How do I pass a parameter to a .NET Web Service from a Java client
using the Apache Soap libraries? When I try to pass a simple string to
a method, it receive the parameter as NULL.

Hi there!

I'm happy to help you with this issue! After searching Google and
various Web Services related sites, I found a zip file containing
sample code which should help solve your problem.

http://www.XMLWebServices.cc is site providing many Web Services code
samples and articles. There, I found the following zip file in the
"Samples" section:

http://hosting.msugs.ch/eyesoft/ws/v1/apache_interop/Apache_.NET_Interop_Demo.zip

This file was written by a Microsoft engineer to demonstrate
interopability between Java clients using Apache SOAP and a .NET Web
Service. I have reviewed the code, and it contains exactly what you're
looking for. Specifically, "EchoClient.java" is where you will find
the best way to do it.

Additionally, the following tutorial at "Gopalan Suresh Raj's Web
Cornucopia" also provides a step-by-step example:
http://gsraj.tripod.com/dotnet/webservices/webservice_java_client.html

CSharphelp.com also provides a tutorial showing several methods for
consuming a .NET Web Service, including a Java client (about half way
down the page):
http://www.csharphelp.com/archives/archive53.html

Search terms I used:

apache soap .net web service
.net web service java parameter

I hope I've satisfactorily answered your question.

Good luck in your coding endeavours!

Axe

Thanks Axe-ga!! Although you didn't directly answer the problem you
led me the link http://hosting.msugs.ch/eyesoft/ws/v1/apache_interop/Apache_.NET_Interop_Demo.zip
which did.