# J2V8

**Repository Path**: mirrors_geowarin/J2V8

## Basic Information

- **Project Name**: J2V8
- **Description**: Java Bindings for V8
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-08-08
- **Last Updated**: 2026-01-03

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

J2V8
====

[![Build Status](https://secure.travis-ci.org/eclipsesource/J2V8.png)](http://travis-ci.org/eclipsesource/J2V8)
[![Maven Central](https://img.shields.io/maven-central/v/com.eclipsesource.j2v8/j2v8_win32_x86.svg)](http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22com.eclipsesource.j2v8%22)

J2V8 is a set of Java bindings for V8. J2V8 focuses on performance and tight integration with V8. It also takes a 'primitive first' approach, meaning that if a value can be accessed as a primitive, then it should be. This forces a more static type system between the JS and Java code, but it also improves the performance since intermediate Objects are not created.

We developed J2V8 as a high performance engine for our multi-platform mobile toolkit [tabris.js](https://tabrisjs.com) and it is a great choice for executing JavaScript on Android devices.

Building J2V8
=============
Building J2V8 requires building both the native parts and the Java library (.jar file). To build the native parts we first build node.js as a library and then statically link J2V8 to that. The Java parts are built with maven.

Building on MacOS
-----------------
```
 sh ./build-node.sh
 sh ./buildJ2V8_macos.sh
 mvn clean verify
```

Building on Linux
-----------------
```
export CCFLAGS="${CCFLAGS} -fPIC" 
export CXXFLAGS="${CXXFLAGS} -fPIC" 
export CPPFLAGS="${CPPFLAGS} -fPIC" 
#sh ./build-node.sh
cp -r /data/jenkins/node .
cd jni
g++ -I../node -I../node/deps/v8 -I../node/deps/v8/include \
    -I../node/src -I /data/jenkins/tools/hudson.model.JDK/jdk-7/include/ \
    -I /data/jenkins/tools/hudson.model.JDK/jdk-7/include/linux  \
    com_eclipsesource_v8_V8Impl.cpp -std=c++11 -fPIC -shared -o libj2v8_linux_x86_64.so \
    -Wl,--whole-archive ../node/out/Release/libnode.a  -Wl,--no-whole-archive \
    -Wl,--start-group \
                      ../node/out/Release/libv8_libbase.a \
                      ../node/out/Release/libv8_libplatform.a \
                      ../node/out/Release/libv8_base.a \
                      ../node/out/Release/libv8_nosnapshot.a \
                      ../node/out/Release/libuv.a \
                      ../node/out/Release/libopenssl.a \
                      ../node/out/Release/libhttp_parser.a \
                      ../node/out/Release/libgtest.a \
                      ../node/out/Release/libzlib.a \
                      ../node/out/Release/libcares.a \
    -Wl,--end-group \
    -lrt -D NODE_COMPATIBLE=1
mvn clean verify
```

This will build J2V8 with node.js support. To disable this support, remove the `-D NODE_COMPATIBLE=1` option.

Tutorials
==========
 * [Getting Started With J2V8](http://eclipsesource.com/blogs/getting-started-with-j2v8/)
 * [Registering Java Callbacks with J2V8](http://eclipsesource.com/blogs/2015/06/06/registering-java-callbacks-with-j2v8/)
 * [Implementing WebWorkers with J2V8](http://eclipsesource.com/blogs/2015/05/28/implementing-webworkers-with-j2v8/)
 * [Multithreaded JavaScript with J2V8](http://eclipsesource.com/blogs/2015/05/12/multithreaded-javascript-with-j2v8/)
 * [Using J2V8 with Heroku](http://eclipsesource.com/blogs/2015/06/04/using-j2v8-with-heroku/)

Articles
========
 * [Announcing J2V8 4](http://eclipsesource.com/blogs/2016/07/20/announcing-j2v8-4/)
 * [Running Node.js on the JVM](http://eclipsesource.com/blogs/2016/07/20/running-node-js-on-the-jvm/)
 * [Shipping J2V8 as an AAR](http://eclipsesource.com/blogs/2015/11/04/shipping-j2v8-as-an-aar/)
 * [Announcing J2V8 3.0](http://eclipsesource.com/blogs/2015/07/08/j2v8-3-0-released/)
 * [J2V8 2.2 New and Noteworthy](http://eclipsesource.com/blogs/2015/04/23/j2v8-2-2-new-and-noteworthy/)
 * [Announcing J2V8 2.0](http://eclipsesource.com/blogs/2015/02/25/announcing-j2v8-2-0/)
 * [Highly Efficient Java & JavaScript Integration](http://eclipsesource.com/blogs/2014/11/17/highly-efficient-java-javascript-integration/)

Presentations
=============
 * [J2V8 A Highly Efficient JS Runtime For Java](https://www.eclipsecon.org/na2015/session/j2v8-highly-efficient-js-runtime-java)
 * [Running JavaScript Efficiently in a Java World](http://www.slideshare.net/irbull/enter-js)

Other Resources
===============
Here is a list of articles I've written on J2V8 [http://eclipsesource.com/blogs/tag/j2v8/](http://eclipsesource.com/blogs/tag/j2v8/).
 
Who is using J2V8?
========

Here are some projects that use J2V8:
* [tabris.js](https://tabrisjs.com)
* [tern.java](https://github.com/angelozerr/tern.java)
* [PlantUML](http://plantuml.com/)
* [jooby](http://jooby.org/doc/assets)

License
=====
The code is published under the terms of the [Eclipse Public License, version 1.0](http://www.eclipse.org/legal/epl-v10.html).