jshell> /set mode mine normal -command
| Created new feedback mode: mine

jshell> /set mode mine -delete -retain

jshell> /set fe
| /set feedback -retain normal
|
| Available feedback modes:
| concise
| mine
| normal
| silent
| verbose

jshell> /set mode mine normal -command
| Mode to be created already exists: mine -- /set mode mine normal -command
| See /help /set mode for help.