[FIXED] Cannot declare List property in the JPA @Entity class. It says 'Basic' attribute type should not be a container

Issue

I have a JPA @Entity class Place, with some properties holding some information about a place, such as name of place, description, and URLs of some images.

For the URLs of images, I declare a List<Link> in my entity.

src="https://i.stack.imgur.com/BWkDD.png" alt="enter image description here" />

However, I am getting this error:

Basic attribute type should not be a container.

I tried to remove @Basic, but the error message is still there. Why does it shows this error?

Solution

The error seems not have impact on GAE since I can run the app and store data into storage. I guess it's a bug in IntelliJ IDEA and you can simply ignore it.

Answered By - Hesam
Answer Checked By - Marie Seifert (JavaFixing Admin)