I have web service created. while accessing the service i am getting following error on server console.
Please help if any one knows what is the problem..

Thanks
s

11:21:25,990 WARN [jbossweb] WARNING: Error for /jboss-net/services/testHelloWorld java.lang.LinkageError: loader constraints violated when linking javax/xml/soap/SOAPElement class at org.apache.axis.message.EnvelopeBuilder.(EnvelopeBuilder.java:84) at org.apache.axis.encoding.DeserializationContextImpl.(DeserializationContextImpl.java:170) at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:540) at org.apache.axis.Message.getSOAPEnvelope(Message.java:377) at org.apache.axis.handlers.soap.SOAPService$SOAPRequestHandler.invoke(SOAPService.java:176) at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:71) at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:156) at org.apache.axis.SimpleChain.invoke(SimpleChain.java:126) at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java:437) at org.apache.axis.server.AxisServer.invoke(AxisServer.java:316) at org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:701) at javax.servlet.http.HttpServlet.service(HttpServlet.java:760) at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:335) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:360) at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:294) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558) at org.mortbay.http.HttpContext.handle(HttpContext.java:1714) at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:507) at org.mortbay.http.HttpContext.handle(HttpContext.java:1664) at org.mortbay.http.HttpServer.service(HttpServer.java:863) at org.jboss.jetty.Jetty.service(Jetty.java:460) at org.mortbay.http.HttpConnection.service(HttpConnection.java:775) at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939) at org.mortbay.http.HttpConnection.handle(HttpConnection.java:792) at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201) at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289) at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)