A user identity can be established when authenticating to the server during the process of JNDI lookup by passing the JNDI security credential, as shown in the following example:

public static void main(String[] args) throws Exception {
    String operation = "process";

    // This is the request message XML
    String ns = "http://xmlns.oracle.com/DirectBinding_jws/EchoBPEL/BPELProcess1";
    String payloadXML = "<ns1:process xmlns:ns1=\"" + ns + "\">\n" +
                        "  <ns1:input>wew</ns1:input>\n" +
                        "</ns1:process>"; 

    String serviceAddress = "soadirect:/default/EchoBPEL!1.0/DService1";

    // Specify the direct binding connection properties
    Map<String, Object> props = new HashMap<String, Object>();
    props.put(Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory");
    props.put(Context.PROVIDER_URL, "t3://" + hostname + ':' + portname);
    props.put(Context.SECURITY_PRINCIPAL,username);
    props.put(Context.SECURITY_CREDENTIALS, password);

    // Create the direct binding connection, using those context properties
    DirectConnectionFactory factory = JNDIDirectConnectionFactory.newInstance();

    try {
       DirectConnection dc = factory.createConnection(serviceAddress, props);

        // Parse the XML request message
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        Document doc =
          dbf.newDocumentBuilder().parse(new InputSource(new StringReader(payloadXML)));

        // Prepare the payload for inclusion in the Message object
        Map<String, Element> payload = new HashMap<String, Element>();
        payload.put("payload", doc.getDocumentElement());

        Message<Element> request = XMLMessageFactory.getInstance().createMessage(payload);

        Message<Element> response = dc.request(operation, request);
    } finally {
        dc.close();
    }
}