SOAP Help Building Request With Nested Tags

Question

I have been struggling with Apache SOAP to try and build a request. Specifically, I don't understand how to embed these elements into the Header and Body sections. More specifically, how to do this nested tags.
Thanks for any advice you can provide.
Below, is a sample of the request I need to send to the server.
<SOAP-ENV:Envelope xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <SOAP-ENV:Header>
          <ContinueHeader xmlns="http://www.openuri.org/2002/04/soap/conversation/">
               <uniqueID>111111111111111</uniqueID>
          </ContinueHeader>
     </SOAP-ENV:Header>
     <SOAP-ENV:Body>
          <subscribe xmlns="http://xxxx/xxxx/xxxx/service">
               <comHdr>
                    <WSCredentials>
                         <UserName>xxxxxxx</UserName>
                         <Password>xxxxxxxx</Password>
                    </WSCredentials>
               </comHdr>
          </subscribe>
     </SOAP-ENV:Body>
</SOAP-ENV:Envelope>

Answer 1

I can add the <UserName>xxxxxxx</UserName> <Password>xxxxxxxx</Password> to the body of the request using:
Vector parms = new Vector();
parms.addElement(new Parameter("UserName", String.class, username, null));
parms.addElement(new Parameter("Token", String.class, password, null));
call.setParams(parms);I just don't know how to add those tags within the <comHdr> and <WSCredentials> tags.