Switch to *eaf* buffer when catch "abnormally code" exception when

    (set-process-sentinel

     eaf-process

     #'(lambda (process event)

         (message "%s %s" process event)))

         (when (string-prefix-p "exited abnormally with code" event)

           (switch-to-buffer eaf-name))

         (message "%s %s" process (replace-regexp-in-string "\n$" "" event))))

    (message "EAF process starting...")))

(defun eaf-stop-process ()