Testsuite name: Regression
Test Name : java/awt/Mouse/MouseEnterExitTest.java
Product(s) tested: jdk1.8.0_461b10
OS/architecture: Ubuntu 25.04 (x11/ wayland)
Fails on Both x11 and wayland environments.

Reproducible: Always
Is it a Regression: No. Failure seen while doing OS baselining testing.
Is it reproducible on other trains:
           Failed with jdk8u461b10 / jdk8u471b01
           Passed with jdk-11.0.28+11
           Passed with jdk-17.0.17+1
           Passed with jdk-21.0.8+11
           Passed with jdk-26+3

jpgansible@ursqe-ubuntu2504-01:~/client$ ./jdk-11.0.28+11/bin/java MouseEnterExitTest
java.awt.Insets[top=37,left=0,bottom=0,right=0]

jpgansible@ursqe-ubuntu2504-01:~/client$ ./jdk-17.0.17+1/bin/java MouseEnterExitTest
java.awt.Insets[top=37,left=0,bottom=0,right=0]

jpgansible@ursqe-ubuntu2504-01:~/client$ ./jdk1.8.0_461b10/bin/java MouseEnterExitTest
java.awt.Insets[top=25,left=5,bottom=5,right=5]
Exception in thread "main" java.lang.RuntimeException: Initial Background color not matching
at MouseEnterExitTest.main(MouseEnterExitTest.java:131)

The Frame insets differ and mouse enters at a different coordinate in case of 8u .