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docs(java): update doc for jdtls

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docs/_posts/2017-02-11-use-vim-as-a-java-ide.md
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@ -10,8 +10,9 @@ commentsID: "Use Vim as a Java IDE"
# [Blogs](../blog/) >> Use Vim as a Java IDE
This tutorial introduces you to SpaceVim as a Java environment,
by using the `lang#java` layer, you make SpaceVim into a great lightweight Java IDE.
This article introduces you to SpaceVim as a Java environment.
Before reading this article, I recommend reading [Use vim as IDE](../use-vim-as-ide/), which is for the general usage.
With `lang#java` layer, spacevim can be built into a lightweight java integrated development environment.
Each of the following sections will be covered:
@ -19,6 +20,8 @@ Each of the following sections will be covered:
- [Enable language layer](#enable-language-layer)
- [Language server](#language-server)
- [neovim(`>=0.5.0`)](#neovim050)
- [vim or neovim(`<0.5.0`)](#vim-or-neovim050)
- [Code completion](#code-completion)
- [Code outline](#code-outline)
- [Rename symbol](#rename-symbol)
@ -35,12 +38,12 @@ Each of the following sections will be covered:
This tutorial is not intended to teach you Java itself.
If you have any problems,
feel free to join the [SpaceVim gitter chatting room](https://gitter.im/SpaceVim/SpaceVim)
feel free to join the [SpaceVim matrix room](https://chat.mozilla.org/#/room/#spacevim:matrix.org)
for general discussion.
### Enable language layer
`lang#java` layer is not loaded by default in SpaceVim, to use SpaceVim for java,
By default, the `lang#java` layer is not loaded in SpaceVim. To use SpaceVim for java,
you need to enable this layer in SpaceVim configuration file.
Press `SPC f v d` to open SpaceVim configuration file, and add following section:
@ -51,6 +54,39 @@ Press `SPC f v d` to open SpaceVim configuration file, and add following section
### Language server
There are two ways to configure the java language server protocol.
#### neovim(`>=0.5.0`)
If you are using `nvim(>=0.5.0)`. You need to use `enabled_clients` to specific the language servers.
for example:
```toml
[[layers]]
name = 'lsp'
enabled_clients = ['jdtls', 'clangd']
```
To override the command of client, you may need to use `override_client_cmds` option:
```toml
[[layers]]
name = "lsp"
enabled_clients = ['jdtls', 'clangd']
[layers.override_client_cmds]
jdtls = ["jdtls", "-configuration", "/home/user/.cache/jdtls/config", "-data", "/home/user/.cache/jdtls/workspace"]
```
You can install `jdtls` via packages manager. For example:
```
scoop install jdtls
```
For manual installation you can download precompiled binaries from the [official downloads site](http://download.eclipse.org/jdtls/snapshots/?d) and ensure that the PATH variable contains the bin directory of the extracted archive.
#### vim or neovim(`<0.5.0`)
To enable language server protocol support, you may need to enable lsp layer.
```toml