Many JCK tests for java.awt.dnd package fail in module mode with exceptions like: "java.lang.NoClassDefFoundError: java/awt/dnd/peer/DragSourceContextPeer"

api/java_awt/dnd/DragSource/index.html#createDSC: Failed. Class linking error trying to instantiate test class "javasoft.sqe.tests.api.java.awt.dnd.DragSource.createDSCTests": java.lang.NoClassDefFoundError: java/awt/dnd/peer/DragSourceContextPeer
api/java_awt/dnd/DragSourceContext/index.html#Ctor: Failed. Class linking error trying to instantiate test class "javasoft.sqe.tests.api.java.awt.dnd.DragSourceContext.CtorTests": java.lang.NoClassDefFoundError: java/awt/dnd/peer/DragSourceContextPeer
api/java_awt/dnd/DragSourceContext/index.html#dragXXX: Failed. Class linking error trying to instantiate test class "javasoft.sqe.tests.api.java.awt.dnd.DragSourceContext.dragXXXTests": java.lang.NoClassDefFoundError: java/awt/dnd/peer/DragSourceContextPeer
api/java_awt/dnd/DragSourceContext/index.html#other: Failed. Class linking error trying to instantiate test class "javasoft.sqe.tests.api.java.awt.dnd.DragSourceContext.otherTests": java.lang.NoClassDefFoundError: java/awt/dnd/peer/DragSourceContextPeer
api/java_awt/dnd/DragSourceContext/index.html#setGetXXX: Failed. Class linking error trying to instantiate test class "javasoft.sqe.tests.api.java.awt.dnd.DragSourceContext.setGetXXXTests": java.lang.NoClassDefFoundError: java/awt/dnd/peer/DragSourceContextPeer
api/java_awt/dnd/DragSourceDragEvent/index.html#Ctor: Failed. Class linking error trying to instantiate test class "javasoft.sqe.tests.api.java.awt.dnd.DragSourceDragEvent.CtorTests": java.lang.NoClassDefFoundError: java/awt/dnd/peer/DragSourceContextPeer
api/java_awt/dnd/DragSourceDragEvent/index.html#Ctor2: Failed. Class linking error trying to instantiate test class "javasoft.sqe.tests.api.java.awt.dnd.DragSourceDragEvent.Ctor2Tests": java.lang.NoClassDefFoundError: java/awt/dnd/peer/DragSourceContextPeer
api/java_awt/dnd/DragSourceDragEvent/index.html#Other: Failed. Class linking error trying to instantiate test class "javasoft.sqe.tests.api.java.awt.dnd.DragSourceDragEvent.OtherTests": java.lang.NoClassDefFoundError: java/awt/dnd/peer/DragSourceContextPeer
api/java_awt/dnd/DragSourceDropEvent/serial/index.html#Constructor: Failed. Class linking error trying to instantiate test class "javasoft.sqe.tests.api.java.awt.dnd.DragSourceDropEvent.serial.ConstructorTests": java.lang.NoClassDefFoundError: java/awt/dnd/peer/DragSourceContextPeer
api/java_awt/dnd/DragSourceDropEvent/index.html#Ctor: Failed. Class linking error trying to instantiate test class "javasoft.sqe.tests.api.java.awt.dnd.DragSourceDropEvent.CtorTests": java.lang.NoClassDefFoundError: java/awt/dnd/peer/DragSourceContextPeer
api/java_awt/dnd/DragSourceDropEvent/index.html#Ctor2: Failed. Class linking error trying to instantiate test class "javasoft.sqe.tests.api.java.awt.dnd.DragSourceDropEvent.Ctor2Tests": java.lang.NoClassDefFoundError: java/awt/dnd/peer/DragSourceContextPeer
api/java_awt/dnd/DragSourceDropEvent/index.html#Other: Failed. Class linking error trying to instantiate test class "javasoft.sqe.tests.api.java.awt.dnd.DragSourceDropEvent.OtherTests": java.lang.NoClassDefFoundError: java/awt/dnd/peer/DragSourceContextPeer
api/java_awt/dnd/DragSourceEvent/serial/index.html#Constructor: Failed. Class linking error trying to instantiate test class "javasoft.sqe.tests.api.java.awt.dnd.DragSourceEvent.serial.ConstructorTests": java.lang.NoClassDefFoundError: java/awt/dnd/peer/DragSourceContextPeer
api/java_awt/dnd/DragSourceEvent/index.html#ctor: Failed. Class linking error trying to instantiate test class "javasoft.sqe.tests.api.java.awt.dnd.DragSourceEvent.ctorTests": java.lang.NoClassDefFoundError: java/awt/dnd/peer/DragSourceContextPeer
api/java_awt/dnd/DragSourceEvent/index.html#Ctor2Loc: Failed. Class linking error trying to instantiate test class "javasoft.sqe.tests.api.java.awt.dnd.DragSourceEvent.Ctor2LocTests": java.lang.NoClassDefFoundError: java/awt/dnd/peer/DragSourceContextPeer
api/java_awt/dnd/DragSourceEvent/index.html#other: Failed. Class linking error trying to instantiate test class "javasoft.sqe.tests.api.java.awt.dnd.DragSourceEvent.otherTests": java.lang.NoClassDefFoundError: java/awt/dnd/peer/DragSourceContextPeer
api/java_awt/dnd/DropTargetContext/index.html#other: Failed. Class linking error trying to instantiate test class "javasoft.sqe.tests.api.java.awt.dnd.DropTargetContext.otherTests": java.lang.NoClassDefFoundError: java/awt/dnd/peer/DropTargetContextPeer
JCK test fails in module mode:
api/java_awt/Font/descriptions.html#GetPeer

java.lang.NoClassDefFoundError: java/awt/peer/FontPeer
Caused by: java.lang.ClassNotFoundException: java.awt.peer.FontPeer : requested by +tests
at org.openjdk.jigsaw.Loader.loadClass(Loader.java:116)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 16 more