KotlinLanguageServer VS nvim-jdtls

There's a community-made one, but of course as much effort as has been put into it it's not as featureful as JetBrains's own stuff.

Kotlin is probably the worst case for Neovim. While there is a language server for Kotlin, it's not very advanced and does not look like it's actively developed.

Hi, if you are going to do Kotlin the easiest choice is android studio with Kotlin plugin. Using Vscode is more tricky because Jetbrains does not want to support lsp for Kotlin so you only have https://github.com/fwcd/kotlin-language-server available to write Kotlin on Vscode.

Kotlin Language Server puts a warning on this code, because the bar inside the lambda shadows the function argument bar. Flow typing solves this problem by eliminating the need to redefine bar as a new non-nullable variable in the branch where we've verified it's non-nullable.

You want to change something about that? Go and help over at the kotin lsp server. It's maintained, and welcomes contributions. I sometimes use it in my day job (writing Kotlin backend code)

There is https://github.com/fwcd/kotlin-language-server, but I wouldn't expect something more official from a company that refuse to support LSP in their IDEs. JetBrains is the Apple of the IDE world.

Oddly enough, we use mostly the same languages. However, I would advise against using neovim with Kotlin: its language server has an excessive memory usage and its debugger is cumbersome with neovim (I haven't managed to get it working, and currently it also lacks an entry in nvim-dap's wiki).

I'll bring up the Kotlin LSP[0] every time I see Kotlin on HN because I really hope the LSP takes off (which would make it viable to use Kotlin with a non-IntelliJ editor).

Kotlin as a language looks really cool, but I don't want to give up terminal-based, modal editing (which I'd have to in order to use IntelliJ).

Along those lines, I once tried diving into using Gradle outside IntelliJ, and I couldn't find any good resources to help with that. If folks have hints/links-to-blog-posts with regards to that as well, that'd be great!

[0] https://github.com/fwcd/kotlin-language-server#this-reposito...

I've tried [this Kotlin LSP](https://github.com/fwcd/kotlin-language-server) and it isn't perfect. It's not complete, but it does some of the basic things.

I've downloaded kotlin language server from here: https://github.com/fwcd/kotlin-language-server

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.