https://bugzilla.redhat.com/show_bug.cgi?id=1091711
--- Comment #5 from jangoolie@gmail.com --- (In reply to jangoolie from comment #4)
(In reply to jangoolie from comment #3)
+1
I can confirm I've also experienced this. It appears to be some problem with JLine compatiability with the Gnome3 terminal.
If I add the boot flag: -Djline.terminal=jline.UnsupportedTerminal to disable JLine then the console will allow me to type but is missing most of the features it needs to be a usefull console (no history, can't move the cursor etc.)
This is using FC20 x86_64 with Gnome3.
It appears to work fine using XFCE instead of Gnome3.
My mistake it still doesn't work if I install XFCE and try and run it from the XFCE terminal.
Upon further investigation, removing the SBT package and installing manually from the instruction here: http://www.scala-sbt.org/0.13/tutorial/Manual-Installation.html fixed my problem. So there must be something wrong with the configuration that is installed by the FC20 package.