Input sought on POC for Shell mode client (Issuing sequential commands to a SSH server and getting results back for each)

[evilC]

I have written a POC for opening an SSHJ client in Shell mode, issuing sequential commands to it, and getting back the contents of StdIn, StdErr and the exit code for each issued command.
Would appreciate any input as to whether there are any better ways of doing this, or how I could improve what I have.
https://github.com/evilC/sshj-shell-client
(And yes, I know that you can chain multiple commands together in one exec(), but that's not what I want)