[lworld] RFR: 8374810: [lworld] Generate COH archives

[Coleen Phillimore]

On Thu, 8 Jan 2026 16:51:20 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> This change both enables the UseCompactObjectHeaders archives for valhalla and fixes the test that looks for the archives.  Testing with tier1-3 with --enable-preview and -XX:+UseCompactObjectHeaders.

Thank you Fred.  I think we might have to go through and rename the _valhalla in the archive to something else.   I'm not sure how many files are affected so I wouldn't do that here.  And we should see if everyone agrees on a new name.  The _preview suffix might be good.

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

PR Comment: https://git.openjdk.org/valhalla/pull/1871#issuecomment-3726326644