On Mon, 12 May 2025 19:34:16 GMT, Alexey Ivanov <aiva...@openjdk.org> wrote:
>>> There seems to be similar issue on Windows and Linux where the hexcode - >>> 0x2028 (line separator) and 0x2029 (paragraph separator) are shown with a >>> non-zero advance - `/java/awt/font/TextLayout/TestControls.java` >> >> Are these characters new? I can't remember there were any characters with >> non-zero width on Linux and Windows. I ran this test (or its previous >> version) on each HarfBuzz update. >> >> No, they were these characters are part of the existing test. >> >> I cannot reproduce this problem with 21.0.6. Nor is it reproducible with >> 21.0.7, the latest GA version of Java 21. >> >> Yet I the same picture as you attached on Windows on a recent build of >> mainline. >> >> If that's the case, it seems to be regression rather than an existing issue. > > I also submitted [JDK-8356812](https://bugs.openjdk.org/browse/JDK-8356812): > *Create an automated version of TextLayout/TestControls*. > > Verifying that the widths of all control characters is zero can be automated; > the manual version can exist along-side to ensure all the characters are > rendered as expected. @aivanov-jdk Thanks for testing on older versions of JDK. I'm checking if this issue was caused by harfbuzz upgrade or recent code changes to JDK. ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/23665#discussion_r2085328760
