My neovim configuration for java development and vuejs (using vim-plug plugin manager)

init.vim

call plug#begin()
Plug 'artur-shaik/vim-javacomplete2'
Plug 'sbdchd/neoformat'
Plug 'ctrlpvim/ctrlp.vim'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
Plug 'shougo/denite.nvim'
Plug 'majutsushi/tagbar'
Plug 'airblade/vim-rooter'
Plug 'scrooloose/nerdtree'

if has('nvim')
  Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }
else
  Plug 'Shougo/deoplete.nvim'
  Plug 'roxma/nvim-yarp'
  Plug 'roxma/vim-hug-neovim-rpc'
endif

let g:unite_source_grep_command = 'ag'
let g:unite_source_grep_default_opts =
    \ '-i --line-numbers --nocolor ' .
    \ '--nogroup --hidden --ignore ' .
    \ '''.hg'' --ignore ''.svn'' --ignore' .
    \ ' ''.git'' --ignore ''.bzr'''
let g:unite_source_grep_recursive_opt = ''

let g:airline_theme='simple'
let g:airline#extensions#tabline#enabled = 1
let g:airline#extensions#tabline#left_sep = ' '
let g:airline#extensions#tabline#left_alt_sep = '|'
let g:airline#extensions#tabline#enabled = 1
let g:airline_powerline_fonts = 1

let g:deoplete#enable_at_startup = 1
let g:NERDTreeDirArrowExpandable = '▸'
let g:NERDTreeDirArrowCollapsible = '▾'

autocmd FileType java setlocal omnifunc=javacomplete#Complete
call plug#end()

set number
nmap <F8> :TagbarToggle<CR>
map <C-n> :NERDTreeToggle<CR>