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Java Early Access Downloads

Contribute to the development of new versions of the JDK and of new features by using early access builds, providing feedback, and reporting issues.

The early access builds for upcoming releases allow developers and enterprises the opportunity to prepare for the next version of the JDK. For those that want to focus on longer term changes we also offer builds for some of the OpenJDK projects that power the innovation of the Java Platform.

Each of the sites listed below has information on how to provide feedback or report issues on the early access builds.

Oracle also offers developers and enterprises who can commit to regular testing the opportunity to join the Java Compatibility and Performance (Java CAP) Program.

JDK 20

The next feature release version of the JDK scheduled to release on March 2023.
Content and schedule details: OpenJDK 20 Project Page.


Jextract mechanically generates Java bindings from native library headers.
More information: Project Jextract.


Enable easy-to-use, high-throughput, lightweight concurrency and new programming models on the Java platform.
More information: OpenJDK Wiki for Project Loom.


Java-on-Java implementation techniques for HotSpot.
More information: OpenJDK Metropolis Project page.


Improving and enriching connections between the Java Virtual Machine and well-defined but "foreign" (non-Java) APIs, including many interfaces commonly used by C programmers.
More information: OpenJDK Panama Project page.


Align the JVM memory layout behavior with modern hardware models, extend generics to allow abstractions over all types, and enable the compatible evolution of existing libraries to take advantage of these features.
More information: OpenJDK Wiki for Project Valhalla.