RFR: 8353230: Emoji rendering regression after JDK-8208377

[Harshitha Onkar]

On Wed, 28 May 2025 20:25:23 GMT, Daniel Gredler <dgredler at openjdk.org> wrote:

>>> @prrace Please don't approve yet. I was able to fix the code conflicts caused by PR #23665, but it looks like the logic does not layer nicely as there is now a test failure on macOS after the merge. I'm having a look and will let you know what I find.
>> 
>> And indeed the tests just finished and a test (not the new one, a previous one : IgnoredWhitespaceTest.java) failed on macOS x64 and ARM ..
>> 
>> java.lang.RuntimeException: for text '\t\t\t\t\tXXXXX' with font java.awt.Font[family=Dialog,name=Dialog,style=plain,size=40]: java.awt.Rectangle[x=300,y=271,width=123,height=28] != java.awt.Rectangle[x=365,y=271,width=123,height=28]
>> 	at IgnoredWhitespaceTest.assertEqual(IgnoredWhitespaceTest.java:127)
>> 	at IgnoredWhitespaceTest.test(IgnoredWhitespaceTest.java:103)
>> 	at IgnoredWhitespaceTest.test(IgnoredWhitespaceTest.java:69)
>> 	at IgnoredWhitespaceTest.main(IgnoredWhitespaceTest.java:49)
>> 	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
>> 	at java.base/java.lang.reflect.Method.invoke(Method.java:565)
>> 	at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
>> 	at java.base/java.lang.Thread.run(Thread.java:1447)
>> 
>> JavaTest Message: Test threw exception: java.lang.RuntimeException: for text '\t\t\t\t\tXXXXX' with font java.awt.Font[family=Dialog,name=Dialog,style=plain,size=40]: java.awt.Rectangle[x=300,y=271,width=123,height=28] != java.awt.Rectangle[x=365,y=271,width=123,height=28]
>> JavaTest Message: shutting down test
>
> @prrace This is ready for review again. I've updated the code to combine nicely with the recent whitespace fixes. The `test/jdk/java/awt/font`, `test/jdk/java/awt/print` and `test/jdk/java/awt/Graphics2D/DrawString` tests all pass for me locally on Windows, Linux and macOS.
> 
> Once these changes are integrated it should be relatively simple to address JDK-8356803 ("Test TextLayout/TestControls fails on windows & linux: line and paragraph separator show non-zero advance") and JDK-8356812 ("Create an automated version of TextLayout/TestControls").

@gredler In the process of reviewing this PR.

Just a headsup, JDK 25 RDP1 is next week (https://openjdk.org/projects/jdk/25/) in case you are planning to get the following fixes into 25:
[JDK-8356803](https://bugs.openjdk.org/browse/JDK-8356803) - Test TextLayout/TestControls fails on windows & linux: line and paragraph separator show non-zero advance
[JDK-8356812](https://bugs.openjdk.org/browse/JDK-8356812) - Create an automated version of TextLayout/TestControls

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

PR Comment: https://git.openjdk.org/jdk/pull/24412#issuecomment-2922880879