[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-4953) Inconsistent behavior when fetching cached subclass entities from 2L

Inconsistent behavior when fetching cached subclass entities from 2L -------------------------------------------------------------------- Key: HHH-4953 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4953 Project: Hibernate Core Issue Type: Bug Components: caching (L2) Affects Versions: 3.2.5, 3.3.1, 3.5.0.Beta-1, 3.5.0-Beta-2, 3.5.0-Beta-3, 3.5.0-Beta-4, 3.5.0-CR-1, 3.5.0-CR-2 Environment: Hibernate3.5.0CR2,HSQLDB, EHCache as 2L-cache Impl Reporter: Guenther Demetz Attachments: Test2LCache.jar Enabling the hibernate second-level cache is leading to inconsistent behavior when fetching cached subclass entities as opposed to fetching non-cached subclass entities. For more informations, please see https://forum.hibernate.org/viewtopic.php?f=1&t=1002880&p=2425931... Testcase attached. Cause: IMHO the bug consists in the fact, that persister.getRootEntityName() instead to persister.getEntityName() is passed as 3thrd parameter to the constructor of CacheKey in most places where CacheKey is used, for example in DefaultLoadEventListener.java: new CacheKey( event.getEntityId(), persister.getIdentifierType(), persister.getRootEntityName(), source.getEntityMode(), source.getFactory() In this way the real entity name get swallowed and the type-saveness is not guaranteed anymore. Workaround: Subclass2 tofind = null; try { tofind = (Subclass2) em.find(Subclass2.class,"identifier1"); } catch (ClassCastException cc) { // swallow , this is a workaround }