Help Building Request Using Apache SOAP

[Greg Pedder]

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 (WSDL).

  
<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>

I have the following code that will add parameters to the Body section, but I don't understand how to nest <UserName> and <Password> within the <comHdr> and <WSCredentials> tags

  
Vector parms = new Vector();
Code code = new Code();
parms.addElement(new Parameter("UserName", String.class, username, null));
parms.addElement(new Parameter("Password", String.class, password, null));
call.setParams(parms);