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SDK Extension for OpenJDK 23

This extension contains the OpenJDK 23 Java Runtime Environment (JRE) and Java Developement Kit (JDK).

OpenJDK 23 is the current latest version. This is not a long-term support (LTS) version and will be periodically updated as new JDKs are released.

For the current LTS version, see the OpenJDK 21 extension.

For the previous LTS version, see the OpenJDK 17 extension.

Usage

You can bundle the JRE with your Flatpak application by adding this SDK extension to your Flatpak manifest and calling the install.sh script. For example:

{
  "id" : "org.example.MyApp",
  "runtime" : "org.freedesktop.Platform",
  "runtime-version" : "24.08",
  "sdk" : "org.freedesktop.Sdk",
  "sdk-extensions" : [
    "org.freedesktop.Sdk.Extension.openjdk"
  ],
  "modules" : [
    {
      "name" : "openjdk",
      "buildsystem" : "simple",
      "build-commands" : [
        "/usr/lib/sdk/openjdk/install.sh"
      ]
    },
    {
      "name" : "myapp",
      "buildsystem" : "simple",
      ....
    }
  ]
  ....
  "finish-args" : [
    "--env=PATH=/app/jre/bin:/app/bin:/usr/bin"
  ]
}

Developement

Build and install

flatpak-builder --user --install --force-clean flatpakbuildir org.freedesktop.Sdk.Extension.openjdk.yaml

Uninstall

flatpak uninstall --user org.freedesktop.Sdk.Extension.openjdk