The test java/awt/BasicStroke/DashOffset.java fails with the following output :

#section:main
----------messages:(5/257)----------
command: main -Dsun.java2d.uiScale=1 DashOffset
reason: User specified action: run main/othervm -Dsun.java2d.uiScale=1 DashOffset
Mode: othervm [/othervm specified]
Additional options from @modules: --add-modules java.desktop
elapsed time (seconds): 0.505
----------configuration:(3/40)----------
Boot Layer
  add modules: java.desktop

----------System.out:(0/0)----------
----------System.err:(18/1139)----------
metalEnabled=1
java.lang.RuntimeException: Unexpected color at 2, 2: ff000000; expected: ff0000ff, ff00ff00
at DashOffset.checkColor(DashOffset.java:226)
at DashOffset.checkColor(DashOffset.java:209)
at DashOffset.checkHorizontalLine(DashOffset.java:139)
at DashOffset.validate(DashOffset.java:127)
at DashOffset.main(DashOffset.java:105)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
at java.base/java.lang.Thread.run(Thread.java:832)

JavaTest Message: Test threw exception: java.lang.RuntimeException: Unexpected color at 2, 2: ff000000; expected: ff0000ff, ff00ff00
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: Unexpected color at 2, 2: ff000000; expected: ff0000ff, ff00ff00

The failure was not observed on OpenJDK builds jdk-14-ea+33_osx-x64, jdk-15-ea+7_osx-x64

The reproducibility: 100%
Steps to reproduce:

$ jtreg -Dsun.java2d.metal=true -testjdk:[path_to_+lanai_home] test/jdk/java/awt/BasicStroke/DashOffset.java

It looks like the following tests also fail because of this issue.

RULE "java/awt/BasicStroke/DashScaleMinWidth.java" Exception java.lang.RuntimeException: Line should be dashed
RULE "java/awt/BasicStroke/DashZeroWidth.java" java.lang.RuntimeException: Line should be visible and dashed

If it is not so a separate ticket needs to be submitted