项目用was部署的利用的axis2框架在调用接口的时候报错如下（参数是一个类，如果参数为String类型没事）
I org.apache.axis2.builder.BuilderUtil getSOAPBuilder OMException in getSOAPBuilder
org.apache.axiom.om.OMException: javax.xml.stream.XMLStreamException: 在文档的序言中发现无效 XML 字符（Unicode：0xffffffff）。
at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:255)
at org.apache.axiom.soap.impl.builder.StAXSOAPModelBuilder.getSOAPEnvelope(StAXSOAPModelBuilder.java:156)
at org.apache.axiom.soap.impl.builder.StAXSOAPModelBuilder.<init>(StAXSOAPModelBuilder.java:105)
at org.apache.axis2.builder.BuilderUtil.getSOAPBuilder(BuilderUtil.java:683)
at org.apache.axis2.transport.TransportUtils.createDocumentElement(TransportUtils.java:209)
at org.apache.axis2.transport.TransportUtils.createSOAPMessage(TransportUtils.java:139)
at org.apache.axis2.transport.TransportUtils.createSOAPMessage(TransportUtils.java:102)
at org.apache.axis2.transport.TransportUtils.createSOAPMessage(TransportUtils.java:66)
at org.apache.axis2.description.OutInAxisOperationClient.handleResponse(OutInAxisOperation.java:353)
at org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:416)
at org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:228)
at org.apache.axis2.client.OperationClient.execute(OperationClient.java:163)
at org.apache.axis2.client.ServiceClient.sendReceive(ServiceClient.java:549)
at org.apache.axis2.client.ServiceClient.sendReceive(ServiceClient.java:529)
at org.apache.axis2.rpc.client.RPCServiceClient.invokeBlocking(RPCServiceClient.java:102)
at com.icss.eps.webservice.netPClient.KeynodeClient.keyNode(KeynodeClient.java:127)
at com.icss.eps.controller.TBasProjectlistController.keyNode(TBasProjectlistController.java:1956)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
at java.lang.reflect.Method.invoke(Method.java:611)
at com.chinasofti.ro.bizframework.core.utils.ActionInvokerUtil.invoke(Unknown Source)
at com.chinasofti.ro.bizframework.core.mvc.ActionInvoker.invoke(Unknown Source)
at com.chinasofti.ro.bizframework.core.mvc.ActionFilter.doFilter(Unknown Source)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:188)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:116)
at com.chinasofti.ro.bizframework.core.web.filter.LocaleFilter.doFilterInternal(Unknown Source)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:188)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:116)
at com.icss.eps.filter.SessionFilter.doFilterInternal(SessionFilter.java:54)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:188)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:116)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:188)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:116)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:77)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:908)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:997)
at com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor.invokeFilters(DefaultExtensionProcessor.java:1062)
at com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor.handleRequest(DefaultExtensionProcessor.java:982)
at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3935)
at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:276)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:931)
at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1583)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:186)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:452)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:511)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:305)
at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:83)
at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1604)
Caused by: javax.xml.stream.XMLStreamException: 在文档的序言中发现无效 XML 字符（Unicode：0xffffffff）。
at com.ibm.xml.xlxp2.api.stax.msg.StAXMessageProvider.throwWrappedXMLStreamException(StAXMessageProvider.java:76)
at com.ibm.xml.xlxp2.api.stax.XMLStreamReaderImpl.produceFatalErrorEvent(XMLStreamReaderImpl.java:2013)
at com.ibm.xml.xlxp2.api.jaxb.JAXBXMLStreamReader.produceFatalErrorEvent(JAXBXMLStreamReader.java:316)
at com.ibm.xml.xlxp2.scan.DocumentScanner.reportFatalError(DocumentScanner.java:4821)
at com.ibm.xml.xlxp2.scan.DocumentScanner.reportFatalError(DocumentScanner.java:1205)
at com.ibm.xml.xlxp2.scan.DocumentScanner.scanProlog(DocumentScanner.java:1770)
at com.ibm.xml.xlxp2.scan.DocumentScanner.nextEvent(DocumentScanner.java:1316)
at com.ibm.xml.xlxp2.api.stax.XMLStreamReaderImpl.next(XMLStreamReaderImpl.java:586)
at com.ibm.xml.xlxp2.api.stax.XMLInputFactoryImpl$XMLStreamReaderProxyImpl.next(XMLInputFactoryImpl.java:183)
at com.ibm.xml.xlxp2.api.wssec.WSSXMLInputFactory$WSSStreamReaderProxy.next(WSSXMLInputFactory.java:55)
at org.apache.axiom.om.impl.builder.StAXBuilder.parserNext(StAXBuilder.java:553)
at org.apache.axiom.om.impl.builder.StAXOMBuilder.nextToken(StAXOMBuilder.java:634)
at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.java:175)
... 59 more
各位大佬有知道怎么回事的不