sourcegraph/java-language-server

Name: java-language-server

Owner: Sourcegraph

Description: Java language server

Forked from: eclipse/eclipse.jdt.ls

Created: 2016-11-08 06:38:23.0

Updated: 2018-05-04 08:35:12.0

Pushed: 2016-11-28 22:37:53.0

Homepage: null

Size: 1456

Language: Java

GitHub Committers

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README

This repository contains only the server implementation. For Visual Studio Code extension that uses this server visit

vscode-java

java-language-server

java-language-server is a server implementation that provides Java language smartness. The server adheres to the language server protocol and can be used with any editor that supports the protocol. The server utilizes Eclipse JDT, M2Eeclipse.

Features

• As you type reporting of parsing and compilation errors
• Code completion
• Javadoc hovers
• Code outline
• Code navigation
• Code lens (references)
• Highlights
• Code formatting
• Maven pom.xml project support

First Time Setup

1. Fork and clone the repository

2. Install Eclipse Neon Java EE that will have most needed already installed. Alternately, you can get the Eclipse IDE for Java developers and just instal Eclipse PDE from marketplace.

3. Once installed use File > Open Projects from File System... and point it java-language-server and Eclipse should automatically detect the projects and import it properly.

4. If you after import sees an error on pom.xml about Tycho, you can use Quick Fix (Ctrl+1) to install the Tycho maven integration.

Building from command line

1. Install Apache Maven

2. This command will build the server into /org.jboss.tools.vscode.product/target/repository folder:

   n clean verify
   

Managing connection types

Java Language server supports socket and named pipes to communicate with the client. Client can communicate its preferred connection methods by setting up environment variables

• For using named pipes set the following environment variables before starting the server.

  N_PIPE_NAME --> where client reads from
  UT_PIPE_NAME --> where client writes to
  

• For using plain sockets set the following environment variables before starting the server.

  N_PORT --> client reads
  UT_PORT --> client writes to
  

  optionally you can set host values for socket connections

  N_HOST
  UT_HOST
  

  For both connection types the client is expected to create the connections and wait for server the connect.

Feedback

• File a bug in GitHub Issues.
• Tweet us with other feedback.

License

EPL 1.0, See LICENSE file.