graal

[![GraalVM](.github/assets/logo_320x64.svg)][website]

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GraalVM compiles applications ahead of time into standalone binaries that start instantly, provide peak performance with no warmup, and use fewer resources.
You can use GraalVM just like any other Java Development Kit in your IDE.

The project website at [https://www.graalvm.org/][website] describes how to [get started][getting-started], how to [stay connected][community], and how to [contribute][contributors].

## Documentation

Please refer to the [GraalVM website for documentation][docs].
You can find most of the documentation sources in the [_docs/_](docs/) directory in the same hierarchy as displayed on the website.
Additional documentation including developer instructions for individual components can be found in corresponding _docs/_ sub-directories.
The documentation for the Truffle framework, for example, is in [_truffle/docs/_](truffle/docs/).
This also applies to languages, tools, and other components maintained in [related repositories](#related-repositories).
Instructions for building GraalVM from source are in [`vm/README.md`](vm/README.md).

## Get Support

* Open a [GitHub issue][issues] for reproducible bugs and concrete feature requests.
* Use [GitHub Discussions](https://github.com/oracle/graal/discussions) or join the [GraalVM Slack][slack] for questions, design discussion, and general community support.
* Read the [contribution guide](CONTRIBUTING.md) before opening a pull request.
* Report security vulnerabilities according to the [Reporting Vulnerabilities guide][reporting-vulnerabilities], not in public issues.

## Repository Structure

This source repository is the main repository for GraalVM and includes the following components:

Directory | Description
------------ | -------------
[`.github/`](.github/) | Configuration files for GitHub issues, workflows, ….
[`ci/`](ci/) | Configuration files for internal CI/CD infrastructure.
[`ci_includes/`](ci_includes/) | Configuration include files for internal CI/CD infrastructure.
[`compiler/`](compiler/) | [Graal compiler][reference-compiler], a modern, versatile compiler written in Java.
[`espresso-compiler-stub/`](espresso-compiler-stub/) | A dummy GraalJVMCICompiler implementation for Espresso.
[`espresso-shared/`](espresso-shared/) | Espresso shared code for runtime class loading.
[`espresso/`](espresso/) | [Espresso][java-on-truffle], a meta-circular Java bytecode interpreter for the GraalVM.
[`regex/`](regex/) | TRegex, a regular expression engine for other GraalVM languages.
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