feat: add jdtls

nvim/ftplugin/java.lua

@@ -0,0 +1,46 @@
+local jdtls = require("jdtls")
+
+jdtls.start_or_attach({
+  cmd = { "jdtls" },
+  root_dir = vim.fs.dirname(vim.fs.find({ "settings.gradle", ".git", "pom.xml" }, { upward = true })[1]),
+  init_options = {
+    bundles = vim.list_extend(
+      {
+					-- Mason: java-debug-adapter
+					-- stylua: ignore
+					vim.fn.glob( "~/.local/share/nvim/mason/packages/java-debug-adapter/extension/server/com.microsoft.java.debug.plugin-*.jar", 1),
+      },
+      -- Mason: java-test
+      -- stylua: ignore
+      vim.split(vim.fn.glob("~/.local/share/nvim/mason/packages/java-test/extension/server/*.jar", 1), "\n")
+    ),
+  },
+  on_attach = function()
+    jdtls.setup_dap() -- Create new dap adapter for java
+
+    -- nvim-jdtls specific mappings
+    vim.keymap.set("n", "<a-o>", jdtls.organize_imports, {})
+    vim.keymap.set("n", "crv", jdtls.extract_variable, {})
+    vim.keymap.set("v", "crv", jdtls.extract_variable, {})
+    vim.keymap.set("n", "crc", jdtls.extract_constant, {})
+    vim.keymap.set("v", "crc", jdtls.extract_constant, {})
+    vim.keymap.set("v", "crm", jdtls.extract_method, {})
+
+    vim.keymap.set("n", "<leader>df", jdtls.test_class, {})
+    vim.keymap.set("n", "<leader>dn", jdtls.test_nearest_method, {})
+  end,
+})
+
+local dap_status, dap = pcall(require, "dap")
+if not dap_status then
+  return
+end
+
+dap.configurations.java = {
+  {
+    name = "Launch current file",
+    type = "java",
+    request = "launch",
+    program = "${file}",
+  },
+}