weblogic8.1打包后,调用webservice时，提示[description] "javax/wsdl/OperationType"

调用时的代码片断如下String endpoint = "http://172.16.1.65/WebServiceForCRMLC/BuildingPrjIF.asmx?WSDL" ;
     String strFunc = "BuildingPrjInfoSyn";
     String tempuri = "http://tempuri.org/";
Service service = new Service();
org.apache.axis.client.Call call = (Call) service.createCall();
call.setTargetEndpointAddress(new java.net.URL(endpoint));
        call.setOperationName(new QName(tempuri, strFunc));
        call.setUseSOAPAction(true);
        call.setSOAPActionURI("http://tempuri.org/BuildingPrjInfoSyn");
        
        call.addParameter(new QName(tempuri, "xmlContent"), 
         org.apache.axis.encoding.XMLType.XSD_STRING,
         javax.xml.rpc.ParameterMode.IN);
       
        call.setReturnType(org.apache.axis.encoding.XMLType.XSD_STRING); 
        String xmlContent = getBuildingInfoXML(buildingMap,buildingId);
        logger.debug("传过去的xml数据是："+xmlContent);

        String xmlResultString =  call.invoke(new Object[]{xmlContent})+"";
        logger.debug("调用webservice 后的结果是："+xmlResultString);我的类路径下有必须的jar包axis.jar commons-discovery.jar saaj.jar wsdl4j-1.5.1.jar，
但是从错误上来看是这些jar包没有加载上，哪位都看出问题所在，万分感谢
[code] "SERVER.PROCESSING"
  [description] "javax/wsdl/OperationType"
  [details] "java.lang.NoClassDefFoundError: javax/wsdl/OperationType
at org.apache.axis.description.OperationDesc.<clinit>(OperationDesc.java:59)
at org.apache.axis.client.Call.addParameter(Call.java:968)
at org.apache.axis.client.Call.addParameter(Call.java:944)