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    • Options.compilerArgs += ['--enable-preview

      • To make this work you can modify the compileJava task and add this flag. Add this to your build.gradle : compileJava { options.compilerArgs += ['--enable-preview'] } This will make sure that your code will compile.
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  2. Jan 16, 2024 · Preview features are disabled by default. To enable them, we must use the enable-preview argument, which enables all preview features at once. The Java compiler, as well as the JVM, must be of the same Java version that includes the preview feature we want to use.

  3. May 17, 2020 · tasks.withType(JavaExec) { jvmArgs += '--enable-preview' } This is described in the corresponding JEP: Developers who wish to use preview language features in their programs must explicitly enable them in the compiler and the runtime system

  4. Jun 26, 2023 · Sometimes you want to play around with those new fancy features of JDK21 (or even newer JDK's) like preview features and maybe some classes from the incubator. So how can you configure your Maven build to support such a play lesson? It's easier than you think. Let's start the configuration.

  5. 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 .

  6. Sep 7, 2021 · javac --enable-preview --source x ClassFile.java for compiling the file with preview features (where “x” is the version of Java you’re compiling), and java --enable-preview ClassFile...

  7. Oct 8, 2019 · This article shows you how to useenable-preview to enable the preview features in Java 13 with maven. To use preview features in your programs, you must explicitly enable them in the compiler and the runtime system.

  8. Jul 11, 2019 · Use --enable-preview (plus --source or --release during compilation) to experiment with Java's preview features