Trying to connect to a ftp server

I am able to connect to Cerberus (5.0.0.5) using the web browser or using a CoreFTP client, but I can't connect programatically using org.apache.commons.net.ftp.FTPClient. 

Below is my code (this is actually using the java ftpclient through Coldfusion) :

ftpsClient = CreateObject("java","org.apache.commons.net.ftp.FTPClient").init();
ftpsClient.connect(JavaCast("string","xxx.xxx.xxx.xxx"),21);
connected = ftpsClient.isConnected();

login = ftpsClient.login(JavaCast("string","username"),JavaCast("string","password"));

This is what I see in the ftp server log file:

2011/12/13 13:47:54  [0]  Client connected to Cerberus FTP Server 5.0.0.5 on 'machine'

2011/12/13 13:48:41  [1]  Incoming connection request on FTP interface 0 at xxx.xxx.xxx.xxx
2011/12/13 13:48:41  [1]  FTP connection request accepted from xxx.xxx.xxx.xxx
2011/12/13 13:48:45  [1]  USER svc.script
2011/12/13 13:48:45  [1]  331 User svc.script, password please 

At this point the Coldfusion/Java client returns "Truncated server reply".  I also tried not using the login, and instead sending the user command and pass command separately like this:

userCmd = ftpsClient.sendCommand(JavaCast("string","USER" ),JavaCast("string","username" ));

But as soon as I send the "USER" command I see the above in the log file and the same reply, "Truncated server reply".

When I use the cfftp tag like this:

<cfsetting requesttimeout="1000">

<cfftp action="open" connection="ftptest" secure="false"

    server="xxx.xxx.xxx.xxx" port="21"

    username="username" password-"password" timeout="1000" stoponerror="true">

I receive a "java.net.ConnectException: Connection timed out: connect"

Does anyone have any ideas?  Thanks much.