I came across a weird issue with proxy's generated by the Axis2 code generator from a WCF WSDL. Basically there is ambiguity between the String type defined in the Microsoft WSDL for primitive types which gets generated in the proxy and the java.lang.String. Supposedly this issue has been fixed but I still had an issue with the code generator plugin that installs with the Eclipse Ganymede plugin manager. Anyway's, to work around it I just navigated to the error:

And specified the FQ name for the Java string type and it worked fine:

I have been struggling all week trying to get a client created with the NetBeans 6.5.1 IDE to communicate with a WCF service using the wsHttpBinding. The symptoms were that it would connect and just hang when I made the soap call. I took a look at the message that was being sent across the wire and I noticed that JAX-WS was not sending the WS-Addressing headers. So after much searching and hitting the Metro message board and gave up and moved onto something else. While I was working on that something else I happened to look at the "port" factory method on the proxy that's generated by wsimport and noticed that you could pass multiple "WebServiceFeature"s, one of which was one for WS-Addressing! Passed that in and voila, it worked! Here is an example:

try { // Call Web Service Operation
    yada.SystemService service = new yada.SystemService();
    yada.Sys port = service.getYadaSystem(new AddressingFeature(true, true));
    // TODO process result here
    yada.VersionInfo result = port.getVersion();
    System.out.println("Result = "+result);
} catch (Exception ex) {
    System.out.println(ex.getMessage());
}

You can read more about this class here. I have no idea why wsimport doesent just bake this into the proxy as the policy in the WSDL clearly states that it uses WS-Addressing by way of the UsingAddressing element. Strange...

I'm sure this is kitten play for any Java developer but for little ole me it took a bit to figure out. So here ya go:

import java.io.*;

...

try
{
    // Some code
}
catch (Exception ex)
{
    StringWriter sw = new StringWriter();
    PrintWriter pw = new PrintWriter(sw);
    ex.printStackTrace(pw);
    System.out.println(sw.toString());
}