nvim-lspconfig/lua/lspconfig/configs/gradle_ls.lua

-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-- This config is DEPRECATED.
-- Use the configs in `lsp/` instead (requires Nvim 0.11).
--
-- ALL configs in `lua/lspconfig/configs/` will be DELETED.
-- They exist only to support Nvim 0.10 or older.
-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
local util = require 'lspconfig.util'

local bin_name = 'gradle-language-server'
if vim.fn.has 'win32' == 1 then
  bin_name = bin_name .. '.bat'
end

return {
  default_config = {
    filetypes = { 'groovy' },
    root_dir = util.root_pattern(
      'settings.gradle', -- Gradle (multi-project)
      'build.gradle' -- Gradle
    ),
    cmd = { bin_name },
    -- gradle-language-server expects init_options.settings to be defined
    init_options = {
      settings = {
        gradleWrapperEnabled = true,
      },
    },
  },
  docs = {
    description = [[
https://github.com/microsoft/vscode-gradle

Microsoft's lsp server for gradle files

If you're setting this up manually, build vscode-gradle using `./gradlew installDist` and point `cmd` to the `gradle-language-server` generated in the build directory
]],
  },
}