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      • No, that's not possible. Only the preview features of the highest supported Java version are supported. Which means, Eclipse 2020-12 (4.18) supports preview features of Java 15 only, not of Java 14.
      stackoverflow.com/questions/65810167/how-to-enable-preview-features-for-java-14-in-eclipse-2020-12

      How to enable preview features for Java 14 in Eclipse 2020-12?

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  3. www.baeldung.com › java-preview-featuresJava Preview Features - Baeldung

    Jan 16, 2024 · In this article, we’ve introduced preview features in Java, why we have them, and how they differ from experimental features. Then, using the text blocks preview feature in JDK 13, we explained step by step how to use preview features from Eclipse, IntelliJ, Maven, and the command line.

  4. dev.java › learn › new-featuresUsing the Preview Features Available in the JDK - Dev.java

    Preview features are specific to a given Java feature release and require the use of special flags at compile time as well as at runtime. The example below shows how to use preview features based on a feature that was in preview in Java 16 .

  5. blogs.oracle.com › javamagazine › postThe role of preview features in Java 14, Java 15, Java 16 ...

    Jun 3, 2020 · To avoid any costly design flaws for new features in the Java platform, in the JDK, or in HotSpot, Oracle uses multiple mechanisms—preview features, experimental features, and incubator modules—to give developers preliminary access to nonfinal features.

  6. docs.oracle.com › en › java2 Preview Features - Oracle Help Center

    A preview feature is a new feature whose design, specification, and implementation are complete, but which is not permanent, which means that the feature may exist in a different form or not at all in future JDK releases.

  7. openjdk.org › jeps › 12JEP 12: Preview Features - OpenJDK

    Jan 19, 2018 · Preview features are present in all Java compilers and JVM implementations but disabled by default. The JEP outlined design properties that are required of all preview features, and gave rules for how developers enable and use preview features at compile time and run time.

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  8. stackoverflow.com › questions › 52232681java - Compile and execute a JDK preview feature with Maven ...

    Sep 8, 2018 · Since version 3.10.1 of the Maven Compiler Plugin, there is a dedicated parameter for enabling preview features: <enablePreview> Set to true to Enable preview language features of the java compiler. Type: boolean; Since: 3.10.1; Required: No; User Property: maven.compiler.enablePreview; Default: false; Example:

  9. docs.oracle.com › en › java2 Significant Changes in the JDK - docs.oracle.com

    Significant Changes in JDK 23 Release. See JDK 23 Release Notes for additional descriptions of the new features and enhancements, and API specification in JDK 23. The following are some of the updates in Java SE 23 and JDK 23: Language Preview Features.