检查类是否派生自泛型类

if (obj instanceof MyGenericClass) {
    // obj派生自MyGenericClass
} else {
    // obj不派生自MyGenericClass
}

Class<?> myClass = MyClass.class;
Type genericSuperclass = myClass.getGenericSuperclass();
if (genericSuperclass instanceof ParameterizedType) {
    ParameterizedType parameterizedType = (ParameterizedType) genericSuperclass;
    Type rawType = parameterizedType.getRawType();
    if (rawType instanceof Class && ((Class<?>) rawType).isAssignableFrom(MyGenericClass.class)) {
        // MyClass派生自MyGenericClass
    } else {
        // MyClass不派生自MyGenericClass
    }
} else {
    // MyClass不是泛型类
}