NeoVim JDTLS configuration

Question

for my many tries to configure JDTLS (in past I do it and it work very well) I can't do that. Something weird I observed that java standard packages (java.util., java.lang. etc) aren't indexed. What can be a problem? LSP outoup

I used standard nvim-jdtls config:

local config = {
    cmd = {'/path/to/jdt-language-server/bin/jdtls'},
    root_dir = vim.fs.dirname(vim.fs.find({'gradlew', '.git', 'mvnw'}, { upward = true })[1]),
}
require('jdtls').start_or_attach(config)

I tried Coc-jdtls, my own jdtls config, nvim-jdtls, java-language-server and every time problem is the same: standard java packages aren't indexed.