Java 14 Preview features

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Hello,

How do I enable the following preview features using mac open jdk Java 14?

I'm using version:

 

IntelliJ IDEA 2021.2.2 (Ultimate Edition)
Build #IU-212.5284.40, built on September 14, 2021

Runtime version: 11.0.12+7-b1504.28 x86_64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
macOS 11.6
GC: G1 Young Generation, G1 Old Generation


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These features are no longer in preview as there is a final JDK version available with these features, please check these links:

https://www.jetbrains.com/help/idea/project-settings-and-structure.html#preview-policy
https://youtrack.jetbrains.com/issue/IDEA-245212
https://youtrack.jetbrains.com/issue/IDEA-277405

See also https://www.jetbrains.com/help/idea/supported-java-versions.html. If you really need to use the preview features of the older Java releases, you will have to use the older IDE version for that: https://www.jetbrains.com/idea/download/previous.html.

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