[hibernate-issues] [Hibernate-JIRA] Issue Comment Edited: (HHH-6236) NullPointerException in org.hibernate.type.EntityType.isEqual

NullPointerException in org.hibernate.type.EntityType.isEqual ------------------------------------------------------------- Key: HHH-6236 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6236 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.6.4 Environment: Hibernate 3.6.4, MySQL 5.5.8, Linux x64 Reporter: Thomas Stinner The following error does not occur every time, but in 75% of all program starts. The error either occurs on one of the first queries to the database, or does not occur at all. We solve this issue by simply restarting the application and trying again. It also happens with other applications, not only this one. INFO | jvm 1 | 2011/05/19 10:43:19 | Caused by: java.lang.NullPointerException INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.type.EntityType.isEqual(EntityType.java:344) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.type.ComponentType.isEqual(ComponentType.java:176) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.engine.CollectionKey.equals(CollectionKey.java:71) INFO | jvm 1 | 2011/05/19 10:43:19 | at java.util.HashMap.put(HashMap.java:376) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.engine.StatefulPersistenceContext.addCollection(StatefulPersistenceContext.java:820) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.engine.StatefulPersistenceContext.addUninitializedCollection(StatefulPersistenceContext.java:789) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.type.CollectionType.getCollection(CollectionType.java:643) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.type.CollectionType.resolveKey(CollectionType.java:431) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.type.CollectionType.resolve(CollectionType.java:425) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:139) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:982) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.loader.Loader.doQuery(Loader.java:857) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.loader.Loader.loadEntity(Loader.java:2037) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:86) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:76) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3293) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:496) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:477) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:227) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:285) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:152) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:1090) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.impl.SessionImpl.internalLoad(SessionImpl.java:1038) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:630) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.type.EntityType.resolve(EntityType.java:438) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:139) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:982) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.loader.Loader.doQuery(Loader.java:857) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.loader.Loader.doList(Loader.java:2533) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2276) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.loader.Loader.list(Loader.java:2271) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:452) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:363) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:196) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1268) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.impl.QueryImpl.list(QueryImpl.java:102) INFO | jvm 1 | 2011/05/19 10:43:19 | at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:246) INFO | jvm 1 | 2011/05/19 10:43:19 | at de.schuechen.tms.abrechnung.RechnungenErzeugen.ausRgVorschlag(RechnungenErzeugen.java:106) INFO | jvm 1 | 2011/05/19 10:43:19 | at de.schuechen.tms.abrechnung.RechnungenReporter.createJasperPrint(RechnungenReporter.java:136) INFO | jvm 1 | 2011/05/19 10:43:19 | ... 5 more STATUS | wrapper | 2011/05/19 10:43:22 | TERM trapped. Shutting down.