Mirko Adebahr ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5cf6e16... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiMDJjN2U3OTA4... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16566?atlOrigin=eyJpIjoiMDJjN2... ) HHH-16566 ( https://hibernate.atlassian.net/browse/HHH-16566?atlOrigin=eyJpIjoiMDJjN2... ) java.lang.NullPointerException: Cannot invoke "org.hibernate.loader.plan.exec.process.spi.EntityReferenceInitializer.getEntityReference()" because "entityReferenceInitializer" is null ( https://hibernate.atlassian.net/browse/HHH-16566?atlOrigin=eyJpIjoiMDJjN2... ) Issue Type: Bug Affects Versions: 5.6.15 Assignee: Unassigned Created: 08/May/2023 00:40 AM Environment: Hibernate 5.6.15.Final Spring 5.3.27 (no Spring Boot) Spring Data Priority: Major Reporter: Mirko Adebahr ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5cf6e16... ) We’ve encountered a very unusual exception which seemed to be related to a specific entity. The exception started with the deployment of a specific release and was gone after the following release was deployed. None of the changes in both releases seemed to correlate to the exception and/or the entity. All other functionalities of the application were working as expected, including lots of Hibernate-related logic. We were not able to reproduce this, but looking at AbstractRowReader it seems that the NullPointerException can only occur if it has already been initialized the wrong way with a null value in entityReferenceInitializers. Do you have an idea what has happened here? Stack trace: Caused by: java.lang.NullPointerException: Cannot invoke "org.hibernate.loader.plan.exec.process.spi.EntityReferenceInitializer.getEntityReference()" because "entityReferenceInitializer" is null at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.resolveEntityKey(AbstractRowReader.java:104) at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.resolveEntityKey(AbstractRowReader.java:120) at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.resolveEntityKey(AbstractRowReader.java:108) at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.readRow(AbstractRowReader.java:71) at org.hibernate.loader.plan.exec.internal.EntityLoadQueryDetails$EntityLoaderRowReader.readRow(EntityLoadQueryDetails.java:288) at org.hibernate.loader.plan.exec.process.internal.ResultSetProcessorImpl.extractRows(ResultSetProcessorImpl.java:157) at org.hibernate.loader.plan.exec.process.internal.ResultSetProcessorImpl.extractResults(ResultSetProcessorImpl.java:94) at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:105) at org.hibernate.loader.entity.plan.AbstractLoadPlanBasedEntityLoader.load(AbstractLoadPlanBasedEntityLoader.java:285) at org.hibernate.persister.entity.AbstractEntityPersister.doLoad(AbstractEntityPersister.java:4550) at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:4540) at org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:571) at org.hibernate.event.internal.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:539) at org.hibernate.event.internal.DefaultLoadEventListener.load(DefaultLoadEventListener.java:208) at org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:327) at org.hibernate.event.internal.DefaultLoadEventListener.doOnLoad(DefaultLoadEventListener.java:108) at org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:74) at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:118) at org.hibernate.internal.SessionImpl.fireLoadNoChecks(SessionImpl.java:1231) at org.hibernate.internal.SessionImpl.internalLoad(SessionImpl.java:1096) at org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:706) at org.hibernate.type.EntityType.resolve(EntityType.java:465) at org.hibernate.type.ManyToOneType.resolve(ManyToOneType.java:265) at org.hibernate.type.EntityType.resolve(EntityType.java:458) at org.hibernate.type.ComponentType.resolve(ComponentType.java:695) at org.hibernate.loader.Loader.extractKeysFromResultSet(Loader.java:881) at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:735) at org.hibernate.loader.Loader.getRowsFromResultSet(Loader.java:1047) at org.hibernate.loader.Loader.processResultSet(Loader.java:998) at org.hibernate.loader.Loader.doQuery(Loader.java:967) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:357) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:327) at org.hibernate.loader.Loader.loadEntity(Loader.java:2440) at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:77) at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:66) at org.hibernate.persister.entity.AbstractEntityPersister.loadByUniqueKey(AbstractEntityPersister.java:2486) at org.hibernate.type.EntityType.loadByUniqueKey(EntityType.java:763) at org.hibernate.type.EntityType.resolve(EntityType.java:468) at org.hibernate.engine.internal.TwoPhaseLoad$EntityResolver.lambda$static$0(TwoPhaseLoad.java:576) at org.hibernate.engine.internal.TwoPhaseLoad.initializeEntityEntryLoadedState(TwoPhaseLoad.java:221) at org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:155) at org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:126) at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:1201) at org.hibernate.loader.Loader.processResultSet(Loader.java:1009) at org.hibernate.loader.Loader.doQuery(Loader.java:967) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:357) at org.hibernate.loader.Loader.doList(Loader.java:2868) at org.hibernate.loader.Loader.doList(Loader.java:2850) at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2682) at org.hibernate.loader.Loader.list(Loader.java:2677) at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:540) at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:400) at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:218) at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1459) at org.hibernate.query.internal.AbstractProducedQuery.doList(AbstractProducedQuery.java:1649) at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1617) at org.hibernate.query.Query.getResultList(Query.java:165) at org.hibernate.query.criteria.internal.compile.CriteriaQueryTypeQueryAdapter.getResultList(CriteriaQueryTypeQueryAdapter.java:76) at org.springframework.data.jpa.repository.query.JpaQueryExecution$CollectionExecution.doExecute(JpaQueryExecution.java:128) at org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:90) at org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:156) at org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery.java:144) at org.springframework.data.repository.core.support.RepositoryMethodInvoker.doInvoke(RepositoryMethodInvoker.java:137) at org.springframework.data.repository.core.support.RepositoryMethodInvoker.invoke(RepositoryMethodInvoker.java:121) at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.doInvoke(QueryExecutorMethodInterceptor.java:160) at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.invoke(QueryExecutorMethodInterceptor.java:139) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:81) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123) at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:145) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at datadog.trace.instrumentation.springdata.RepositoryInterceptor.invoke(RepositoryInterceptor.java:43) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:220) at jdk.proxy5/jdk.proxy5.$Proxy323.findAllBy...InAnd...In(Unknown Source) ( https://hibernate.atlassian.net/browse/HHH-16566#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16566#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! 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