I've googled "Java FTP" and found a several easy FTP classes for uploading files. The problem is that they don't work. When I use FTPConnection.java (uploaded below), I can connect and log in but not upload a file. I've tried to set debug-mode on, and everything seems to be ok. I see a welcome message from the server host, that my username and password is valid and how much space I've used. The only error message I get before I'm trying to transfer the file, is:
Could not set transfer type
200 TYPE is now 8-bit binary
200 PORT command successful
200 TYPE is now 8-bit binary
Does anyone know what this means/how to fix it or can show me another easy FTP class that works?

Thanks for your help!