3 Replies Latest reply on Mar 29, 2011 9:27 AM by Ales Justin

    Problems using JAXB inside Web Service

    Felipe Armoni Newbie

      Hi,

       

      I have developed a Web Service application with Axis 2 (1.5.4) that is hosted on JBoss 5.1.0.

       

      This application is supposed to generate a XML using JAXB.

       

      The problem is that when I try to create a JAXBElement using the ObjectFactory (code below) I get an exception.

       

      {code:java}SearchRequestType searchRequest;

      ObjectFactory factory;

      JAXBElement<SearchRequestType> jaxbSearchRequest;

       

      factory = new ObjectFactory();

       

      // Creates the SearchRequestType object

      searchRequest = generateSearchRequest(request);

       

      // Creates the JAXBElement<SearchRequestType> object.

      // This is the line that throws the exception.

      jaxbSearchRequest = factory.createSearchRequest(searchRequest);

       

      // Marshall the SearchRequestType into a String.

      searchRequestXml = encodeXML(jaxbSearchRequest);{code:java}

       

      This is the stack trace that I get from the exception:

       

      {code}2011-03-28 13:50:40,671 INFO  [STDOUT] (http-0.0.0.0-8080-1) [ERROR] loader constraint violation: when resolving method "javax.xml.bind.JAXBElement.<init>(Ljavax/xml/namespace/QName;Ljava/lang/Class;Ljava/lang/Class;Ljava/lang/Object;)V" the class loader (instance of org/jboss/classloader/spi/base/BaseClassLoader) of the current class, com/ObjectFactory, and the class loader (instance of <bootloader>) for resolved class, javax/xml/bind/JAXBElement, have different Class objects for the type javax/xml/namespace/QName used in the signature

      org.apache.axis2.AxisFault: loader constraint violation: when resolving method "javax.xml.bind.JAXBElement.<init>(Ljavax/xml/namespace/QName;Ljava/lang/Class;Ljava/lang/Class;Ljava/lang/Object;)V" the class loader (instance of org/jboss/classloader/spi/base/BaseClassLoader) of the current class, com/ObjectFactory, and the class loader (instance of <bootloader>) for resolved class, javax/xml/bind/JAXBElement, have different Class objects for the type javax/xml/namespace/QName used in the signature

          at org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:158)

          at org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic(AbstractInOutMessageReceiver.java:40)

          at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:114)

          at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:173)

          at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:167)

          at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:142)

          at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)

          at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

          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:235)

          at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

          at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)

          at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)

          at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)

          at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)

          at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)

          at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

          at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)

          at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

          at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)

          at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)

          at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)

          at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)

          at java.lang.Thread.run(Thread.java:662)

      Caused by: java.lang.reflect.InvocationTargetException

          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

          at java.lang.reflect.Method.invoke(Method.java:597)

          at org.apache.axis2.rpc.receivers.RPCUtil.invokeServiceClass(RPCUtil.java:194)

          at org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:102)

          ... 27 more

      Caused by: java.lang.LinkageError: loader constraint violation: when resolving method "javax.xml.bind.JAXBElement.<init>(Ljavax/xml/namespace/QName;Ljava/lang/Class;Ljava/lang/Class;Ljava/lang/Object;)V" the class loader (instance of org/jboss/classloader/spi/base/BaseClassLoader) of the current class, com/ObjectFactory, and the class loader (instance of <bootloader>) for resolved class, javax/xml/bind/JAXBElement, have different Class objects for the type javax/xml/namespace/QName used in the signature

          at com.ObjectFactory.createSearchRequest(ObjectFactory.java:634)

          at com.SearchXMLProcessor.encodeSearchRequestMessage(SearchXMLProcessor.java:48)

          ... 33 more

      {code}

       

      I have also tested the same code in a JBoss 4.2.2 and everything worked fine.

       

      How can I solve this error? Does this means that I will not be able to use JBoss 5.1?

       

      Thanks,

      Felipe