org.apache.axis.message.SOAPFaultBuilder.createFault（SOAPFaultBuilder.java:222）

我正在尝试使用Web服务。我的客户机作为托管在Tomcat上的JSP页面运行。尝试使用该服务时，我遇到以下错误：

HTTP Status 500 - Unexpected error: null

我知道这个问题在服务器端。我正在使用RPC样式的SOAP请求。我不熟悉JAVA和web服务，所以我需要一种方法来获取错误的变量。我如何解决这个问题

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请将JAF Java激活框架中的activation.jar添加到您的类路径中。

您能告诉我一些详细信息，说明这将如何解决我的问题吗。我是将其添加到客户端的类路径中，还是要求将其添加到服务器中？将activation.jar文件复制到J2EE服务器的axis/WEB-INF/lib目录我将其添加到eclipse项目WEB-INF/lib文件夹中，但没有成功将其添加到tomcat安装中。lib/ext文件夹并重新启动服务器。感谢您对此的耐心，但这并没有起作用。我将activation.jar文件放在C:\Tomcat\Tomcat7.0\lib文件夹中，重新启动了服务，没有任何更改。我也犯了同样的错误

type Exception report

message Unexpected error: null

description The server encountered an internal error that prevented it from fulfilling this request.

exception 

Unexpected error: null
    org.apache.axis.message.SOAPFaultBuilder.createFault(SOAPFaultBuilder.java:222)
    org.apache.axis.message.SOAPFaultBuilder.endElement(SOAPFaultBuilder.java:129)
    org.apache.axis.encoding.DeserializationContext.endElement(DeserializationContext.java:1087)
    com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(Unknown Source)
    com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)
    com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
    com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
    com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(Unknown Source)
    com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
    com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
    com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
    com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
    com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(Unknown Source)
    org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.java:227)
    org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)
    org.apache.axis.Message.getSOAPEnvelope(Message.java:435)
    org.apache.axis.handlers.soap.MustUnderstandChecker.invoke(MustUnderstandChecker.java:62)
    org.apache.axis.client.AxisClient.invoke(AxisClient.java:206)
    org.apache.axis.client.Call.invokeEngine(Call.java:2784)
    org.apache.axis.client.Call.invoke(Call.java:2767)
    org.apache.axis.client.Call.invoke(Call.java:2443)
    org.apache.axis.client.Call.invoke(Call.java:2366)
    org.apache.axis.client.Call.invoke(Call.java:1812)
    com.xxxx.xxxx.xxxx.xxxx.Ouxxxxxxx._xxxx.OutagexxxxxxxStub.newOutageRequest(OxxxxxxxxxxxngStub.java:1986)
    com.xxxx.xxxx.xxxx.xxxx.Outxxxxxxxrvice._xxxx.OutxxxxxxxxxxiceProxy.newOutageRequest(Oxxxxxxxxy.java:158)
    com.xxxx.xxxxxxxxxx.doPost(SubmxxxxID.java:178)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:728)