GraalVM is a wide-ranging project from Oracle Labs developing a new JIT Compiler and Polyglot Runtime for the JVM. It removes the isolation between programming languages and enables interoperability in a high-performance runtime. GraalVM includes the following components:
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Graal SDK contains long term supported APIs of GraalVM.
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Graal is a dynamic compiler written in Java that integrates with the HotSpot JVM.
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Truffle is a framework for implementing languages and instruments that use Graal as a dynamic compiler.
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Tools contains a set of tools for Truffle guest languages implemented using the instrumentation framework.
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Substrate VM is a framework that allows ahead-of-time (AOT) compilation of Java applications under closed-world assumption into executable images or shared objects.
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TRegex is an implementation of regular expressions which leverages Graal and Truffle for efficient compilation of automata.
Proceed to Oracle Technology Network page to download the latest release of Oracle Labs GraalVM bundled with JDK8. Make sure to accept the OTN License Agreement to download this software. Our open-source artifacts are also available on Maven Central repository.
A comprehensive GraalVM documentation can be found on the website.
It is divided into several sections:
If you can't find the answer you need or have a troubleshooting query, get in touch with us.
There are multiply examples on the website. To demonstrate GraalVM interoperability, let us refer to this tiny example, where you access Java from JavaScript code:
$ node --jvm
> var BigInteger = Java.type('java.math.BigInteger');
> console.log(BigInteger.valueOf(2).pow(100).toString(16));
10000000000000000000000000
The methods in other GraalVM supported languages can be also called with --polyglot flag:
$ node --jvm --polyglot
> console.log(Interop.eval('R', 'runif(100)')[0]);
0.8198353068437427
GraalVM is available for Linux and macOS on AMD64, and Solaris on Sparc.
- [Download GraalVM]((http://www.oracle.com/technetwork/oracle-labs/program-languages/downloads/index.html) and extract the archive to your file system.
- Add the GraalVM
/binfolder to yourPATHenvironment variable in order to deploy the executables. - Optionally set the
JAVA_HOMEenvironment variable to resolve to the GraalVM installation directory. You can also specify GraalVM as the JRE or JDK installation in your Java ID.
Get acquainted with our contributing guide to learn how you can take part in improving Graal. Contribute your code or improvements on GitHub.
We adopted a Code of Conduct that we expect project contributors to follow.
Please read our Contributor Covenant Code of Conduct to understand what actions will and will not be tolerated.
Please report bugs or enhancement requests on GitHub Issues. We listen to input and feedback from the community. We cannot give guarantees for issues to be addressed and will make decisions whether to address an issue based on the overall project direction. Customers using the enterprise edition can report their bugs via the standard support channels and according to the service level agreements.
There is a community edition and an enterprise edition of Graal VM. The community edition is distributed under a GPLv2 open source license. It is free to use in production and comes with no strings attached, but also no guarantees or support. The enterprise edition is available from the Oracle Technology Network under an evaluation license. It provides improved performance and security for production deployments. Each GraalVM component is licensed: Truffle and its dependency Graal SDK are licensed under the GPL 2 with Classpath exception. The Tools project is licensed under the GPL 2 with Classpath exception. The TRegex project is licensed under the GPL 2 with Classpath exception. The Graal compiler is licensed under the GPL 2. The Substrate VM is licensed under the GPL 2.