tests:

java/awt/EmbeddedFrame/DisplayChangedTest/DisplayChangedTest.java

java.lang.reflect.InaccessibleObjectException: Unable to make field protected volatile long sun.awt.windows.WComponentPeer.hwnd accessible: module java.desktop does not "opens sun.awt.windows" to unnamed module @7c0d955b
        at java.base/jdk.internal.reflect.Reflection.throwInaccessibleObjectException(Reflection.java:427)
        at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:201)
        at java.base/java.lang.reflect.Field.checkCanSetAccessible(Field.java:171)
        at java.base/java.lang.reflect.Field.setAccessible(Field.java:165)
...


java/awt/EmbeddedFrame/EmbeddedFrameGrabTest/EmbeddedFrameGrabTest.java

java.lang.reflect.InaccessibleObjectException: Unable to make field protected volatile long sun.awt.windows.WComponentPeer.hwnd accessible: module java.desktop does not "opens sun.awt.windows" to unnamed module @3e8fb28
        at java.base/jdk.internal.reflect.Reflection.throwInaccessibleObjectException(Reflection.java:427)
        at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:201)
        at java.base/java.lang.reflect.Field.checkCanSetAccessible(Field.java:171)
        at java.base/java.lang.reflect.Field.setAccessible(Field.java:165)
...


javax/swing/JFileChooser/6741890/bug6741890.java

java.lang.reflect.InaccessibleObjectException: Unable to make field private volatile java.lang.Boolean sun.awt.shell.Win32ShellFolder2.cachedIsLink accessible: module java.desktop does not "opens sun.awt.shell" to unnamed module @6aa09713
        at java.base/jdk.internal.reflect.Reflection.throwInaccessibleObjectException(Reflection.java:427)
        at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:201)
        at java.base/java.lang.reflect.Field.checkCanSetAccessible(Field.java:171)
        at java.base/java.lang.reflect.Field.setAccessible(Field.java:165)
...

Windows 10, client nightly b150

didn't check if some "--add-opens" helps here, so please lower the priority if this one is purely test issue