pure java client making secure call to EJB in WAS 5

[Scott Presley]

I am building a pure java client, running outside of WAS 5 that will make a call to a secure EJB. I have tried to look over all of the docs I could find on the web and some of the postings here in this forum, but I�m still running into a problem. I am using WSCallbackHandlerImpl() specifying a username, realm, and password. When I execute my code at the command line, as soon as I execute the line of code, loginCTX.login() I am prompted to enter a username and password? Once I supply these needed credential, the rest of my code works fine and I am able to retrieve a home and then a remote interface to the EJB I want to communicate with. Does anyone know what I might be doing wrong? Again, there doesn�t seem to be any problems with access once I�m logged in, it�s just that I programmatically specify and username and password and halfway through execution I am prompted for the same info.
I�ve cut and pasted some snippets of code below in the order they�re executed:
1. Initialize the ORB object

 
Properties props = new Properties();
props.put("org.omg.CORBA.ORBClass", "com.ibm.CORBA.iiop.ORB");
props.put("com.ibm.CORBA.ORBInitRef.NameService","corbaloc:iiop:" + serverName + ":" + serverPort + "/NameService");
props.put("com.ibm.CORBA.ORBInitRef.NameServiceServerRoot","corbaloc:iiop:" + serverName + ":" + serverPort + "/NameServiceServerRoot");
ORB _orb = ORB.init((String[]) null, props);

2. Build InitialContext

Properties prop = new Properties();
prop.put( Context.INITIAL_CONTEXT_FACTORY, "com.ibm.websphere.naming.WsnInitialContextFactory" );
prop.put( Context.PROVIDER_URL, "corbaloc:iiop:localhost:2809" );
javax.naming.Context jndiContext = new InitialContext( prop );

3. Login

LoginContext lclc = new LoginContext("ClientContainer", new WSCallbackHandlerImpl(loginuid,loginrealm,loginpwd) );
lc.login(); 

As the lc.login() line is executed, a prompt appears asking for username and password. Has anyone had this problem or know if this is a symptom of something that is configured improperly??
Thanks in advance,
scott