Problem using VB Client with a JAVA Webservice

Question

Hi people!
I'm using JDeveloper (9.0.3) to create a JAVA Webservice on OC4J container. I followed tutorial of Oracle and I got to execute my webservice, including I can invoke my methods by HTTP using HTML forms.
I need to invoke my methods using a VB Client with MIcrosoft SOAP ToolKit. My VB code is:
Function autenticar(login As String, senha As String)
Dim ObjWS As New MSSOAPLib30.SoapClient30
Dim retorno As Variant
Call ObjWS.MSSoapInit("http://10.71.200.40:8888/iSimp-Web-Root/br.gov.anp.isimp.controleVersao.ControleVersaoEJB?WSDL")
retorno = ObjWS.autentica(login, senha)
autenticar = retorno
End Function
My webservice publish a method called autentica that receives two parameters (a login and a password) and authenticates to obtain access to my system.
When I try to execute this function, I got this message error:
No deserializer found to deserialize a ":login" using encoding style "http://schemas.xmlsoap.org/soap/encoding/". [java.lang.illegalArgumentException]
Anyone knows what is this error?

Answer 1

If you could post what solved your problem that would be useful for others that run into the same issue. Thanks if possible!
Mike.