RFR: 8361381: GlyphLayout behavior differs on JDK 11+ compared to JDK 8 [v3]

[Volker Simonis]

On Fri, 22 Aug 2025 19:39:18 GMT, Phil Race <prr at openjdk.org> wrote:

> > > I already ran all our automated tests, and I'm not too surprised they pass, since they probably don't cover this as well as they should.
> > 
> > 
> > Thanks!
> > > I think it would be possible and a good idea to add a test. All you need to do is find a font that definitely supports Khmer.
> > 
> > 
> > I can use [`hb-subset`](https://man.archlinux.org/man/extra/harfbuzz-utils/hb-subset.1.en) to create a subset of the [KhmerOS](https://www.cambodia.org/fonts/) open source font (licensed under LGPL 2.1 or later) which will be just enough for the test and check that in along with the test. The subsetted font file will be 28kb. Would that be acceptable
> 
> No. That won't be allowed. You aren't using your own IP. 

Sorry, but I don't understand the problem? We have a bunch of other third-party libraries which are included in OpenJDK along with their corresponding license files. Just do a `find . -name legal -type d -exec echo {} ; -exec ls -la {} ;` in the top level directory to find them all.

We even have the whole [DejaVu font family](https://github.com/openjdk/jdk/blob/master/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/resources/fonts/dejavu.css) in the source tree with its license in [src/jdk.javadoc/share/legal/dejavufonts.md](https://github.com/openjdk/jdk/blob/master/src/jdk.javadoc/share/legal/dejavufonts.md) (added by [JDK-8324774: Add DejaVu web fonts](https://bugs.openjdk.org/browse/JDK-8324774)). I don't see why we wouldn't be able to do something similar for a test font as long as it is available under a permissive open source license like the [GNU Lesser General Public License](https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html)?

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PR Comment: https://git.openjdk.org/jdk/pull/26825#issuecomment-3219251877