On Fri, 22 Nov 2024 13:42:32 GMT, Jan Lahoda <jlah...@openjdk.org> wrote:

> There is a new preview language feature, `requires transitive java.base;`. 
> And the `java.se` module is permitted to use the feature, without being 
> marked as preview (i.e. the `java.se` module participates in preview). This 
> is currently implemented by the common "participates in preview" way, by 
> checking that `java.base` is exporting `jdk.internal.javac` package to 
> `java.se`.
> 
> This common way works OK for internal preview feature and API usage, but 
> turns out it may not be appropriate for this feature: the qualified export of 
> the `jdk.internal.javac` package is not a specified API, it is an 
> implementation detail; and the JLS itself specifies that the `java.se` module 
> is participating in preview.
> 
> So this PR proposes to change the way javac handles the `java.se` module: it 
> permits the use of the preview feature based on the module name, instead 
> relying on the internal qualified export.

LGTM, thanks!

I verified this fixes the original issue I was seeing.

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PR Comment: https://git.openjdk.org/jdk/pull/22322#issuecomment-2524711481

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