Get byte[] response from getWebServiceTemplate().marshalSendAndReceive() in Spring-WS

Question

In target WebService in response is only xs:base64binary and JAXB does not generate a response type. In my invoke:

public Object signMessage(SigningRequestType request) {
        JAXBElement<SigningRequestType> jAXBElement = new ObjectFactory().createSigningRequestType(request);
        return getWebServiceTemplate().marshalSendAndReceive(jAXBElement,
                new SoapActionCallback(SIGN_METHOD_ACTION));
}

returns an Object and I can't simply cast to byte[] or serialize it. How can I extract a byteArray result from the response?

UDP: Add a little more information.

ObjectFactory() method:

@XmlElementDecl(namespace = "http://www.roskazna.ru/eb/sign/types/sgv", name = "SigningResponseType")
    public JAXBElement<byte[]> createSigningResponseType(byte[] value) {
        return new JAXBElement<byte[]>(_SigningResponseType_QNAME, byte[].class, null, ((byte[]) value));
    }

XSD:

<xs:element name="SigningResponseType" type="cst:notEmptyB64Binary"/>

Answer 1

Helped my colleague Senior.

In this case marshalSendAndReceive() returns JAXBElement in fact. So:

public byte[] signMessage(SigningRequestType request) throws IOException {
        JAXBElement<SigningRequestType> jAXBElement 
            = new ObjectFactory().createSigningRequestType(request);

        final Object o = getWebServiceTemplate().marshalSendAndReceive(jAXBElement,
                new SoapActionCallback("http://www.roskazna.ru/eb/sign/types/sgv/Sign"));

        return (byte[]) ((JAXBElement) o).getValue();
    }