Java Release Metadata

The update script in this repository collects a list of currently available JRE/JDK distributions and their metadata to store it as JSON files in the metadata/ directory in this repository.

Additionally the script stores MD5, SHA-1, SHA-256, and SHA-512 checksums of the artifacts which are compatible with md5sum, sha1sum, sha256sum, and sha512sum in the checksums/ directory in this repository.

Supported OpenJDK distributions:

• AdoptOpenJDK
• Corretto
• Dragonwell
• GraalVM Community Edition
• Java SE Reference Implementations
• Liberica
• Mandrel
• OpenJDK
• SapMachine
• Zulu Community

Usage

You can fetch the latest metadata for all releases at the following URL:

https://joschi.github.io/java-metadata/metadata/all.json

Example with cURL (requesting a compressed version which significantly reduces the transfer size):

curl --compressed -O https://joschi.github.io/java-metadata/metadata/all.json

If you want to fetch the checksum manifests for a JRE or JDK artifact, you can download it with the following URL template:

https://joschi.github.io/java-metadata/checksums/{vendor}/{artifact_filename}.{hash_function}

• vendor: The vendor of the artifact, for example zulu
• artifact_filename: The original filename of the artifact, for example zulu11.37.17-ca-jre11.0.6-linux_x64.tar.gz
• hash_algorithm: The hash function you want to use; valid values are md5, sha1, sha256, and sha512

Example with cURL and SHA-256 checksum:

# Download Zulu Community™ JRE 11.37.17 for Linux (x64)
curl -O https://static.azul.com/zulu/bin/zulu11.37.17-ca-jre11.0.6-linux_x64.tar.gz
# Download SHA-256 checksum manifest for Zulu Community™ JRE 11.37.17 for Linux (x64)
curl -O https://joschi.github.io/java-metadata/checksums/zulu/zulu11.37.17-ca-jre11.0.6-linux_x64.tar.gz.sha256
# Verify checksum
sha256sum -c zulu11.37.17-ca-jre11.0.6-linux_x64.tar.gz.sha256

Metadata structure

Field name	Description
vendor
filename	Filename of the artifact
release_type	ca (stable) or ea (early access)
version	Version of the JDK/JRE distribution
java_version	Java version the artifact is based on
jvm_impl	JVM implementation
os	Supported operating system
architecture	Supported machine architecture
file_type	The file extension of the artifact
image_type	JRE (jre) or JDK (jdk)
features	Features of the distribution
url	Full source URL of the artifact
md5	MD5 checksum of the artifact
md5_file	Filename of the MD5 checksum file
sha1	SHA-1 checksum of the artifact
sha1_file	Filename of the SHA-1 checksum file
sha256	SHA-256 checksum of the artifact
sha256_file	Filename of the SHA-256 checksum file
sha512	SHA-512 checksum of the artifact
sha512_file	Filename of the SHA-512 checksum file
size	Size of the artifact in bytes

Example:

{
  "vendor": "zulu",
  "filename": "zulu8.44.0.13-ca-fx-jdk8.0.242-linux_x64.tar.gz",
  "release_type": "ga",
  "version": "8.44.0.13",
  "java_version": "8.0.242",
  "jvm_impl": "hotspot",
  "os": "linux",
  "architecture": "x86_64",
  "file_type": "tar.gz",
  "image_type": "jdk",
  "features": [
    "javafx"
  ],
  "url": "https://static.azul.com/zulu/bin/zulu8.44.0.13-ca-fx-jdk8.0.242-linux_x64.tar.gz",
  "md5": "fda058637e054eae280eb8761824d064",
  "md5_file": "zulu8.44.0.13-ca-fx-jdk8.0.242-linux_x64.tar.gz.md5",
  "sha1": "f07e67b9773cadaf539e67b4e26957b9d85220b7",
  "sha1_file": "zulu8.44.0.13-ca-fx-jdk8.0.242-linux_x64.tar.gz.sha1",
  "sha256": "e35bad183b6309384fd440890b4c7888b30670006a6e10ce3d4fefb40fbefc93",
  "sha256_file": "zulu8.44.0.13-ca-fx-jdk8.0.242-linux_x64.tar.gz.sha256",
  "sha512": "2f650295baf38d99794343b04dd2dd81ebeff92fa9c3a8bf110700118d1879e20016c6ff441f4488e87dd1fc733b87836e90ec9ba26184d8288c400e11bc9057",
  "sha512_file": "zulu8.44.0.13-ca-fx-jdk8.0.242-linux_x64.tar.gz.sha512",
  "size": 155585453
}

See also the files inside the metadata/ directory.

Disclaimer

This project is in no way affiliated with any of the companies or projects offering and distributing the actual JREs and JDKs.

All respective copyrights and trademarks are theirs.