yes there's a bit of java in my nvim config why do you ask?

lua/conf/plugins/treesitter.lua

@@ -0,0 +1,59 @@
+table.contains = function(self, string)
+  for _, v in pairs(self) do
+    if v == string then
+      return true
+    end
+  end
+  return false
+end
+
+return { 'nvim-treesitter/nvim-treesitter',
+  disable = vim.version.lt(vim.version(), { 0, 9, 2 }),
+  config = function()
+    vim.cmd("TSUpdate")
+  end,
+  function()
+    require('nvim-treesitter.configs').setup {
+      -- good default parsers
+      ensure_installed = { "c", "lua", "vim", "vimdoc", "markdown",
+        "markdown_inline", "java", "bash", "css", "html", "luadoc"
+      },
+
+      -- install missing parsers
+      auto_install = true,
+
+      -- indentation
+      indent = {
+        enable = true,
+
+        disable = function(lang, buf)
+          -- disable indenting in php (it's more broken with than without)
+          return table.contains({
+            "php"
+          }, lang)
+        end
+      },
+
+      -- enable highlighting
+      highlight = {
+        enable = true,
+        -- use vim highlighting in addition to treesitter
+        additional_vim_regex_highlighting = true,
+
+        disable = function(lang, buf)
+          -- disable in diff files
+          local langs = { "diff" }
+          if table.contains(langs, lang) then
+            return true
+          end
+
+          -- disable in big files
+          local ok, stats = pcall(vim.loop.fs_stat, vim.api.nvim_buf_get_name(buf))
+          if ok and stats and stats.size > (1024 * 100 * 10) --[[1MB]] then
+            return true
+          end
+        end
+      }
+    }
+  end
+}