"Some input files use unchecked or unsafe operations."

[soleera]

Actual behavior (Required!)

Error messages on first compile:

Error detected while processing function <SNR>138_JobNeoVimResponseHandler[3]..javacomplete#server#CompilationJobHandler:                                                                                            
line   10:                                                                                                                                                                                                           
Note: Some input files use unchecked or unsafe operations.                                                                                                                                                           
Press ENTER or type command to continue 

Error detected while processing function <SNR>138_JobNeoVimResponseHandler[3]..javacomplete#server#CompilationJobHandler:                                                                                            
line   10:                                                                                                                                                                                                           
Note: Recompile with -Xlint:unchecked for details.

Java completion lists take a long time to load (approximately 4 seconds) when typing things such as import java. or System.

Expected behavior (Required!)

No error messages & a shorter time to load completion lists

The steps to reproduce actual behavior (Required!)

1. Install vim-Javacomplete2 through Vimplug
2. Open a java file (error messages appear)
3. Type import java. (lags for ~4 seconds)

Environment (Required!)

• OS: Gentoo (Linux v4.12.4)
• Neovim version: Neovim v0.2.0
• Java version: IcedTea JDK 3.6.0

Q&A

• Yes, I tried minimal .vimrc configuraion:

  1 filetype plugin indent on
  2 set rtp +=~/.local/share/nvim/site/autoload/plug.vim
  3 set termguicolors
  4 set number
  5 
  6 call plug#begin('~/.local/share/nvim/plugged')
  7 Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }
  8 Plug 'artur-shaik/vim-javacomplete2'
  9 call plug#end()
  10 
  11 " Deoplete settings
  12 let g:deoplete#enable_at_startup = 1
  13 if !exists('g:deoplete#omni#input_patterns')
  14     let g:deoplete#omni#input_patterns = {}
  15 endif
  16 
  17 " Java settings
  18 autocmd FileType java setlocal omnifunc=javacomplete#Complete
  19 
  20 " Debug settings
  21 let g:JavaComplete_JavaviDebug = 1
  22 let g:JavaComplete_JavaviLogfileDirectory = '~/JavaLogs'

• Yes, I have enabled logs with JCdebugEnableLogs and can put here content of JCdebugGetLogContent command, if you need: Nothing shown in logs

• Even, if you wish, I can set g:JavaComplete_JavaviDebug to 1, than set ``, and put here server logs, too: Nothing shown in logs

[ricmen]

Same for me OS: Ubuntu Xenial VIM: 7.4 Minimal configuration but the same error even just opening a new Class without type anything

[rust20]

I'm having the exact same issue on neovim v0.2.2 when I tried to run command JCserverCompile