[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-6874) java.lang.ClassCastException in JavassistLazyInitializer.getProxy

java.lang.ClassCastException in JavassistLazyInitializer.getProxy ----------------------------------------------------------------- Key: HHH-6874 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6874 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.6.8 Environment: Ubuntu Linux 11.04 x64, JDK 1.6 Reporter: Vladimir Tsichevski The following Exception occurs: Caused by: java.lang.ClassCastException: ClassX_$$_javassist_129 cannot be cast to javassist.util.proxy.ProxyObject at the following line ( ( ProxyObject ) proxy ).setHandler( instance ); where ClassX is a persistent entity with @ManyToOne references of type FetchType.LAZY. The error was not occurred until the FetchType.LAZY modifier was added. The full stack trace: Thread [main] (Suspended (exception ClassCastException)) JavassistLazyInitializer.getProxy(Class, String, Class, Class[], Method, Method, CompositeType, Serializable, SessionImplementor) line: 147 JavassistProxyFactory.getProxy(Serializable, SessionImplementor) line: 71 PojoEntityTuplizer(AbstractEntityTuplizer).createProxy(Serializable, SessionImplementor) line: 631 SingleTableEntityPersister(AbstractEntityPersister).createProxy(Serializable, SessionImplementor) line: 3736 DefaultLoadEventListener.createProxyIfNecessary(LoadEvent, EntityPersister, EntityKey, LoadEventListener$LoadType, PersistenceContext) line: 360 DefaultLoadEventListener.proxyOrLoad(LoadEvent, EntityPersister, EntityKey, LoadEventListener$LoadType) line: 281 DefaultLoadEventListener.onLoad(LoadEvent, LoadEventListener$LoadType) line: 152 SessionImpl.fireLoad(LoadEvent, LoadEventListener$LoadType) line: 1090 SessionImpl.internalLoad(String, Serializable, boolean, boolean) line: 1038 ManyToOneType(EntityType).resolveIdentifier(Serializable, SessionImplementor) line: 630 ManyToOneType(EntityType).resolve(Object, SessionImplementor, Object) line: 438 TwoPhaseLoad.initializeEntity(Object, boolean, SessionImplementor, PreLoadEvent, PostLoadEvent) line: 139 QueryLoader(Loader).initializeEntitiesAndCollections(List, Object, SessionImplementor, boolean) line: 982 QueryLoader(Loader).doQuery(SessionImplementor, QueryParameters, boolean) line: 857 QueryLoader(Loader).doQueryAndInitializeNonLazyCollections(SessionImplementor, QueryParameters, boolean) line: 274 QueryLoader(Loader).doList(SessionImplementor, QueryParameters) line: 2542 QueryLoader(Loader).listIgnoreQueryCache(SessionImplementor, QueryParameters) line: 2276 QueryLoader(Loader).list(SessionImplementor, QueryParameters, Set, Type[]) line: 2271 QueryLoader.list(SessionImplementor, QueryParameters) line: 459 QueryTranslatorImpl.list(SessionImplementor, QueryParameters) line: 365 HQLQueryPlan.performList(QueryParameters, SessionImplementor) line: 196 SessionImpl.list(String, QueryParameters) line: 1268 QueryImpl.list() line: 102 QueryImpl<X>.getResultList() line: 246