[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-5102) Instances of a subclass can't be loaded

Instances of a subclass can't be loaded --------------------------------------- Key: HHH-5102 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5102 Project: Hibernate Core Issue Type: Bug Components: annotations, core, entity-manager Affects Versions: 3.5.0-Final Environment: Hibernate 3.5.0-Final, Oracle Reporter: Saša Obradović Assignee: Steve Ebersole Priority: Blocker Fix For: 3.5.x Attachments: acount.jpg, columnnotfoundbug.zip, oracle.sql Time Spent: 1h 37m Remaining Estimate: 0h For a simple class hierarchy (strategy: joined, using @MappedSuperclass) an instance can't be loaded from the database using the superclass as type: {{Account account = entityManager.find(Account.class, 404L);}} This works fine in any Hibernate version prior to the latest and is an obvious bug in 3.5.0-Final. {quote} javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: could not load an entity: [hibernatebug.Account#404] at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1179) at org.hibernate.ejb.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:575) at org.hibernate.ejb.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:529) at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:365) at $Proxy90.find(Unknown Source) at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:240) at $Proxy90.find(Unknown Source) at at.ing.diba.service.architektur.BugTest.getSavingsAccount_aroundBody2(BugTest.java:40) at at.ing.diba.service.architektur.BugTest$AjcClosure3.run(BugTest.java:1) at at.ing.diba.manager.ServiceMethodTracingAspect.traceServiceMethod(ServiceMethodTracingAspect.java:40) at at.ing.diba.service.architektur.BugTest.getSavingsAccount(BugTest.java:40) at org.springframework.test.context.testng.AbstractTestNGSpringContextTests.run(AbstractTestNGSpringContextTests.java:158) Caused by: org.hibernate.exception.GenericJDBCException: could not load an entity: [hibernatebug.Account#404] at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140) at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) at org.hibernate.loader.Loader.loadEntity(Loader.java:1937) at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:86) at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:76) at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3270) at org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:496) at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:477) at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:227) at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:285) at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:152) at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:1080) at org.hibernate.impl.SessionImpl.get(SessionImpl.java:997) at org.hibernate.impl.SessionImpl.get(SessionImpl.java:990) at org.hibernate.ejb.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:554) ... 47 more Caused by: java.sql.SQLException: Ungültiger Spaltenname at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:208) at oracle.jdbc.driver.OracleStatement.getColumnIndex(OracleStatement.java:3296) at oracle.jdbc.driver.OracleResultSetImpl.findColumn(OracleResultSetImpl.java:1914) at oracle.jdbc.driver.OracleResultSet.getBigDecimal(OracleResultSet.java:2042) at org.hibernate.type.BigDecimalType.get(BigDecimalType.java:46) at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:184) at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:173) at org.hibernate.type.AbstractType.hydrate(AbstractType.java:105) at org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:2267) at org.hibernate.loader.Loader.loadFromResultSet(Loader.java:1423) at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:1351) at org.hibernate.loader.Loader.getRow(Loader.java:1251) at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:619) at org.hibernate.loader.Loader.doQuery(Loader.java:745) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:270) at org.hibernate.loader.Loader.loadEntity(Loader.java:1933) ... 59 more {quote} (''Ungültiger Spaltenname'' means: column not found) The generated SQL-Statements are different: 3.5.0-Final: {quote} /* load hibernatebug.Account */ select account0_.ACC_ID as ACC1_30_0_, account0_.ACC_IBAN as ACC2_30_0_, account0_.ACC_VERSION as ACC3_30_0_, case when account0_1_.SAVACC_ACC_ID is not null then 1 when account0_.ACC_ID is not null then 0 end as clazz_0_ from ACCOUNT account0_ left outer join SAVINGS_ACCOUNT account0_1_ on account0_.ACC_ID=account0_1_.SAVACC_ACC_ID where account0_.ACC_ID=? {quote} 3.3.2.GA: {quote} /* load hibernatebug.Account */ select account0_.ACC_ID as ACC1_36_0_, account0_.ACC_IBAN as ACC2_36_0_, account0_.ACC_VERSION as ACC3_36_0_, account0_1_.SAVACC_WITHDRAWALLIMIT as SAVACC1_44_0_, case when account0_1_.SAVACC_ACC_ID is not null then 1 when account0_.ACC_ID is not null then 0 end as clazz_0_ from ACCOUNT account0_ left outer join SAVINGS_ACCOUNT account0_1_ on account0_.ACC_ID=account0_1_.SAVACC_ACC_ID where account0_.ACC_ID=? {quote}