I tried setting IntelliJ IDEA to Emacs key bindings, but I had to switch back to the default bindings. With the Emacs-like key bindings my fingers automatically expected a lot of things to work that IDEA plainly did not support (like kill ring).

My preference when I am not using Emacs is to make a clean break so my finger macros don't run wild, often unintentionally pressing key bindings that do other things than I expect.