[lworld] RFR: 8372038: [lworld] Update ExplodedImage to use preview mode correctly [v2]

[David Beaumont]

On Wed, 26 Nov 2025 11:14:44 GMT, David Beaumont <duke at openjdk.org> wrote:

>> src/java.base/share/classes/jdk/internal/jrtfs/ExplodedImage.java line 157:
>> 
>>> 155:                 }
>>> 156:             }
>>> 157:             collectChildNodes(modulesDir.resolve(relPath), list);
>> 
>> This merges the preview files with the normal files; does that result in any duplicates?
>
> Well spotted, thanks. That should be filtering existing preview versions out.
> I fixed the test so it would spot this issue.

After looking back at the code I also did a slight tidy up (no need to store nodes in directories, names will suffice and it makes the collect code a bit more idiomatic.

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PR Review Comment: https://git.openjdk.org/valhalla/pull/1743#discussion_r2564929625