On Thu, 21 Apr 2022 09:14:14 GMT, Toshio Nakamura <tnakam...@openjdk.org> wrote:
> Japanese logical fonts are drawn with wrong size since Java 18. > It's triggered by JEP 400, UTF-8 by Default. `sun.awt.FontConfiguration` (and > `sun.awt.windows.WFontConfiguration`) seems to expect the native encoding > instead of the default encoding. This patch changes to use native encoding. > > Tested: jdk_desktop on Windows, Linux, and macOS Hmm. I am surprised that the glyphs are actually bigger. Did you come to understand the exact mechanism (steps) by which this triggers the wrong size ? Without that explanation it isn't apparent to me we've understood the problem even if this fixes it. And whilst you tested linux & mac it is a shared code change so it is another reason to understand .. And are you sure you can't write a test ? Even something that uses heuristics around the metrics ? ------------- PR: https://git.openjdk.java.net/jdk/pull/8329