IntelliJ completion in Neovim. Depends on neovim-java-client.

Download the zip file from releases page. This is the IntelliJ plugin which provides functionality for Neovim which you can use with deoplete and neovim-intellij-complete-deoplete.

Install the neovim-intellij-complete plugin for IDEA, Android Studio, or other Jetbrains IDE and deoplete + neovim-intellij-complete-deoplete for Neovim. In order to install this plugin from disk, follow the instructions here : Plugin disk installation instructions

• Run NVIM_LISTEN_ADDRESS=127.0.0.1:7650 nvim
• Select neovim->connect from your IDE, from the top bar (which should be there if you've installed the IntelliJ plugin correctly).
• Enter 127.0.0.1:7650 in the dialog box that opens.
• Your Neovim instance should echo Intellij connected.

Now the autocompletion should work. Note that it will only work files which are included in the project which is opened on your IDE which you connected to neovim.