This extension contains the OpenJDK 17 Java Runtime Environment (JRE) and Java Developement Kit (JDK).
OpenJDK 17 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 17 extension.
For the previous LTS version, see the OpenJDK 11 extension.
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",
"branch" : "1.0",
"runtime" : "org.freedesktop.Platform",
"runtime-version" : "21.08",
"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:/usr/bin" ]
}