[xwiki-users] Hibernate issue when loading objects in parallel

Hello, Seems I get some issue in the following use-case with hibernate: - have a page that displays some fields from several objects (of same class), acting like an aggregator - for each object, some fields are displayed - for each object, an <iframe> is added, targeting another page that loads another field from that same object Maybe for you to visualize better, it's a Topic view (of mail archive), showing all Mails from a thread, and so displaying common header fields (from to subject ...), the <iframe> being in charge of displaying the HTML body of each mail. It means that for example, if I display 20 mails from this page, there will be 20 objects accessed from "main" (request) thread, and up to 20 threads accessing each one of these objects. What happens is that the following exception occurs in a random (but pretty frequent) fashion: Wrapped Exception: Error number 3212 in 3: Exception while loading property cc of object MailArchiveItems.Mxwiki-devsVOTERetireoldqueryp_16 Wrapped Exception: Session is closed!