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eldoc signatures still not working in Java

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#481 2 comments 1 reaction 0 assignees View on GitHub

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
38/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
emacs-lisp, java
Domain
developer-experience

Research direction

Start with the minimal init.el in the issue and compare eldoc behavior in java-mode with the working behavior in go-mode, including the lsp-eldoc-enable-hover setting. Done means Java variable or method signatures appear in the minibuffer under the reported Emacs 29.3 and lsp-java setup.

Written by the indexing model from the issue text.

Description

Describe the bug

I have Emacs 29.3 on MacOS, and lsp-java 20240524.2207 installed from Melpa.

Within the past year, perhaps in an older Emacs or an older lsp-mode, the type signature of the Java variable or method would appear, in the fixed-pitch font, in the minibuffer, when the cursor was over the function name. There was no mouse hovering or UI involved.

In fact, I still have this behavior in lsp-mode for Golang variables and functions. A screenshot is attached. If I set lsp-eldoc-enable-hover to nil, the behavior in Golang mode becomes disabled. So I think this feature is related to eldoc.

I read one recent bug report and I installed the fixed version that was released and it's not resolving my issue.

Please help to point out which setting re-enables this, or whether a regression has appeared. Thanks.

To Reproduce

The simple init.el that I use to reproduce this is:

(require 'package)
(add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/") t)
(package-initialize)

(custom-set-variables
 ;; custom-set-variables was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 '(package-selected-packages '(go-mode lsp-java)))
(custom-set-faces
 ;; custom-set-faces was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 )

Screenshots

Screenshot 2024-06-23 at 00 39 28

^ the signatures appear in go-mode but not java-mode

Dominant language
Emacs Lisp
Stars
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Forks
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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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