private static final String DOMAIN = "10.20.0.125";

private static final String HOST = "10.20.0.125";

private static final int PORT = 5222;

private String userName ="admin2@localhost";

private String passWord = "asdfasdf";

XMPPTCPConnectionConfiguration.Builder configBuilder = XMPPTCPConnectionConfiguration.builder();
    configBuilder.setUsernameAndPassword(userName, passWord);
    configBuilder.setSecurityMode(ConnectionConfiguration.SecurityMode.disabled);
    configBuilder.setResource("Android");
    configBuilder.setServiceName(DOMAIN);
    configBuilder.setHost(HOST);
    configBuilder.setPort(PORT);

connection.connect();
 login();

connection.connect();
 login(userName ,passWord,"Android" );

configBuilder.setResource("Android");
configBuilder.setUsernameAndPassword(userName, passWord);