jline has emacs-like bindings but is missing some that I use regularly.
M-f and M-b don't work. In fact any M- binding seems to just insert
the meta-less character (e.g., M-f inserts "f").
C-t does not work.
Those are just the ones I use often enough to notice.
I'm sure more are missing.
FWIW the gold standard here is GNU readline, which does nearly
everything right from a user's POV.
Block jline tracker bug.
A suggestion is to switch to the bindings used by eclipse (readline with libedit).