Where Has the Java 11 JRE Gone, and What Can I Use Instead?

Java 11 Runtime Environment: Navigating the Absence of a Downloadable JRE

Unlike previous Java versions, Java 11 does not offer an official JRE for download. This omission has raised concerns among users seeking an executable solution for running Java-based applications.

Oracle's Evolving Java Strategy

Oracle's decision to discontinue JRE downloads stems from its shift away from end-user installations. The company anticipates phasing out Java Applets and Web Start app delivery, eliminating the need for a JRE. Developers and server administrators are expected to use the JDK for application development and server-side management.

Alternative Options for Java 11 JRE

Despite Oracle's abandonment of the JRE, users can still access Java 11 runtime capabilities through various channels:

• Use Java Bundled with Applications: Modern Java applications typically package their own Java implementation, eliminating the need for users to install a separate JRE.
• Oracle Java Development Kit (JDK): While primarily intended for development, the JDK also includes a JRE that can be utilized for running Java applications.

• OpenJDK Releases: Oracle OpenJDK provides open-source implementations of Java, including the Java Runtime Environment (JRE). Various vendors offer distributions based on OpenJDK, such as:

  • Zulu by Azul Systems
  • AdoptOpenJDK
  • Amazon Corretto

Vendor Considerations

When selecting a vendor for your Java 11 JRE, consider factors such as:

• Self-declared OpenJDK compatibility
• Technology differences (HotSpot vs. OpenJ9)
• Vendor support and patch release schedule

Compatibility Concerns

While OpenJDK provides comprehensive compatibility tests, vendors are responsible for self-declaring their releases as compliant. Users should make informed choices based on vendor reputation and adherence to Java specifications.

Embracing Change in the Java Landscape

Oracle's decision has shifted the Java landscape, but users can still leverage Java 11 by adopting alternative solutions. Understanding the new approach and selecting appropriate vendors ensures seamless access to Java runtime capabilities.

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