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I'm using neovim v0.4.4, vim-plug, and uiiaoo/java-syntax.vim.

For some unknown reason(s), syntax highlighting from java-syntax only works on the 1st java buffer. For example:

$ nvim file1.java
:e file2.java

$ nvim notJava.txt
:vs file1.java
:sp file2.java

In both cases, only file1.java has syntax highlighting from java-syntax, while file2 doesn't.

My init.vim

filetype on
filetype plugin on
syntax on

" In vim-plug
    Plug 'neoclide/coc.nvim', {'branch': 'release'}
    Plug 'uiiaoo/java-syntax.vim', {'for': 'java'}

" For coc.nvim
let g:coc_global_extensions = [
    \ 'coc-java',
    \ 'coc-highlight',
]

I don't see anything here that would interfere with java-syntax. What might be the cause for only the first Java buffer getting the syntax highlighting?

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8
  • 1
    If java-syntax is setup correctly, the for clause should be unnecessary. Filetype plugins and syntaxes already only load when needed, so you’re not usually saving anything extra there. I wonder if somehow that’s what’s getting in the way?
    – D. Ben Knoble ♦
    Nov 16, 2020 at 14:14
  • @D.BenKnoble I added the for just in case. The problem was there before adding for.
    – ChocolateOverflow
    Nov 16, 2020 at 15:14
  • Does :set ft? tell you filetype=java in both file1.java and file2.java?
    – filbranden ♦
    Nov 16, 2020 at 17:22
  • 2
    @JohnZhau This line in java-syntax.vim looks odd: let b:current_syntax = "java-syntax.vim". I believe it should set it to "java", which matches the file type... I haven't had time to check whether this can be what causes the issue you're having, but that's where I would have started...
    – filbranden ♦
    Nov 17, 2020 at 17:56
  • 1
    I've found that disabling sheerun/vim-polyglot solved the issue. I'll update & answer with furthur details after I've got polyglot to work with java-syntax.
    – ChocolateOverflow
    Nov 19, 2020 at 6:53

1 Answer 1

Reset to default
2

I've found that disabling sheerun/vim-polyglot solved the problem. I'm not sure why exactly polyglot was causing it, but seeing as Java isn't supported by polyglot, I disabled it by putting the following line before polyglot is loaded.

let g:polyglot_disabled = ['java']

For reference, here's my plugin portion (I'm using vim-plug)

call plug#begin('$HOME/.config/nvim/plugged')
   " Some other plugins
    let g:polyglot_disabled = ['java']
    Plug 'sheerun/vim-polyglot'
call plug#end()
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