update jdtls config

Author: YI

dot_config/nvim/ftplugin/java.lua

@@ -0,0 +1,4 @@
+local config = {
+  root_dir = vim.fs.dirname(vim.fs.find({ 'gradlew', '.git', 'mvnw' }, { upward = true })[1]),
+}
+require('jdtls').start_or_attach(config)

dot_config/nvim/lua/plugins.lua

@@ -128,6 +128,7 @@ return require('packer').startup({
     -- LSP server
     use {
       'neovim/nvim-lspconfig',
+      requires = { "mfussenegger/nvim-jdtls" },
       config = function() require('plugins.lspconfig') end
     }
 

dot_config/nvim/lua/plugins/lspconfig.lua

@@ -1,7 +1,7 @@
 local get_servers_to_install = function()
   local servers_to_install = {
     "clangd", "pyright", "jsonls", "dockerls", "rust_analyzer", "elixirls",
-    "jdtls", "zls", "gopls", "texlab", "rnix"
+    "zls", "gopls", "texlab", "rnix"
   }
   return servers_to_install
 end