lspkind.nvim VS nvim-jdtls

There's a cmp-icons plugin: https://github.com/onsails/lspkind.nvim and also you can see the cmp documentation inside vim running :h cmp I spend many hours reading each plugin documentation to customize all my plugins. I hope I've helped.

If you are referring specifically to icons in your autocompletion suggestions menu you have to set it to use them. This can be achieved manually with the format key in the nvim-cmp setup (assuming you are using nvim-cmp) or with a plugin like lspkind.nvim

If you use neovim, you can refer to my init.lua; I use vim-go, lsp and other goodies like lspkind to display vscode-like pictograms.

-- Provide some indication that rust-analyzer is busy! local lsp_status = require('lsp-status') lsp_status.register_progress() -- Basic rust/lsp/cmp settings from https://sharksforarms.dev/posts/neovim-rust/ local nvim_lsp = require('lspconfig') local opts = { tools = { -- rust-tools options autoSetHints = true, hover_with_actions = true, inlay_hints = { show_parameter_hints = false, parameter_hints_prefix = "", other_hints_prefix = "=> ", }, }, -- all the opts to send to nvim-lspconfig -- these override the defaults set by rust-tools.nvim -- see https://github.com/neovim/nvim-lspconfig/blob/master/doc/server_configurations.md#rust_analyzer server = { -- on_attach is a callback called when the language server attachs to the buffer on_attach = lsp_status.on_attach, capabilities = lsp_status.capabilities, settings = { -- to enable rust-analyzer settings visit: -- https://github.com/rust-analyzer/rust-analyzer/blob/master/docs/user/generated_config.adoc -- and more: https://github.com/simrat39/rust-tools.nvim/wiki/Server-Configuration-Schema ["rust-analyzer"] = { -- enable clippy on save checkOnSave = { command = "clippy" }, } } }, } require('rust-tools').setup(opts) -- Setup Completion -- See https://github.com/hrsh7th/nvim-cmp#basic-configuration -- Used for super-tab functionality local has_words_before = function() local line, col = unpack(vim.api.nvim_win_get_cursor(0)) return col ~= 0 and vim.api.nvim_buf_get_lines(0, line - 1, line, true)[1]:sub(col, col):match("%s") == nil end local feedkey = function(key, mode) vim.api.nvim_feedkeys(vim.api.nvim_replace_termcodes(key, true, true, true), mode, true) end local lspkind = require('lspkind') local cmp = require'cmp' cmp.setup({ completion = { autocomplete = true }, -- Enable LSP snippets snippet = { expand = function(args) vim.fn["vsnip#anonymous"](args.body) end, }, mapping = { [''] = cmp.mapping.select_prev_item(), [''] = cmp.mapping.select_next_item(), [''] = cmp.mapping.scroll_docs(-4), [''] = cmp.mapping.scroll_docs(4), [''] = cmp.mapping.complete(), [''] = cmp.mapping.close(), [''] = cmp.mapping.confirm({ behavior = cmp.ConfirmBehavior.Insert, select = true, }), -- Add tab support [""] = cmp.mapping(function(fallback) if cmp.visible() then cmp.select_next_item() elseif vim.fn["vsnip#available"](1) == 1 then feedkey("(vsnip-expand-or-jump)", "") elseif has_words_before() then cmp.complete() else fallback() -- The fallback function sends a already mapped key. In this case, it's probably ``. end end, { "i", "s" }), [""] = cmp.mapping(function() if cmp.visible() then cmp.select_prev_item() elseif vim.fn["vsnip#jumpable"](-1) == 1 then feedkey("(vsnip-jump-prev)", "") end end, { "i", "s" }), }, -- Installed sources sources = { { name = 'nvim_lsp' }, --, trigger_characters={'.', ":"} }, { name = 'vsnip' }, { name = 'path' }, { name = 'buffer' }, { name = 'nvim_lsp_signature_help' }, { name = 'nvim_lsp_document_symbol' }, }, -- Fancy symbols formatting = { format = lspkind.cmp_format({ mode = 'symbol_text', -- show both symbol & text for now maxwidth = 50, -- prevent the popup from showing more than provided characters (e.g 50 will not show more than 50 characters) -- The function below will be called before any actual modifications from lspkind -- so that you can provide more controls on popup customization. (See [#30](https://github.com/onsails/lspkind-nvim/pull/30)) --before = function (entry, vim_item) --... --return vim_item --end }) }, completion = { autocomplete = true }, })

All the snippets, mapping, formatting and sources part in the above code snippet is expalained nicely in the plugin's documentation. For above code to work, you also have to install lspkind which provides awesome icons in the code completions.

To style the completion popup, you need to add formatting. Going by the cute little scissors, you probably want to install lsp-kind and add something like this to your cmp.setup

https://github.com/onsails/lspkind-nvim (optionally)

I copy pasted the icons from https://github.com/onsails/lspkind-nvim/blob/master/lua/lspkind/init.lua and added the spaces:

I recommend that you do not configure jdtls like the other language servers, it is better to use the nvim-jdtls plugin.

Java is actually pretty good with Neovim, jdtls and this plugin. One of the best language servers and I'm using it on a regular base with medium to large projects, mostly spring-based. No Android though.

-- See `:help vim.lsp.start_client` for an overview of the supported `config` options. local config = { -- The command that starts the language server -- See: https://github.com/eclipse/eclipse.jdt.ls#running-from-the-command-line cmd = { -- 💀 'java', -- or '/path/to/java17_or_newer/bin/java' -- depends on if `java` is in your $PATH env variable and if it points to the right version. '-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', '~/.local/share/nvim/mason/packages/jdtls/plugins/org.eclipse.equinox.launcher_1.6.500.v20230717-2134.jar', -- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^ -- Must point to the Change this to -- eclipse.jdt.ls installation the actual version -- 💀 '-configuration', '~/.local/share/nvim/mason/packages/jdtls/config_linux', -- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^ -- Must point to the Change to one of `linux`, `win` or `mac` -- eclipse.jdt.ls installation Depending on your system. -- 💀 -- See `data directory configuration` section in the README '-data', '/path/to/unique/per/project/workspace/folder' }, -- 💀 -- 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 root_dir = require('jdtls.setup').find_root({'.git', 'mvnw', 'gradlew'}), -- 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 = {} }, } -- This starts a new client & server, -- or attaches to an existing client & server depending on the `root_dir`. require('jdtls').start_or_attach(config)

I can get by with https://github.com/mfussenegger/nvim-jdtls

This and this provided no viable solutions for me

I tried to configure jdtls for my NeoVim I followed https://github.com/mfussenegger/nvim-jdtls install instruction. and I faced this error does anyone successfully configured jdtls ? help T ^ T

Am I adding it to the wrong configuration option? Some places I see it added as a referencedLibary - https://github.com/mfussenegger/nvim-jdtls

Sure. Any server that lspconfig supports will work. But for java development is better if you use nvim-jdtls. The documentation in lsp-zero has a guide on how to setup nvim-jdtls.

Here' my java.lua for nvim-jdtls which solves the nil issue and add more features.