Value types in JPA

[Value Objects](https://openjdk.org/jeps/401) have been integrated into Java 28 in preview mode. Is there any bearing on JPA with regard to value objects that needs to be documented or implemented in the future? A lot of the Basic types will be [converted](https://openjdk.org/jeps/401#Programming-with-value-objects) to value objects.

For example, if I declare
```java
value class Pages {

private long pages; // implicitly final
}
```
will there be any difference with respect to the same class without the `value` declaration?

It will be some time before value types leave preview, but it's good to have some foresight for JPA/JakartaEE because their releases are less frequent than Java's.

Start by reading JEP 401 and its section on programming with value objects, then compare its value-class constraints with the JPA treatment of basic types and embeddable classes. Use the Pages example to identify whether persistence behavior or specification guidance would change; done requires a decided, documented compatibility position or a clearly scoped implementation plan.

Written by the indexing model from the issue text.