Hi all,

I am trying to fetch one map but I am getting the following Exception:


org.hibernate.HibernateException: collection is not associated with any session
[java] at org.hibernate.collection.AbstractPersistentCollection.forceInitialization(AbstractPersistentCollection.java:449)
[java] at org.hibernate.engine.StatefulPersistenceContext.initializeNonLazyCollections(StatefulPersistenceContext.java:784)
[java] at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:229)
[java] at org.hibernate.loader.Loader.loadCollection(Loader.java:1985)
[java] at org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:36)
[java] at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:565)
[java] at org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:60)
[java] at org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1716)
[java] at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:344)
[java] at org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86)
[java] at org.hibernate.collection.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:109)
[java] at org.hibernate.collection.PersistentBag.size(PersistentBag.java:225)
[java] at Main.main(Main.java:56)
[java] Exception in thread "main" org.hibernate.HibernateException: collection is not associated with any session
[java] at org.hibernate.collection.AbstractPersistentCollection.forceInitialization(AbstractPersistentCollection.java:449)
[java] at org.hibernate.engine.StatefulPersistenceContext.initializeNonLazyCollections(StatefulPersistenceContext.java:784)
[java] at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:229)
[java] at org.hibernate.loader.Loader.loadCollection(Loader.java:1985)
[java] at org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:36)
[java] at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:565)
[java] at org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:60)
[java] at org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1716)
[java] at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:344)
[java] at org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86)
[java] at org.hibernate.collection.AbstractPersistentCollection.readSize(AbstractPersistentCollection.java:109)
[java] at org.hibernate.collection.PersistentBag.size(PersistentBag.java:225)



Please provide the solution as soon as possible

Thanks in advance!!

is there any one who know how to fix this bug? I am in the middle of my work Please help if any one knows it
Thanks in advance
Pawan

It would be helpful if you can elaborate your problem,give some context.
Try to have a small test case which highlights the problem you are facing.

I am having one map in my class. For the key column I am using property-ref to associate this foreign key with some other column of my class rather than primary key. the column other than primary key is not unique. now when I am trying to fetch this collection I am getting exception :



org.hibernate.HibernateException: collection is not associated with any session

I have searched on the google , and I have got that This is because we do not have objects with unique ids.

Can you supply the session code from which this exception is being thrown?

I got this error when I use query.list(). I fix it by using query.iterate(); See codes below:
String query = "select D " + " FROM com.choicehotels.jpa.domain.HotDealEntity D " + " INNER JOIN D.hotel H "
+ " LEFT JOIN D.themes TH "
+ " WHERE D.categoryID in (:ids) "
+ " AND (D.startDate <= :date OR D.startDate IS NULL) " + " AND (D.endDate >= :date OR D.endDate IS NULL) "
+ " AND D.hotel.live = 1 "
+ " AND D.live = 1 AND D.language = :language";
String resultQuery = query;
Query q = session.createQuery(resultQuery);

q.setDate("date", new Date());
q.setParameter("language", language);
q.setParameterList("ids", ids);

//doesn't work here; if only one record back, no problem. if many records back, I get hibernate "collection is not associated with any session" exception
//q.setReadOnly(true).list();

q.setReadOnly(true);
for(Iterator i = q.iterate(); i.hasNext();) { //fix here
result.add(i.next());
}