[lworld] RFR: 8368333: [lworld] Add preview mode to ImageReader and JRT file-system [v9]

[Roger Riggs]

On Fri, 24 Oct 2025 17:05:58 GMT, David Beaumont <duke at openjdk.org> wrote:

>> Java changes for supporting preview mode when preview mode resources (with new location flags) are available.
>> 
>> At the moment, this code will operate on non-preview jimage files (1.0) and act as if no preview resources are available by virtue of the default value for missing attributes and package flags being zero (which matches jimage 1.0).
>> 
>> This should be reviewed on top of https://github.com/openjdk/valhalla/pull/1618
>
> David Beaumont has updated the pull request incrementally with one additional commit since the last revision:
> 
>   feedback changes

test/jdk/jdk/internal/jimage/ImageReaderTest.java line 1:

> 1: /*

It seems odd to only have PreviewMode.DISABLED tests in ImageReaderTest.

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PR Review Comment: https://git.openjdk.org/valhalla/pull/1619#discussion_r2471002319