Disable JShell history

Question

JShell by default enables a persistent history of everything typed, which can be recalled by pressing the up arrow.

Where is the setting to turn this ❝feature❞ off?

Also, how do I even clear the current history? Maybe I'm dumb but I can't figure out the command. /reset seems to do nothing.

Troat

Really don't think there is yet an option for that(/help /history doesn't display one either), considering /history -all is what you're referring to. Possibly looking into github.com/jline/jline2/wiki/Configuration-Properties and making use of one such might help. Btw, I'd reached there from the article by Robert Field => cr.openjdk.java.net/~rfield/tutorial/….... and to understand better, what is the need of doing that anyway? – Leveridge

Well maybe disable things like autocomplete, should be good or easy to run inside emacs for example – Reckon

Answer 1

Also, how do I even clear the current history?

What I'm proposing is clearly a hack but it seems to be working, at least in Windows 10 with JDK11.0.4:

Run Registry Editor and search for the '/J/Shell' key. Once found (under HKCU and HKUsers), delete all /H/I/S/T/O/R/Y_/L/I/N/E_ values under HKUsers. That fixed it for me; so far, the darn thing works, nothing looks broken...

Mutton