Demos - mikesamuel/jline3 GitHub Wiki
REPL Console
Builtin support for console variables, scripts, custom pipes, widgets and object printing.
Details, see REPL Console
Autosuggestions
It suggests commands as you type based on command completer data and/or command arguments and options descriptions.
Details, see Autosuggestions
Groovy Language REPL
Methods, meta methods, Groovy indentifiers and fields completion.
Details, see Groovy Language REPL