I've been looking into JEP 468, but I'm confused about its status as a preview feature. If it's marked as preview, why can't I test it like I can with value objects? Is there a version I can download, or do I have to compile it myself? It feels a bit contradictory, as 'preview' suggests functionality, but it seems like there's nothing to try out just yet. Can someone clarify this for me? Thanks a bunch!
4 Answers
From what I understand, the preview tag means that once the feature is fully developed and integrated, it will be available for use with a flag like --enable-preview. As of now, it isn't targeted for a specific Java version, and it might even just be a proposal without any code implemented yet.
JEPs are proposals for significant changes to the JDK. They often discuss features as if they are already implemented, but the important detail is their status. For a feature to be usable, the status needs to be 'Integrated' or further along in the workflow. Just remember that 'Preview' refers to the feature, not the JEP itself.
This preview feature hasn't actually been developed yet, so there's nothing to test right now.
The JEP is in preview status, but that just means it's a candidate for future JDK versions. Essentially, it's a preview of a feature that could be added later. Currently, it lacks a specific version for testing, so you might have to compile it yourself to check it out.
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