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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 12758] New: - Deserialization of complex classes throws SAXException
Date Wed, 18 Sep 2002 08:07:26 GMT
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=12758

Deserialization of complex classes throws SAXException

           Summary: Deserialization of complex classes throws SAXException
           Product: Axis
           Version: current (nightly)
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: Serialization/Deserialization
        AssignedTo: axis-dev@xml.apache.org
        ReportedBy: nbrennan@touchcorp.com


I'm using what I believe to be the latest version of AXIS on Linux (I 
downloaded "xml-axis-rc1-bin.zip" yesterday - 16 Sept 02) and trying to talk to 
a Borland SOAP server with 5 different services.  

I used WSDL2Java to generate all the classes I need from the following service: 
http://tims.moveyourselftrailer.com.au:8000/scripts/SackTruck.dll/wsdl/ISackTruc
k

I used this snippet of code to try and access the simplest of the ports, just 
as worked previously for another service on the same server:

	ISackTruckservice locator = new ISackTruckserviceLocator();
	ISackTruck client = locator.getISackTruckPort();
	Object fees = client.getSackTruckFees();

And got:

org.xml.sax.SAXException: operation description is missing parameter 
description!
        at org.apache.axis.message.RPCHandler.onStartChild(RPCHandler.java:220)
        at org.apache.axis.encoding.DeserializationContextImpl.startElement
(DeserializationContextImpl.java:883)
        at org.apache.axis.message.SAX2EventRecorder.replay
(SAX2EventRecorder.java:158)
        at org.apache.axis.message.MessageElement.publishToHandler
(MessageElement.java:681)
        at org.apache.axis.message.RPCElement.deserialize(RPCElement.java:244)
        at org.apache.axis.message.RPCElement.getParams(RPCElement.java:268)
        at org.apache.axis.client.Call.invoke(Call.java:1862)
        at org.apache.axis.client.Call.invoke(Call.java:1768)
        at org.apache.axis.client.Call.invoke(Call.java:1306)
        at com.touchcorp.soap.isacktruck.ISackTruckbindingStub.getSackTruckFees
(ISackTruckbindingStub.java:228)
        at com.touchcorp.remote.party.ISackTruckService.getSackTruckFees
(ISackTruckService.java:96)
        at com.touchcorp.remote.party.ISackTruckService.main
(ISackTruckService.java:133)
[ERROR] Call - -Exception: <org.xml.sax.SAXException: operation description is 
missing parameter description!>
Exception in thread "main" AxisFault
 faultCode: {http://xml.apache.org/axis/}Server.userException
 faultString: org.xml.sax.SAXException: operation description is missing 
parameter description!
 faultActor: null
 faultDetail:
        stackTrace: org.xml.sax.SAXException: operation description is missing 
parameter description!
        at org.apache.axis.message.RPCHandler.onStartChild(RPCHandler.java:220)
        at org.apache.axis.encoding.DeserializationContextImpl.startElement
(DeserializationContextImpl.java:883)
        at org.apache.axis.message.SAX2EventRecorder.replay
(SAX2EventRecorder.java:158)
        at org.apache.axis.message.MessageElement.publishToHandler
(MessageElement.java:681)
        at org.apache.axis.message.RPCElement.deserialize(RPCElement.java:244)
        at org.apache.axis.message.RPCElement.getParams(RPCElement.java:268)
        at org.apache.axis.client.Call.invoke(Call.java:1862)
        at org.apache.axis.client.Call.invoke(Call.java:1768)
        at org.apache.axis.client.Call.invoke(Call.java:1306)
        at com.touchcorp.soap.isacktruck.ISackTruckbindingStub.getSackTruckFees
(ISackTruckbindingStub.java:228)
        at com.touchcorp.remote.party.ISackTruckService.getSackTruckFees
(ISackTruckService.java:96)
        at com.touchcorp.remote.party.ISackTruckService.main
(ISackTruckService.java:133)

org.xml.sax.SAXException: operation description is missing parameter 
description!
org.xml.sax.SAXException: operation description is missing parameter 
description!
        at org.apache.axis.message.RPCHandler.onStartChild(RPCHandler.java:220)
        at org.apache.axis.encoding.DeserializationContextImpl.startElement
(DeserializationContextImpl.java:883)
        at org.apache.axis.message.SAX2EventRecorder.replay
(SAX2EventRecorder.java:158)
        at org.apache.axis.message.MessageElement.publishToHandler
(MessageElement.java:681)
        at org.apache.axis.message.RPCElement.deserialize(RPCElement.java:244)
        at org.apache.axis.message.RPCElement.getParams(RPCElement.java:268)
        at org.apache.axis.client.Call.invoke(Call.java:1862)
        at org.apache.axis.client.Call.invoke(Call.java:1768)
        at org.apache.axis.client.Call.invoke(Call.java:1306)
        at com.touchcorp.soap.isacktruck.ISackTruckbindingStub.getSackTruckFees
(ISackTruckbindingStub.java:228)
        at com.touchcorp.remote.party.ISackTruckService.getSackTruckFees
(ISackTruckService.java:96)
        at com.touchcorp.remote.party.ISackTruckService.main
(ISackTruckService.java:133)


But, if I go back and use Apache SOAP directly, everything seems to work just 
fine.  I am *not* using an operation style of "rpc" when I call via SOAP 
directly.  My code looks more like this:

	URL url = new URL(locator.getISackTruckPortAddress());
	String uri = "urn:uSackTruckFee";
	String method = "getSackTruckFees";
	Class type = com.touchcorp.soap.isacktruck.TSackTruckFeeInfo.class;
	Vector args = new Vector();

	// get short version of type class name
	String typeName = type.getName();
	int index = typeName.lastIndexOf(".");
	if (index > 0)
	    typeName = typeName.substring(index+1);

	// set up bean mappings
	SOAPMappingRegistry registry = new SOAPMappingRegistry();
    	BeanSerializer serializer = new BeanSerializer();
	registry.mapTypes(Constants.NS_URI_SOAP_ENC, new QName(uri, typeName), 
type, serializer, serializer);

	// build the call
	Call call = new Call();
	call.setSOAPMappingRegistry(registry);
	call.setTargetObjectURI(uri);
	call.setMethodName(method);
	call.setEncodingStyleURI(Constants.NS_URI_SOAP_ENC);
	call.setParams(args);

	// make the call
	Response response = call.invoke(url, "");

Help!

I have attached some of the relevant WSDL2Java-generated code below.  This is 
the most common error I am seeing with AXIS, and I get it with almost every 
method of this service I try.  


--------------------------------------------------------------------------------
----------------------------------------------------------------------------

============================
from ISackTruckbindingStub.java:
============================

    public com.touchcorp.soap.isacktruck.TSackTruckFeeInfo getSackTruckFees() 
throws java.rmi.RemoteException {
        if (super.cachedEndpoint == null) {
            throw new org.apache.axis.NoEndPointException();
        }
        org.apache.axis.client.Call _call = createCall();
        _call.setReturnType(new javax.xml.namespace.QName
("urn:uSackTruckFee", "TSackTruckFeeInfo"), 
com.touchcorp.soap.isacktruck.TSackTruckFeeInfo.class);
        _call.setUseSOAPAction(true);
        _call.setSOAPActionURI("urn:uSackTruckIntf-
ISackTruck#getSackTruckFees");
        _call.setOperationStyle("rpc");
        _call.setOperationName(new javax.xml.namespace.QName
("urn:uSackTruckIntf-ISackTruck", "getSackTruckFees"));

        java.lang.Object _resp = _call.invoke(new java.lang.Object[] {});

        if (_resp instanceof java.rmi.RemoteException) {
            throw (java.rmi.RemoteException)_resp;
        }
        else {
            try {
                return (com.touchcorp.soap.isacktruck.TSackTruckFeeInfo) _resp;
            } catch (java.lang.Exception _exception) {
                return (com.touchcorp.soap.isacktruck.TSackTruckFeeInfo) 
org.apache.axis.utils.JavaUtils.convert(_resp, 
com.touchcorp.soap.isacktruck.TSackTruckFeeInfo.class);
            }
        }
    }

============================
from TSackTruckFeeInfo.java:
============================

/**
 * TSackTruckFeeInfo.java
 *
 * This file was auto-generated from WSDL
 * by the Apache Axis WSDL2Java emitter.
 */

package com.touchcorp.soap.isacktruck;

public class TSackTruckFeeInfo  implements java.io.Serializable {
    private double deposit;
    private double hireFee;

    public TSackTruckFeeInfo() {
    }

    public double getDeposit() {
        return deposit;
    }

    public void setDeposit(double deposit) {
        this.deposit = deposit;
    }

    public double getHireFee() {
        return hireFee;
    }

    public void setHireFee(double hireFee) {
        this.hireFee = hireFee;
    }

    private java.lang.Object __equalsCalc = null;
    public synchronized boolean equals(java.lang.Object obj) {
        if (!(obj instanceof TSackTruckFeeInfo)) return false;
        TSackTruckFeeInfo other = (TSackTruckFeeInfo) obj;
        if (obj == null) return false;
        if (this == obj) return true;
        if (__equalsCalc != null) {
            return (__equalsCalc == obj);
        }
        __equalsCalc = obj;
        boolean _equals;
        _equals = true && 
            deposit == other.getDeposit() &&
            hireFee == other.getHireFee();
        __equalsCalc = null;
        return _equals;
    }

    private boolean __hashCodeCalc = false;
    public synchronized int hashCode() {
        if (__hashCodeCalc) {
            return 0;
        }
        __hashCodeCalc = true;
        int _hashCode = 1;
        _hashCode += new Double(getDeposit()).hashCode();
        _hashCode += new Double(getHireFee()).hashCode();
        __hashCodeCalc = false;
        return _hashCode;
    }

    // Type metadata
    private static org.apache.axis.description.TypeDesc typeDesc =
        new org.apache.axis.description.TypeDesc(TSackTruckFeeInfo.class);

    static {
        org.apache.axis.description.FieldDesc field = new 
org.apache.axis.description.ElementDesc();
        field.setFieldName("deposit");
        field.setXmlName(new javax.xml.namespace.QName("", "Deposit"));
        typeDesc.addFieldDesc(field);
        field = new org.apache.axis.description.ElementDesc();
        field.setFieldName("hireFee");
        field.setXmlName(new javax.xml.namespace.QName("", "HireFee"));
        typeDesc.addFieldDesc(field);
    };

    /**
     * Return type metadata object
     */
    public static org.apache.axis.description.TypeDesc getTypeDesc() {
        return typeDesc;
    }

    /**
     * Get Custom Serializer
     */
    public static org.apache.axis.encoding.Serializer getSerializer(
           java.lang.String mechType, 
           java.lang.Class _javaType,  
           javax.xml.namespace.QName _xmlType) {
        return 
          new  org.apache.axis.encoding.ser.BeanSerializer(
            _javaType, _xmlType, typeDesc);
    }

    /**
     * Get Custom Deserializer
     */
    public static org.apache.axis.encoding.Deserializer getDeserializer(
           java.lang.String mechType, 
           java.lang.Class _javaType,  
           javax.xml.namespace.QName _xmlType) {
        return 
          new  org.apache.axis.encoding.ser.BeanDeserializer(
            _javaType, _xmlType, typeDesc);
    }

}

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