bug:

[ndzuki]

Neovim version (nvim -v)

0.11.4

Operating system/version

6.12.48-1-MANJARO

Read debugging tips

• I have read through the debugging tips.

Add the debug logs

• I have set log_level = vim.log.levels.DEBUG and pasted the log contents below.

Log file

Log file: /home/nd/.local/state/nvim/conform.log
2025-11-19 14:55:07[WARN] Formatter 'npm-groovy-lint' timeout
2025-11-19 14:55:50[WARN] Formatter 'npm-groovy-lint' timeout
2025-11-19 14:55:58[WARN] Formatter 'npm-groovy-lint' timeout
2025-11-19 14:58:00[WARN] Formatter 'npm-groovy-lint' timeout
2025-11-19 14:58:48[WARN] Formatter 'npm-groovy-lint' timeout
2025-11-19 14:59:02[WARN] Formatter 'npm-groovy-lint' timeout
2025-11-19 14:59:07[WARN] Formatter 'npm-groovy-lint' timeout
2025-11-19 14:59:14[WARN] Formatter 'npm-groovy-lint' timeout
2025-11-19 14:59:31[WARN] Formatter 'npm-groovy-lint' timeout
2025-11-19 15:00:02[WARN] Formatter 'npm-groovy-lint' timeout
2025-11-19 15:09:09[WARN] Formatter 'npm-groovy-lint' timeout
2025-11-19 15:09:48[WARN] Formatter 'npm-groovy-lint' timeout
2025-11-19 15:10:10[WARN] Formatter 'npm-groovy-lint' timeout
2025-11-19 15:10:17[WARN] Formatter 'npm-groovy-lint' timeout
2025-11-19 15:11:34[WARN] Formatter 'npm-groovy-lint' timeout
2025-11-19 15:20:06[WARN] Formatter 'npm-groovy-lint' timeout

Formatters for this buffer:
npm-groovy-lint ready (groovy) /home/nd/.local/share/nvim/mason/bin/npm-groovy-lint

Other formatters:
buf unavailable: Command 'buf' not found
gofumpt ready (go) /home/nd/.local/share/nvim/mason/bin/gofumpt
goimports-reviser ready (go) /home/nd/.local/share/nvim/mason/bin/goimports-reviser
golines ready (go) /home/nd/.local/share/nvim/mason/bin/golines
gomodifytags error: Unknown formatter. Formatter config missing or incomplete
jq ready (json) /home/nd/.local/share/nvim/mason/bin/jq
markdownlint-cli2 ready (markdown) /home/nd/.local/share/nvim/mason/bin/markdownlint-cli2
ruff ready (python) /home/nd/.local/share/nvim/mason/bin/ruff
shellharden ready (bash) /home/nd/.local/share/nvim/mason/bin/shellharden
sqruff unavailable: Command 'sqruff' not found
stylua ready (lua) /home/nd/.local/share/nvim/mason/bin/stylua
taplo ready (toml) /home/nd/.local/share/nvim/mason/bin/taplo
templ ready (templ) /home/nd/.local/share/nvim/mason/bin/templ

Describe the bug

format groovy file will retun "Formatter 'npm-groovy-lint' timeout"

What is the severity of this bug?

minor (annoyance)

Steps To Reproduce

1.install 'npm-groovy-lint' with mason.
2. setup fromatters_by_ft { groovy = { 'npm-groovy-lint' }
3.nvim demo.groovy , send ':w'

Expected Behavior

format groovy file

Minimal example file

#!/usr/bin/env groovy

// ==================== Git Operations ====================

def nodeGitCheckout(Map config) {
git branch: config.branch,
credentialsId: config.credentialsId,
url: config.url
}

Minimal init.lua

-- DO NOT change the paths and don't remove the colorscheme
local root = vim.fn.fnamemodify("./.repro", ":p")

-- set stdpaths to use .repro
for _, name in ipairs({ "config", "data", "state", "cache" }) do
  vim.env[("XDG_%s_HOME"):format(name:upper())] = root .. "/" .. name
end

-- bootstrap lazy
local lazypath = root .. "/plugins/lazy.nvim"
if not vim.loop.fs_stat(lazypath) then
  vim.fn.system({
    "git",
    "clone",
    "--filter=blob:none",
    "--single-branch",
    "https://github.com/folke/lazy.nvim.git",
    lazypath,
  })
end
vim.opt.runtimepath:prepend(lazypath)

-- install plugins
local plugins = {
  "folke/tokyonight.nvim",
  {
    "stevearc/conform.nvim",
    config = function()
      require("conform").setup({
        log_level = vim.log.levels.DEBUG,
        -- add your config here
      })
    end,
  },
  -- add any other plugins here
}
require("lazy").setup(plugins, {
  root = root .. "/plugins",
})

vim.cmd.colorscheme("tokyonight")
-- add anything else here
{
    'stevearc/conform.nvim',
    event = { 'BufWritePre' },
    cmd = { 'ConformInfo' },
    keys = {
      {
        '<leader>f',
        function()
          require('conform').format { async = true, lsp_fallback = true }
        end,
        mode = '',
        desc = '[F]ormat buffer',
      },
    },
    opts = {
      notify_on_error = false,
      format_on_save = function(bufnr)
        local disable_filetypes = { c = true, cpp = true }
        if disable_filetypes[vim.bo[bufnr].filetype] then
          return nil
        else
          return {
            timeout_ms = 500,
            lsp_format = 'fallback',
          }
        end
      end,
      formatters_by_ft = {
        lua = { 'stylua' },
        groovy = { 'npm-groovy-lint' },
      },
    },
  },

Additional context

No response

[channelsixlabs]

Quick addendum to this as I'm experiencing the same thing.

A previous Issue bug #447 references a similar error, however manually adding the following also no longer works so npm-groovy-lint is effectively non-functional.

    groovy = { "npm-groovy-lint" },
    formatters = {
      ["npm-groovy-lint"] = {
        command = "npm-groovy-lint",
        args = { "--failon=none", "--fix", "$FILENAME" },
        stdin = false,
      },
    },

[the-citto]

not sure if my issue is the same, but so it seems
also I need to add that I noticed my issue only on WSL, not on native Linux

using black, isort and ruff for python
set timeout_ms to 50,000
timeout warnings happen in less than a second

tried with 1 formatter, any, and no timeouts - two or more formatter -> timeouts

not that good with Lua to read the source code, let alone trying to help with a PR, but I did some thorough troubleshooting:
it seems that Ruff finishes first, which makes sense as it's much faster
then either Black or Isort give the warning as they finish after - the log tracks only one
never saw a warning from ruff
interesting thing is that they all format anyway - just the warning is misleading