Closed
Description
This is a windows conhost(good 'ol plain cmd) related annoyance where mouse events are not sent if Quick Edit Mode is enabled(as it is by default). This is more clearly discussed in https://stackoverflow.com/questions/46795072/how-to-get-mouse-input-inside-a-c-console-program-on-windows-10/46802726#46802726.
This really should come from jline itself but we could experiment temporary fix(if it's easily doable in spring-shell).