is a non-project file, only syntax errors are reported | When other very similar project works.

[wviana]

Hello,
Here I have two projects, one of them is working really fine. But the other one looks like is not detecting .git or gradlew to define project, even I have those files in this project root.

This is my current jdtls config

local workspace_dir = vim.fn.fnamemodify(vim.fn.getcwd(), ':p:h:t')
local config = {
  cmd = {
    '/Users/wviana/.sdkman/candidates/java/17.0.6-zulu/bin/java',
        '-Declipse.application=org.eclipse.jdt.ls.core.id1',
        '-Dosgi.bundles.defaultStartLevel=4',
        '-Declipse.product=org.eclipse.jdt.ls.core.product',
        '-Dlog.protocol=true',
        '-Dlog.level=ALL',
        '-noverify',
        '-Xmx1G',
        '-javaagent:/Users/wviana/Apps/lombok.jar',
        -- '-Xbootclasspath/a:/Users/wviana/Apps/lombok.jar',
        '--add-modules=ALL-SYSTEM',
        '--add-opens', 'java.base/java.util=ALL-UNNAMED',
        '--add-opens', 'java.base/java.lang=ALL-UNNAMED',
        '-jar', '/usr/local/Cellar/jdtls/1.20.0/libexec/plugins/org.eclipse.equinox.launcher_1.6.400.v20210924-0641.jar',
        '-configuration', '/usr/local/Cellar/jdtls/1.20.0/libexec/config_mac',
        '-data', '/Users/wviana/.cache/jdtls-workspace/' .. workspace_dir,
  },
  on_attach = on_attach,
  capabilities = require('cmp_nvim_lsp').default_capabilities(vim.lsp.protocol.make_client_capabilities()),
  root_dir = require('jdtls.setup').find_root({'.git', 'mvnw', 'gradlew'}),
  init_options = {
    bundles = {
      vim.fn.glob('/Users/wviana/Apps/java-debug/com.microsoft.java.debug.plugin/target/com.microsoft.java.debug.plugin-*.jar')
    }
  }
}
jdtls.start_or_attach(config)

This is the output of JdtShowLogs for the failing project:

[START][2023-03-13 17:26:38] LSP logging initiated
[ERROR][2023-03-13 17:26:38] .../vim/lsp/rpc.lua:733	"rpc"	"/Users/wviana/.sdkman/candidates/java/17.0.6-zulu/bin/java"	"stderr"	"OpenJDK 64-Bit Server VM warning: Options -Xverify:none and -noverify were deprecated in JDK 13 and will likely be removed in a future release.\n"
[ERROR][2023-03-13 17:26:38] .../vim/lsp/rpc.lua:733	"rpc"	"/Users/wviana/.sdkman/candidates/java/17.0.6-zulu/bin/java"	"stderr"	"WARNING: Using incubator modules: jdk.incubator.vector, jdk.incubator.foreign\n"
[WARN][2023-03-13 17:26:42] .../lua/vim/lsp.lua:1065	"server_request: no handler found for"	"workspace/inlayHint/refresh"
[WARN][2023-03-13 17:26:44] ...lsp/handlers.lua:113	"The language server jdtls triggers a registerCapability handler despite dynamicRegistration set to false. Report upstream, this warning is harmless"
[ERROR][2023-03-13 17:26:44] ...lsp/handlers.lua:485	"Mar 13, 2023, 5:26:44 PM Command _java.reloadBundles.command not supported on client"

Is there anything else I can provide to help investigate it?

[lobophf]

Can you provide the project link on your Github? It may be helpful to investigate the issue.
I noticed you are using the old way of setting the root_dir variable.
You can try changing the path like this:

root_dir = vim.fs.dirname(vim.fs.find({'gradlew', '.git', 'mvnw'}, { upward = true })[1]),

[wviana]

So I started digging into the plugins code.
I placed a print and root_dir is being detected correctly.

diff --git a/lua/jdtls.lua b/lua/jdtls.lua
index ba96bc8..0fd24fe 100644
--- a/lua/jdtls.lua
+++ b/lua/jdtls.lua
@@ -686,6 +686,7 @@ function M._complete_compile()
 end
 
 local function on_build_result(err, result, ctx)
+  print('on_build_result(err, result, ctx)')
   local CompileWorkspaceStatus = {
     FAILED = 0,
     SUCCEED = 1,
@@ -795,6 +796,7 @@ end
 --- In a multi-module project this will only update the configuration of the
 --- module of the current buffer.
 function M.update_project_config()
+  print('M.update_project_config()')
   local params = { uri = vim.uri_from_bufnr(0) }
   request(0, 'java/projectConfigurationUpdate', params, function(err)
     if err then
@@ -808,6 +810,7 @@ end
 ---
 ---@param opts JdtUpdateProjectsOpts|nil configuration options
 function M.update_projects_config(opts)
+  print('M.update_projects_config(opts)')
   opts = opts or {}
   coroutine.wrap(function()
     local bufnr = api.nvim_get_current_buf()
diff --git a/lua/jdtls/setup.lua b/lua/jdtls/setup.lua
index 39dfef6..0fc63b7 100644
--- a/lua/jdtls/setup.lua
+++ b/lua/jdtls/setup.lua
@@ -234,6 +234,7 @@ function M.start_or_attach(config)
     or M.find_root({'.git', 'gradlew', 'mvnw'}, bufname)
     or vim.fn.getcwd()
   )
+  print('config.root_dir ', config.root_dir)
   config.handlers = config.handlers or {}
   config.handlers['language/status'] = config.handlers['language/status'] or status_callback
   config.handlers['workspace/configuration'] = config.handlers['workspace/configuration'] or configuration_handler

Just found one more project with same problem. Unfurtunly I can't share the projects, maybe I can take some time to build a minimum reproducible project.

[milind-shakya-sp]

Upvoting since I am facing the same exact issue.

[wviana]

Hi there. I find out what was the problem. The project that was not working was using Gradle 6.8. I've used a guide from Gradle website. Migrated the project into some 7 version. Now it works.

For figure it out, I think I called JdtCompile and than it got me an error about the Gradle version.

Think about trying to change jdtls code to rise those errors to user.