There's a report at technomancy/leiningen#850 of this issue on Windows + cygwin + mintty, which sounds like it's not detecting the need for UnixTerminal. @orfjackal has included a workaround that fixes things for him, but it seems like ideally this would be done by jline so that projects using jline don't all have to do the same workaround.

I haven't reproduced this locally yet, but I thought I'd remembered seeing things work as expected in cygwin. Could just be mis-remembering, because the terminal selection code appears to be only based on OS name.

Thoughts?