FULL PRODUCT VERSION :
openjdk version "20"

A DESCRIPTION OF THE PROBLEM :
test/jdk/javax/swing/JFrame/JFrameBackgroundRefreshTest.java fails in macos.
Comparison of two buffered images of white background fails consistently on CI system arrch64 mac machine. Comparison is done by RGB values and it varies from -1118226 to -1118482 at certain x and y position. This behavior is not observed in local machine runs.

----------System.out:(2/50)----------
Got : -1118226 (0xFFEE'EFEE), expected : -1118482 (0xFFEE'EEEE)
x : 4, y : 15
----------System.err:(11/619)----------
java.lang.RuntimeException: Test Failed!
at JFrameBackgroundRefreshTest.main(JFrameBackgroundRefreshTest.java:105)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1575)

JavaTest Message: Test threw exception: java.lang.RuntimeException: Test Failed!
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: Test Failed!

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the attached test.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The test should pass since the white background frame is clearly visible without any distortion.
ACTUAL -
The test fails for BufferedImage comparison.

REPRODUCIBILITY :
This bug can be reproduced always.