SFTP connection through Java asking for weird authentication

Question

So I\'m writing a little program that needs to connect to a remote server through SFTP, pull down a file, and then processes the file. I came across JSch through some answer

Answer 1

While the solution in the self-accepted answer is correct, it lacks any explanation.

The problem is that the OP have a Kerberos/GSSAPI authentication set as the preferred (the JSch default). Yet OP does not seem to actually use/want it, as OP claims not to specify any username or password for the Kerberos prompts.

The solution is to remove the Kerberos/GSSAPI (gssapi-with-mic) from the list of preferred authentication methods:

session.setConfig(
    "PreferredAuthentications", 
    "publickey,keyboard-interactive,password");