On Thu, 24 Oct 2024 06:40:42 GMT, Jan Lahoda <jlah...@openjdk.org> wrote:

>> This is a current patch for module imports declarations, second preview. At 
>> least the JEP number and preview revision will need to be updated in 
>> `jdk.internal.javac.PreviewFeature.Feature`, but otherwise I believe this is 
>> ready to receive feedback.
>> 
>> The main changes are:
>> - `requires transitive java.base;` is permitted, under the preview flag. 
>> Both javac and the runtime module system are updated to accept this 
>> directive when preview is enabled.
>> - the `java.se` module is using `requires transitive java.base;`, and is 
>> deemed to be participating in preview, so its classfile version is not 
>> tainted. Runtime is updated to access `requires transitive java.base;` in 
>> any `java.*`, considering all of them to be participating in preview. Can be 
>> tighten up to only `java.se` is desired.
>> - the types imported through module imports can be shadowed using on-demand 
>> imports. So, for example, having:
>> 
>> import module java.base;
>> import module java.desktop;
>> ...
>> List l;//ambigous
>> 
>> but:
>> 
>> import module java.base;
>> import module java.desktop;
>> import java.util.*;
>> ...
>> List l;//not ambigous, reference to java.util.List
>
> Jan Lahoda has updated the pull request with a new target base due to a merge 
> or a rebase. The pull request now contains 18 commits:
> 
>  - Updating PreviewFeature metadata
>  - Cleanup.
>  - Merge branch 'master' into JDK-8335989
>  - Merge branch 'master' into JDK-8335989
>  - Reflecting review feedback.
>  - Cleanup.
>  - Cleanup.
>  - Fixing tests
>  - Adding a separate scope for module imports.
>  - Cleanup.
>  - ... and 8 more: https://git.openjdk.org/jdk/compare/964d8d22...94b8bf6d

Changes look good!

-------------

Marked as reviewed by abimpoudis (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/21431#pullrequestreview-2401321203

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