Hibernate @Embeddable class which extends another @Embeddable class, Properties not found for @OneToMany mapping

You can implement inheritance between @Embeddable classes. You just have to annotate the parent class with @MappedSuperclass too.

So, e.g.:

@Embeddable
@MappedSuperclass
public class Parent {
    @Basic
    private String parentProperty;

    // ... getters/setters
}

@Embeddable
public class Child extends Parent {
    @Basic
    private String childProperty;

    // ... getters/setters
}

This way Hibernate (tested with 5.x) will map both parentProperty and childProperty correctly in the Child class.