how to setup additional params to add .jar file (Groovy with vim-lsp-settings)

Goal

• Code autocompletion for Groovy in Vim with LSP

What I did

• add plugin
  • vim-lsp
  • vim-lsp-settings
  • asyncomplete
  • asyncomplete-lsp.vim
• configure personal settings (vi ~/.vimrc)
  • VimでLSPを使ってKotlinを書く - プログラマのはしくれダイアリー

Problem

• No proposals about groovy class in the autocomplete popup menu
  • Advanced LSP setup for Groovy : neovim

• I found an example for coc.nvim but not for vim-lsp
  • unable to resolve base groovy classes · Issue #17 · GroovyLanguageServer/groovy-language-server · GitHub

Solution

• run :LspSettingsGlobalEdit and write as follows

{
  "groovy-language-server": {
    "workspace_config": {
      "groovy": {
        "classpath": [
          "/path/to/groovy/4.0.1/lib",
          "/path/to/personal/.groovy/lib"
        ]
      }
    }
  }
}