Update from source

java/flake.nix

@@ -3,11 +3,7 @@
 
   inputs.nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1.*.tar.gz";
 
-  outputs =
-    { self
-    , nixpkgs
-    ,
-    }:
+  outputs = { self, nixpkgs }:
     let
       javaVersion = 20; # Change this value to update the whole stack
       overlays = [
@@ -18,22 +14,14 @@
         })
       ];
       supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
-      forEachSupportedSystem = f:
-        nixpkgs.lib.genAttrs supportedSystems (system:
-          f {
-            pkgs = import nixpkgs { inherit overlays system; };
-          });
+      forEachSupportedSystem = f: nixpkgs.lib.genAttrs supportedSystems (system: f {
+        pkgs = import nixpkgs { inherit overlays system; };
+      });
     in
     {
       devShells = forEachSupportedSystem ({ pkgs }: {
         default = pkgs.mkShell {
-          packages = with pkgs; [ gradle jdk maven ];
-          programs.vscode = {
-            extensions = with pkgs.vscode-extensions; [
-              mkhl.direnv
-              redhat.java
-            ];
-          };
+          packages = with pkgs; [ gradle jdk maven jdt-language-server ];
         };
       });
     };