This GitHub Organization is a home for JDK EA pkgs for Nix. It contains a fork of nixos/nixpkgs.
The main repository for this Organization/Project is nixpkgs-jdk-ea/nixpkgs
The default branch jdk-ea-25 of nixpkgs-jdk-ea/nixpkgs is an integration branch that will make available one or more JDK packages and updates to build tools like Gradle that support those JDKs.
The currently targeted EA release is JDK 25 EA and the currently available EA JDKs are listed below.
- NOTE
-
Currently there are no JDKs here that are not available on Nixpkgs, because
graalvmPackages.graalvm-oracle_25-eawas merged to Nixpkgsmastervia PR #430508.
Once the JDK packages in Nixpkgs are updated to "General Availability" releases, the EA releases in this repository will be replaced with the GA versions and should also be available upstream. Depending upon interest and contributions from others, we may do the same thing for JDK 26 EA releases.
We expect to add temurin-bin next. graalvmPackages.graalvm-oracle_25-ea and temurin-bin were chosen because they provide binary early-access downloads. Be aware that graalvm-oracle has an unfree license. Unfortunately, binary release downloads of graalvm-ce EA 25 are not available upstream.
| JDK | Package Name | Branch | Upstream PR |
|---|---|---|---|
Oracle GraalVM |
graalvmPackages.graalvm-oracle_25-ea |
merged |
PR #430508 |
The jdk-ea-25 branch will also contain other packages such as build tools like Gradle that have been updated to support JDK 25.
| Package Name | Version | Branch | Upstream PR |
|---|---|---|---|
gradle_9 |
9.1.0-rc-3 |
|
PR #434086 |
To test the GraalVM 25 EA JDK build from this project, you can use:
NIXPKGS_ALLOW_UNFREE=1 nix shell --impure github:nixpkgs-jdk-ea/nixpkgs/jdk-ea-25#graalvmPackages.graalvm-oracle_25-ea- NOTE
-
Because PR #430508 was merged, you can now use a similar command on the upstream Nixpkgs
masterand soon onnixpkgs-unstable.
You’ll need to add use the following override in your nix configuration (e.g. devshell in flake.nix) to run Gradle with the newer JDK:
(gradle_9.override {
java = graalvmPackages.graalvm-oracle_25-ea;
})This will cause Gradle 9.1 to be launched with GraalVM JDK 25.