Autocommand event when JDTLS started, analog to LspAttach

[bratekarate]

I want to execute a command when JDTLS was started successfully. I can hook into LspAttach to execute commands after attach. However, JDTLS is not started yet at this point. Is there any way to "wait until JDTLS is started and then execute a command"?

[mfussenegger]

jdtls is started when LspAttach fires but loading the project/analysing the workspace might not be finished.

There's no standardized event in the language server protocol for that.
You could add a custom handlers["language/status"] handler to your config - it should eventually receive a ServiceReady message which you could react on

untested:

local config = {...} -- from readme

config.handlers["language/status"] = function(err, result)
  if result and result == "ServiceReady" then
    --- your logic
  end
end