(require 'eglot)

                                        ;
(add-to-list 'eglot-server-programs
             `(java-mode . ("jdtls"
                            :initializationOptions
                            (:settings
                             (:java
                              (:format
                               (:enabled t :comments (:enabled t) :onType (:enabled t) 
                                         :settings
                                (:url "file:///data/cay/bin/cay-eclipse.formatter.xml"
                                      :profile "cay"))))))))