[Java] Redo testing setup

nvim/ftplugin/java.lua

@@ -0,0 +1,96 @@
+local home = os.getenv("HOME")
+local jdtls_path = home .. "/.local/share/nvim/mason/packages/jdtls"
+local workspace_dir = home .. "/.cache/jdtls/" .. vim.fn.fnamemodify(vim.fn.getcwd(), ":p:h:t")
+local equinox_path = vim.fn.glob(jdtls_path .. "/plugins/org.eclipse.equinox.launcher_*.jar")
+
+local on_attach = require('lsp-options').on_attach
+local capabilities = require('lsp-options').capabilities
+
+local keymap = vim.keymap
+
+local opts = { silent = true }
+-- ┌                                               ┐
+-- │                     Java                      │
+-- └                                               ┘
+local java_on_attach = function(client, bufnr)
+    on_attach(client, bufnr)
+
+    opts.desc = "Organize Imports"
+    keymap.set("n", "<leader>jo", "<cmd>lua require('jdtls').organize_imports()<CR>", opts)
+
+    opts.desc = "Extract variable"
+    keymap.set("n", "<leader>je", "<cmd>lua require('jdtls').extract_variable()<CR>", opts)
+
+    opts.desc = "Extract constant"
+    keymap.set("n", "<leader>je", "<cmd>lua require('jdtls').extract_constant()<CR>", opts)
+
+    opts.desc = "Test current method"
+    keymap.set("n", "<leader>jtm", "<cmd>lua require('jdtls').test_nearest_method()<CR>", opts)
+
+    opts.desc = "Test current class"
+    keymap.set("n", "<leader>jtc", "<cmd>lua require('jdtls').test_class()<CR>", opts)
+end
+
+
+require("jdtls").start_or_attach({
+    cmd = {
+        -- 💀
+        "java", -- or '/path/to/java21_or_newer/bin/java'
+
+        "-Declipse.application=org.eclipse.jdt.ls.core.id1",
+        "-Dosgi.bundles.defaultStartLevel=4",
+        "-Declipse.product=org.eclipse.jdt.ls.core.product",
+        "-Dlog.protocol=true",
+        "-Dlog.level=ALL",
+        "-Xmx1g",
+        "--add-modules=ALL-SYSTEM",
+        "--add-opens",
+        "java.base/java.util=ALL-UNNAMED",
+        "--add-opens",
+        "java.base/java.lang=ALL-UNNAMED",
+
+        -- 💀
+        "-jar",
+        equinox_path,
+
+        -- 💀
+        "-configuration",
+        jdtls_path .. "/config_linux",
+
+        -- 💀
+        -- See `data directory configuration` section in the README
+        "-data",
+        workspace_dir,
+    },
+
+    -- 💀
+    -- This is the default if not provided, you can remove it. Or adjust as needed.
+    -- One dedicated LSP server & client will be started per unique root_dir
+    --
+    -- vim.fs.root requires Neovim 0.10.
+    -- If you're using an earlier version, use: require('jdtls.setup').find_root({'.git', 'mvnw', 'gradlew'}),
+    root_dir = vim.fs.root(0, { ".git", "mvnw", "gradlew", "build.xml" }),
+
+    -- Here you can configure eclipse.jdt.ls specific settings
+    -- See https://github.com/eclipse/eclipse.jdt.ls/wiki/Running-the-JAVA-LS-server-from-the-command-line#initialize-request
+    -- for a list of options
+    settings = {
+        java = {},
+    },
+
+    -- Language server `initializationOptions`
+    -- You need to extend the `bundles` with paths to jar files
+    -- if you want to use additional eclipse.jdt.ls plugins.
+    --
+    -- See https://github.com/mfussenegger/nvim-jdtls#java-debug-installation
+    --
+    -- If you don't plan on using the debugger or other eclipse.jdt.ls plugins you can remove this
+    init_options = {
+        bundles = vim.split(
+            vim.fn.glob("$HOME/.local/share/nvim/mason/packages/java-*/extension/server/*.jar", true),
+            "\n"
+        ),
+    },
+    on_attach = java_on_attach,
+    capabilities = capabilities,
+})