Trouble invoking Axis service with multiple parameters

Question

Hallo Java experts,
I have a problem with Axis 1.2RC2 (and Tomcat 5.0.19, JDK 1.5, Win XP) that might be quite simple, but I'm not so experienced and running out of ideas.
Everything works fine as long as I use a single Parameter. But I can't invoke service methods with more parameters, independent of the parameters' (simple) types! Different exceptions are thrown, depending on the way I invoke the service. It's either ...
- a java.lang.IllegalArgumentException (case 1)
"Tried to invoke method public java.lang.String test.server.TestSoapBindingImpl.printLongs(long,long) with arguments java.lang.Long,null. The arguments do not match the signature."
- or an org.xml.sax.SAXException (case 2)
"SimpleDeserializer encountered a child element, which is NOT expected, in something it was trying to deserialize."
Here's an example of a simple web service, that takes two longs and should return a string. In case 1 the service is invoked using a service locator in case 2 with a 'Call' object and explicitly set parameter types.
Thanks in advance for your help!
Dave
service[b]
public class TestSoapBindingImpl implements test.server.Test{
  public String printLongs(long long_1, long long_2){
    return "long_1 = " +long_1 +", long_2 = " +long_2;
[b]case 1
client
public class TestClient {
  public static void main (String[] args) throws Exception {     
    TestService service = new TestServiceLocator();
    Test testProxy = service.gettest();     
    long longVal = 1L; 
    response = testProxy.printLongs(longVal, longVal);
    System.out.println(response);
SOAP messsage
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
   <soapenv:Body>
      <in6 xmlns="urn:TestNS">1</in6>
      <in7 xmlns="urn:TestNS">1</in7>
   </soapenv:Body>
</soapenv:Envelope>
Axis' log file
Part of the log, where only the first argument of 'printLongs' is properly converted before the exception is thrown.
17886  org.apache.axis.utils.JavaUtils
        - Trying to convert java.lang.Long to long
17886  org.apache.axis.i18n.ProjectResourceBundle
        - org.apache.axis.i18n.resource::handleGetObject(value00)
17886  org.apache.axis.providers.java.RPCProvider
        -   value:  1
17886  org.apache.axis.i18n.ProjectResourceBundle
        - org.apache.axis.i18n.resource::handleGetObject(dispatchIAE00)
17986  org.apache.axis.providers.java.RPCProvider
        - Tried to invoke method public java.lang.String test.server.TestSoapBindingImpl.printLongs(long,long) with arguments java.lang.Long,null.  The arguments do not match the signature.
java.lang.IllegalArgumentException
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at org.apache.axis.providers.java.RPCProvider.invokeMethod(RPCProvider.java:384)
      at org.apache.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:281)
     at org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java:319)
     at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
     at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
     at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
     at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java:450)
     at org.apache.axis.server.AxisServer.invoke(AxisServer.java:285)
     at org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:653)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
     at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:301)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
case 2
client
public class TestClient2
  public static void main(String [] args) {
    try {
       String endpoint =
         "http://localhost:1234/axis1.2rc2/services/test";
       Service  service = new Service();
       Call     call    = (Call) service.createCall();
       call.setTargetEndpointAddress( new java.net.URL(endpoint) );
       call.setOperationName(new QName("urn:TestNS", "printLongs") );
       call.addParameter("in6",
                         org.apache.axis.Constants.XSD_LONG,
                         javax.xml.rpc.ParameterMode.IN);
       call.addParameter("in7",
                         org.apache.axis.Constants.XSD_LONG,
                         javax.xml.rpc.ParameterMode.IN);
       call.setReturnType(org.apache.axis.Constants.XSD_STRING);
       String response = (String) call.invoke( new Object[] { 1L, 1L } );
       System.out.println(response);
    } catch (Exception e) {
       System.err.println(e.toString());
SOAP messsage
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
   xmlns:xsd="http://www.w3.org/2001/XMLSchema"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
   <soapenv:Body>
      <ns1:printLongs soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:ns1="urn:TestNS">
         <in6 href="#id0"/>
         <in7 href="#id0"/>
      </ns1:printLongs>
      <multiRef id="id0" soapenc:root="0" soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xsi:type="xsd:long" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/">1</multiRef>
   </soapenv:Body>
</soapenv:Envelope>
Exception
AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException
faultSubcode:
faultString: org.xml.sax.SAXException: SimpleDeserializer encountered a child element, which is NOT expected, in something it was trying to deserialize.
faultActor:
faultNode:
faultDetail:
     {http://xml.apache.org/axis/}stackTrace:org.xml.sax.SAXException: SimpleDeserializer encountered a child element, which is NOT expected, in something it was trying to deserialize.
  at org.apache.axis.encoding.ser.SimpleDeserializer.onStartChild(SimpleDeserializer.java:143)
  at org.apache.axis.encoding.DeserializationContext.startElement(DeserializationContext.java:1031)
  at org.apache.axis.message.SAX2EventRecorder.replay(SAX2EventRecorder.java:165)
  at org.apache.axis.message.MessageElement.publishToHandler(MessageElement.java:1140)
  at org.apache.axis.message.RPCElement.deserialize(RPCElement.java:238)
  at org.apache.axis.message.RPCElement.getParams(RPCElement.java:386)
  at org.apache.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:148)
  at org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java:319)
  at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
  at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
  at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
  at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java:450)
  at org.apache.axis.server.AxisServer.invoke(AxisServer.java:285)
  at org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:653)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
  at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:301)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
  ....

Answer 1

Dave, not sure if you still are looking for an answer but i hate seeing unreplied posts so i felt i needed to post something. I'm just beginning with this stuff as well so take my suggestions with a grain of salt....or a beer. Anyways, case 2 would show that you are getting your parameters through properly because the "deserialization" errror is targetted towards the soap reply. Most likely you are trying to receive back a none primitive type. :-D i.e. such as the problem that i'm having.
hope that helps somewhat.
graeme.