.AbstractInOutSyncMessageReceiver.invokeBusinessLogic (AbstractInOutSyncMessageReceiver.java:45) at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:96) at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:145) at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:275) at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:120) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) 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 com.mydomain.util.log.performance.filter.RequestIdentifierFilter.doFilter(RequestIdentifierFilter.java:60) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal (OpenSessionInViewFilter.java:198) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 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) Caused by: org.apache.rampart.RampartException: Error in extracting message properties at org.apache.rampart.RampartMessageData.<init>(RampartMessageData.java:290) at org.apache.rampart.MessageBuilder.build(MessageBuilder.java:58) at org.apache.rampart.handler.RampartSender.invoke(RampartSender.java:64) ... 35 more Caused by: org.apache.ws.security.WSSecurityException: Error in converting SOAP Envelope to Document; nested exception is: org.apache.axiom.om.OMException: javax.xml.stream.XMLStreamException at org.apache.rampart.util.Axis2Util.getDocumentFromSOAPEnvelope(Axis2Util.java:157) at org.apache.rampart.RampartMessageData.<init>(RampartMessageData.java:150) ... 37 more Caused by: org.apache.axiom.om.OMException: javax.xml.stream.XMLStreamException at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:239) at org.apache.axiom.om.impl.dom.NodeImpl.build(NodeImpl.java:447) at org.apache.axiom.om.impl.dom.DocumentImpl.build(DocumentImpl.java:479) at org.apache.rampart.util.Axis2Util.getDocumentFromSOAPEnvelope(Axis2Util.java:130) ... 38 more Caused by: javax.xml.stream.XMLStreamException at org.apache.axiom.om.impl.llom.OMStAXWrapper.updateLastNode(OMStAXWrapper.java:1000) at org.apache.axiom.om.impl.llom.OMStAXWrapper.next(OMStAXWrapper.java:923) at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:153) **************************************************************************************************************************** I debugged the code and observed that, in the serialize method of the XML node POJO (generated by WSDL2JAVA), the "MTOMAwareXMLStreamWriter xmlWriter" parameter gets an instance of MTOMAwareOMBuilder if WS-Security is enabled. Whereas, without WS-Security it gets an instance of org.apache.axis2.databinding.utils.writer.MTOMAwareXMLSerializer which uses MTOMXMLStreamWriter which in turn uses com.ctc.wstx.sw.SimpleNsStreamWriter to serialize the response. I also tried using AXIS 1.4 without any success. Any idea how can this problem can be solved? Is there a way to let Rampart know which serializer should be used? Am I missing any configuration details of Rampart? Darshan Jawalebhoi http://curiousdeveloper.blogspot.com DISCLAIMER ========== This e-mail may contain privileged and confidential information which is the property of Persistent Systems Ltd. It is intended only for the use of the individual or entity to which it is addressed. If you are not the intended recipient, you are not authorized to read, retain, copy, print, distribute or use this message. If you have received this communication in error, please notify the sender and delete all copies of this message. 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