adding java completion

.config/nvim/init.vim

@@ -1,5 +1,3 @@
-let mapleader =","
-
 if ! filereadable(expand('~/.config/nvim/autoload/plug.vim'))
 	echo "Downloading junegunn/vim-plug to manage plugins..."
 	silent !mkdir -p ~/.config/nvim/autoload/
@@ -32,7 +30,33 @@ set clipboard=unnamedplus
 " Plugin section
 call plug#begin('~/.config/nvim/plugged')
 Plug 'donRaphaco/neotex', { 'for': 'tex'}
+Plug 'Shougo/deoplete.nvim', { 'do': ':UpdateRemotePlugins' }
+Plug 'lervag/vimtex', {'for': 'tex'}
+"Plug 'artur-shaik/vim-javacomplete2'
 call plug#end()
 
+" neotex
 let g:neotex_enabled = 2
 let g:neotex_pdflatex_alternative = 'xelatex'
+
+" deoplete
+let g:deoplete#enable_at_startup = 1
+let g:deoplete#enable_smart_case = 1
+let g:deoplete#sources = {}
+let g:deoplete#sources.java = ['jc', 'javacomplete2', 'file', 'buffer']
+call deoplete#custom#var('omni', 'input_patterns', {
+	\ 'tex': g:vimtex#re#deoplete
+	\})
+
+"tab as remapping for deoplete
+inoremap <silent><expr> <TAB>
+	\ pumvisible() ? "\<C-n>" :
+	\ <SID>check_back_space() ? "\<TAB>" :
+	\ deoplete#mappings#manual_complete()
+function! s:check_back_space() abort "" {{{
+	let col = col('.') - 1
+	return !col || getline('.')[col - 1] =~ '\s'
+endfunction "" }}}
+
+" javacomplete2
+"autocmd FileType java setlocal omnifunc=vim-javacomplete2#Complete