WebService客户端

WS客户端请求服务器时出现以下异常，不知道问题出在哪？
java.lang.ClassCastException: org.apache.axis.AxisFault cannot be cast to java.lang.String
at com.mjoys.mdsp.com.OrderCom$$EnhancedByS2AOP$$1062b18.handle(OrderCom$$EnhancedByS2AOP$$1062b18.java)
at com.mjoys.mdsp.impl.MDSP01Impl.doService(MDSP01Impl.java:36)
at com.mjoys.mdsp.dispatcher.manager.ServiceManager.doService(ServiceManager.java:50)
at com.mjoys.mdsp.dispatcher.RequestDispatcher.dispatcher(RequestDispatcher.java:29)
at com.mjoys.mdsp.dispatcher.servlet.DispatcherServlet.accessInterface(DispatcherServlet.java:132)
at com.mjoys.mdsp.dispatcher.servlet.DispatcherServlet.doPost(DispatcherServlet.java:105)
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 org.seasar.struts.filter.RoutingFilter.doFilter(RoutingFilter.java:144)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.seasar.framework.container.hotdeploy.HotdeployFilter.doFilter(HotdeployFilter.java:71)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.seasar.framework.container.filter.S2ContainerFilter.doFilter(S2ContainerFilter.java:79)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.seasar.extension.filter.EncodingFilter.doFilter(EncodingFilter.java:69)
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:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)异常WebServiceJava