### Question:
ReflectUtils { public static boolean isSubType(Class<?> clazz, Class<?> target) { return target.isAssignableFrom(clazz); }  static Set<Class<?>> getClasses(String packageName); static String getSignature(Method method); static Type[] getActualType(Type type); static void makeAccessible(AccessibleObject accessibleObject); static boolean isInjectableValueType(Class<?> clazz); static boolean isPrimitiveOrWrapper(Class<?> clazz); static boolean isCollection(Class<?> clazz); static boolean isMap(Class<?> clazz); static boolean isSubType(Class<?> clazz, Class<?> target); static Object invokeMethod(Object object, Method method, Object... args); static void setValue(Object object, Field field, Object value); static boolean isJavaClass(Class<?> clz); static boolean isReturnVoid(Method method); static Method getMethodByAnnotation(Class<?> beanClass, Class<? extends Annotation> annotation);  }### Answer:
@Test public void isSubType() { assertTrue(ReflectUtils.isSubType(DefaultBeanFactory.class, BeanFactory.class)); }