I have a one-to-many relationship defined as below

@Cacheable
@Entity
@NamedEntityGraph(
    name = "Parent.Child",
    attributeNodes = {
        @NamedAttributeNode("children"),
    }
)
public class Parent {
    private Set<Child> children;
    // getter - setter
}

Now in my DAL, i'm calling this method

@Override
    public Defect getParentWithChildren(int id) {
        EntityGraph<?> graph = entityManager.getEntityGraph("Parent.Child");
        Map<String, Object> props = new HashMap<>();
        props.put("javax.persistence.fetchgraph", graph);
        return entityManager.find(Parent.class, id, props);
    }

Since i have loaded Parent with Children, i should be able to use children collection outside of the transaction. But i'm getting Lazyinitialization Exception. This happens only when hibernate level 2 cache - ehcache is enabled and entity is getting loaded from the cache instead of the database (i.e. it is already loaded from another transaction and saved in the cache). If i disable it from config, it works as expected. Also if i initialize collection explicitly after find, it works as expected. I'm using Hibernate 5.2.6.Final with JPA 2.1.

Suitable Test Case can be found here: TestCase