如何扩展用 WebFault 注释的 wsimport 生成的异常？

Question

I'm building a web service in Java from an existing WSDL. The wsimport tool has generated all the Java classes bound to the elements in the service's schema. In particular, the fault declaration yields the following class:

@javax.xml.ws.WebFault(name = "Fault", targetNamespace = "http://my.company.com/service-1")
public class ServiceFault extends java.lang.Exception {
    // constructors and faulInfo getter
}

Now I'd like to extend this class, so I can add more behavior:

public class MyServiceFault extends ServiceFault {
    // some behavior
}

When I now throw instances of MyServiceFault from my application, I expect these errors to be properly serialized to XML in the SOAP answer. But instead, I get something like this:

<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
  <env:Header/>
  <env:Body>
    <env:Fault>
      <faultcode>env:Server</faultcode>
      <faultstring>Some fault string.</faultstring>
    </env:Fault>
  </env:Body>
</env:Envelope>

That is, I am completely missing the faultInfo element . My SOAP stack treats MyServiceFault as any other exception, not as an exception representing a fault in the service.

I thought first it was because the @WebFault annotation wasn't inherited by MyServiceFault , but I've tried again after explicitly adding this annotation, without success.

Any idea what I am doing wrong here?

Answer 1

For what it's worth, I've implemented it this way.

import javax.xml.ws.WebFault;

@WebFault(name = "SomeException")
public class SomeException extends Exception {

    private FaultBean faultInfo;

    public SomeException(String message, FaultBean faultInfo) {
        super(message);
        this.faultInfo = faultInfo;
    }

    public SomeException(String message, FaultBean faultInfo,
            Throwable cause) {
        super(message, cause);
        this.faultInfo = faultInfo;
    }

    public FaultBean getFaultInfo() {
        return faultInfo;
    }
}

which produces something like:

<?xml version="1.0" ?>
<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/">
  <S:Body>
    <S:Fault xmlns:ns4="http://www.w3.org/2003/05/soap-envelope">
      <faultcode>S:Server</faultcode>
      <faultstring>SomeErrorString</faultstring>
      <detail>
        <ns2:SomeException xmlns:ns2="http://namespace/">
          <message>SomeErrorMessage</message>
        </ns2:SomeException>
      </detail>
    </S:Fault>
  </S:Body>
</S:Envelope>