The new test java/awt/font/JNICheck/FreeTypeScalerJNICheck.java introduced with https://bugs.openjdk.java.net/browse/JDK-8269223 adds -Xcheck:jni , and shows on Windows server 2019 the following JNI warning , so the test fails on this Windows version.

:stdErr:
Thu Oct 28 01:27:10 CEST 2021
stdout: [WARNING in native method: JNI call made without checking exceptions when required to from CallStaticVoidMethodV
               at sun.awt.Win32GraphicsEnvironment.initDisplay(java.desktop@18.0.0.1-internal/Native Method)
               at sun.awt.Win32GraphicsEnvironment.initDisplayWrapper(java.desktop@18.0.0.1-internal/Win32GraphicsEnvironment.java:95)
               at sun.awt.Win32GraphicsEnvironment.<clinit>(java.desktop@18.0.0.1-internal/Win32GraphicsEnvironment.java:63)
               at sun.awt.PlatformGraphicsInfo.createGE(java.desktop@18.0.0.1-internal/PlatformGraphicsInfo.java:34)
               at java.awt.GraphicsEnvironment$LocalGE.createGE(java.desktop@18.0.0.1-internal/GraphicsEnvironment.java:93)
               at java.awt.GraphicsEnvironment$LocalGE.<clinit>(java.desktop@18.0.0.1-internal/GraphicsEnvironment.java:84)
               at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(java.desktop@18.0.0.1-internal/GraphicsEnvironment.java:106)
               at FreeTypeScalerJNICheck.runTest(FreeTypeScalerJNICheck.java:53)
               at FreeTypeScalerJNICheck.main(FreeTypeScalerJNICheck.java:44)