| I have bellow classes:
^
@Entity
@Table(name = "TranzitOfficeLayer")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE, include = "all")
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(name = "DTYPE", discriminatorType = DiscriminatorType.STRING)
@DiscriminatorOptions(force = true)
public abstract class OfficeLayer implements Serializable, ir.customs.saloon.OfficeLayer, Cloneable { ... } ^
------------------
^
@Entity
@Table(name = "EstelamAzDarbKhorujLayer")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE, include = "all")
@DiscriminatorValue("EstelamAzDarbKhorujLayer")
public class EstelamAzDarbKhorujLayer extends OfficeLayer implements Serializable { @Basic(optional = true)
@Cache(include = "all", usage = CacheConcurrencyStrategy.READ_WRITE)
@OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL)
@Fetch(FetchMode.SUBSELECT)
@JoinTable(name = "TranzitOfficeLayer_DarbeKhorujOfficeLayers",
joinColumns = @JoinColumn(name = "TranzitOfficeLayer_dbId", referencedColumnName = "dbId"),
inverseJoinColumns = @JoinColumn(name = "darbeKhorujOfficeLayerses_serialNum", referencedColumnName = "serialNum"))
private Collection<DarbeKhorujOfficeLayers> darbeKhorujOfficeLayerses; public Collection<DarbeKhorujOfficeLayers> getDarbeKhorujOfficeLayerses() {
if (darbeKhorujOfficeLayerses == null) { return new LinkedList<>(); } return darbeKhorujOfficeLayerses;
}
}
^
-----------------------
^
@Entity
@Table(name = "EstelamAzDarbKhorujVaredat")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE, include = "all")
@DiscriminatorValue("EstelamAzDarbKhorujVaredat")
public class EstelamAzDarbKhorujVaredat extends EstelamAzDarbKhorujLayer {
}
^
---------------------
^
@Entity
@Table(name = "EstelamAzDarbkhorujSaderat")
@DiscriminatorValue(value = "EstelamAzDarbKhorujSaderat")
public class EstelamAzDarbKhorujSaderat extends EstelamAzDarbKhorujVaredat {
}
^ When I call `getDarbeKhorujOfficeLayerses()` method from `EstelamAzDarbKhorujLayer` class in middle of an open session bellow exception is thrown: ^
Caused by: org.hibernate.WrongClassException: Object [id=194759] was not of the specified subclass [EstelamAzDarbKhorujSaderat] : loaded object was of wrong class class EstelamAzDarbKhorujVaredat
at org.hibernate.loader.plan.exec.process.internal.EntityReferenceInitializerImpl.hydrateEntityState(EntityReferenceInitializerImpl.java:190)
at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.readRow(AbstractRowReader.java:103)
at org.hibernate.loader.plan.exec.internal.EntityLoadQueryDetails$EntityLoaderRowReader.readRow(EntityLoadQueryDetails.java:241)
at org.hibernate.loader.plan.exec.process.internal.ResultSetProcessorImpl.extractResults(ResultSetProcessorImpl.java:122)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:122)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:86)
at org.hibernate.loader.entity.plan.AbstractLoadPlanBasedEntityLoader.load(AbstractLoadPlanBasedEntityLoader.java:167)
at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:4121)
at org.hibernate.event.internal.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:508)
at org.hibernate.event.internal.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:478)
at org.hibernate.event.internal.DefaultLoadEventListener.load(DefaultLoadEventListener.java:219)
at org.hibernate.event.internal.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:278)
at org.hibernate.event.internal.DefaultLoadEventListener.doOnLoad(DefaultLoadEventListener.java:121)
at org.hibernate.event.internal.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:89)
at org.hibernate.internal.SessionImpl.fireLoad(SessionImpl.java:1240)
at org.hibernate.internal.SessionImpl.internalLoad(SessionImpl.java:1123)
at org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:682)
at org.hibernate.type.EntityType.resolve(EntityType.java:464)
at org.hibernate.type.ManyToOneType.resolve(ManyToOneType.java:239)
at org.hibernate.engine.internal.TwoPhaseLoad.doInitializeEntity(TwoPhaseLoad.java:171)
at org.hibernate.engine.internal.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:128)
at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.performTwoPhaseLoad(AbstractRowReader.java:238)
at org.hibernate.loader.plan.exec.process.internal.AbstractRowReader.finishUp(AbstractRowReader.java:209)
at org.hibernate.loader.plan.exec.process.internal.ResultSetProcessorImpl.extractResults(ResultSetProcessorImpl.java:133)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:122)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeLoad(AbstractLoadPlanBasedLoader.java:86)
at org.hibernate.loader.collection.plan.AbstractLoadPlanBasedCollectionInitializer.initialize(AbstractLoadPlanBasedCollectionInitializer.java:87)
at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:688)
at org.hibernate.event.internal.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:75)
at org.hibernate.internal.SessionImpl.initializeCollection(SessionImpl.java:2223)
at org.hibernate.collection.internal.AbstractPersistentCollection$4.doWork(AbstractPersistentCollection.java:565)
at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:247)
at org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:561)
at org.hibernate.collection.internal.AbstractPersistentCollection.read(AbstractPersistentCollection.java:132)
at org.hibernate.collection.internal.PersistentBag.iterator(PersistentBag.java:277)
^ The value of `DTYPE` column in database is `EstelamAzDarbKhorujVaredat` but it seems hibernate tries to identify this object as `EstelamAzDarbKhorujSaderat`. Also when I'm in debug mode and I calculate the real time value of `darbeKhorujOfficeLayerses` field on a breakpoint, that exception does not throw. This code was perfectly worked in hibernate 4 but when I upgrade to hibernate 5.2.17 this occurred.
I've searched many days to find a solution but none of them have worked.
Thank you in advance! |
