HHH-16572 super class checking change

Signed-off-by: Scott Marlow <[email protected]>

hibernate-core/src/main/java/org/hibernate/bytecode/enhance/internal/bytebuddy/EnhancerImpl.java

@@ -413,7 +413,7 @@ private boolean unsupportedEnhancement(TypeDescription managedCtClass) {
 		}
 
 		TypeDescription.Generic superclass = managedCtClass.getSuperClass();
-        while ( superclass != null) {
+        while ( superclass != null && superclass.getSuperClass() != null) {
 			// Check for use of ID/AccessType(PROPERTY) on methods
 			for (MethodDescription.InGenericShape shape : superclass.getDeclaredMethods()) {
 				AnnotationDescription.Loadable<Access> access = shape.getDeclaredAnnotations().ofType(Access.class);