I have a one-to-one relationship and I keep on getting a ClassCastException whenever the relation gets loaded.

Anybody has any idea why after looking at the info below

Thanks in advance

Hibernate version:
2.18


Mapping documents:
<?xml version="1.0"?>

<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 2.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">
<hibernate-mapping>
<class
name="com.uaig.migration.history.as400.vo.Unit"
table="UQXXUNIT"
dynamic-update="false"
dynamic-insert="false"
>

<composite-id
name="unitPK"
class="com.uaig.migration.history.as400.vo.UnitPK"
>
<key-property
name="referenceNumber"
type="java.lang.Integer"
column="UUREFNO"
/>

<key-property
name="unitNumber"
type="java.lang.Integer"
column="UUNITNO"
/>
</composite-id>

<property
name="companyNumber"
type="com.uaig.migration.hibernate.CustomStringTrimType"
column="UUCOMP#"
/>

<property
name="policyPrefix"
type="com.uaig.migration.hibernate.CustomStringTrimType"
column="UUPRFXN"
/>

<property
name="policyNumber"
type="java.lang.Integer"
column="UUPLNBR"
/>

<property
name="unitType"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUNITTY"
length="2"
/>

<property
name="unitGroup"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUNITGR"
length="2"
/>

<property
name="vinId"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUVINID"
length="25"
/>

<property
name="unitYear"
type="java.lang.Integer"
update="true"
insert="true"
column="UUYEAR"
length="4"
/>

<property
name="unitMake"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUMAKE"
length="4"
/>

<property
name="unitModel"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUMODL"
length="10"
/>

<property
name="description"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUDESC"
length="30"
/>

<property
name="garageZipCode"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUZIPC"
length="9"
/>

<property
name="countyName"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUCNTY"
length="20"
/>

<property
name="cityName"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUCITY"
length="20"
/>

<property
name="countyCode"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUCNTCD"
length="5"
/>

<property
name="unitStatus"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUSTUS"
length="1"
/>

<property
name="unitActivity"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUACTY"
length="1"
/>

<property
name="mileToWork"
type="java.lang.Integer"
update="true"
insert="true"
column="UUMILE"
length="3"
/>

<property
name="deleteDate"
type="java.util.Date"
update="true"
insert="true"
column="UUDELDT"
length="7"
/>

<property
name="addDate"
type="java.util.Date"
update="true"
insert="true"
column="UUADDDT"
length="7"
/>

<property
name="ratedClass"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UURCLS"
length="6"
/>

<property
name="odometerReading"
type="java.lang.Integer"
update="true"
insert="true"
column="UUODOM"
length="7"
/>

<property
name="ratedSymbol"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UURSYMB"
length="2"
/>

<property
name="useCode"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUPUSEC"
length="2"
/>

<property
name="territory"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUTERR"
length="3"
/>

<property
name="passiveRest"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUPSRT"
length="2"
/>

<property
name="antiTheft"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUANTF"
length="2"
/>

<property
name="antiLock"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUANTLK"
length="2"
/>

<property
name="multiCar"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUMULTC"
length="1"
/>

<property
name="transferDiscount"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUTRNFD"
length="1"
/>

<property
name="ratedPDriver"
type="java.lang.Integer"
update="true"
insert="true"
column="UURTDRV"
length="3"
/>

<property
name="replacementCost"
type="java.lang.Integer"
update="true"
insert="true"
column="UURPLCT"
length="7"
/>

<property
name="customEquipment"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUCUSTE"
length="2"
/>

<property
name="highSymbolSurch"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUHGSYM"
length="2"
/>

<property
name="goodSafeDriver"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUSNRDR"
length="1"
/>

<property
name="unitChange"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUNITCH"
length="1"
/>

<property
name="vinChange"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UUVINCH"
length="1"
/>


<one-to-one name="leanHolder"
class="com.uaig.migration.history.as400.vo.LeanHolderInfo"
cascade="save-update"/>
</class>
</hibernate-mapping>

<?xml version="1.0"?>

<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 2.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping>
<class
name="com.uaig.migration.history.as400.vo.LeanHolderInfo"
table="UQXXADLX"
dynamic-update="false"
dynamic-insert="false"
>

<composite-id
name="leanHolderPk"
class="com.uaig.migration.history.as400.vo.LeanHolderPK"
>
<key-property
name="referenceNumber"
type="java.lang.Integer"
column="UAREFNO"
/>
<key-property
name="unitNumber"
type="java.lang.Integer"
column="UAUNTNO"
/>
</composite-id>

<property
name="addInterestCode"
type="java.lang.Integer"
column="UAAICOD"
/>

<property
name="companyNumber"
type="com.uaig.migration.hibernate.CustomStringTrimType"
column="UACOMP#"
length="2"
/>

<property
name="policyPrefix"
type="com.uaig.migration.hibernate.CustomStringTrimType"
column="UAPRFXN"
length="4"
/>

<property
name="policyNumber"
type="java.lang.Integer"
column="UAPLNBR"
length="9"
/>

<property
name="ketFldFromWeb"
type="java.lang.Integer"
update="true"
insert="true"
column="UAKEYFL"
length="9"
/>

<property
name="addInterestTy"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UAADNTT"
length="1"
/>

<property
name="loanNumber"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UALOANN"
length="20"
/>

<property
name="addDate"
type="java.util.Date"
update="true"
insert="true"
column="UAADDDT"
length="7"
/>

<property
name="delDate"
type="java.util.Date"
update="true"
insert="true"
column="UADELDT"
length="7"
/>

<property
name="addIntName"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UAINAME"
length="30"
/>

<property
name="addIntAddress1"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UAIADD1"
length="30"
/>

<property
name="addIntAddress2"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UAIADD2"
length="30"
/>

<property
name="addIntCity"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UAICITY"
length="20"
/>

<property
name="addIntState"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UAISTAT"
length="2"
/>

<property
name="addIntZipCode"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UAIZIPC"
length="2"
/>

<property
name="addIntPhone"
type="java.lang.Integer"
update="true"
insert="true"
column="UAIPHN#"
length="10"
/>

<property
name="addIntFax"
type="java.lang.Integer"
update="true"
insert="true"
column="UAIFAX#"
length="10"
/>

<property
name="addIntChange"
type="com.uaig.migration.hibernate.CustomStringTrimType"
update="true"
insert="true"
column="UAADLCH"
length="1"
/>

<one-to-one name="unit"
class="com.uaig.migration.history.as400.vo.Unit"
constrained="true">
</one-to-one>

</class>

</hibernate-mapping>

Code between sessionFactory.openSession() and session.close():
UnitPK pk = new UnitPK();
pk.setReferenceNumber(new Integer(600100));
pk.setUnitNumber(new Integer(1));
Query qq = as400Session.createQuery("select unit from Unit unit where unit.unitPK.referenceNumber = 600100");
Unit un = (Unit)qq.list().get(0);

Full stack trace of any exception that occurs:
ERROR [main] (BaseMigration.java:50) - Handling Exception...Please consult stacktrace:
net.sf.hibernate.PropertyAccessException: exception getting property value with CGLIB (set hibernate.cglib.use_reflection_optimizer=false for more info) getter of com.uaig.migration.history.as400.vo.LeanHolderPK.?
at net.sf.hibernate.type.ComponentType.getPropertyValues(ComponentType.java:192)
at net.sf.hibernate.type.ComponentType.nullSafeGetValues(ComponentType.java:164)
at net.sf.hibernate.type.ComponentType.nullSafeSet(ComponentType.java:151)
at net.sf.hibernate.loader.Loader.bindPositionalParameters(Loader.java:753)
at net.sf.hibernate.loader.Loader.prepareQueryStatement(Loader.java:793)
at net.sf.hibernate.loader.Loader.doQuery(Loader.java:271)
at net.sf.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:138)
at net.sf.hibernate.loader.Loader.loadEntity(Loader.java:947)
at net.sf.hibernate.loader.Loader.loadEntity(Loader.java:966)
at net.sf.hibernate.loader.EntityLoader.load(EntityLoader.java:59)
at net.sf.hibernate.loader.EntityLoader.load(EntityLoader.java:51)
at net.sf.hibernate.persister.EntityPersister.load(EntityPersister.java:413)
at net.sf.hibernate.impl.SessionImpl.doLoad(SessionImpl.java:2131)
at net.sf.hibernate.impl.SessionImpl.doLoadByClass(SessionImpl.java:2001)
at net.sf.hibernate.impl.SessionImpl.internalLoadOneToOne(SessionImpl.java:1955)
at net.sf.hibernate.type.OneToOneType.resolveIdentifier(OneToOneType.java:72)
at net.sf.hibernate.type.EntityType.resolveIdentifier(EntityType.java:208)
at net.sf.hibernate.impl.SessionImpl.initializeEntity(SessionImpl.java:2219)
at net.sf.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:319)
at net.sf.hibernate.loader.Loader.doQuery(Loader.java:309)
at net.sf.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:138)
at net.sf.hibernate.loader.Loader.doList(Loader.java:1064)
at net.sf.hibernate.loader.Loader.list(Loader.java:1054)
at net.sf.hibernate.hql.QueryTranslator.list(QueryTranslator.java:854)
at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1554)
at net.sf.hibernate.impl.QueryImpl.list(QueryImpl.java:49)
at com.uaig.migration.dao.BaseDAO.findSavePoliciesForHistoryInitialImport(BaseDAO.java:280)
at com.uaig.migration.core.EndorsementHistoryMigration.run(EndorsementHistoryMigration.java:27)
at com.uaig.migration.core.EndorsementHistoryMigration.main(EndorsementHistoryMigration.java:17)
Caused by: java.lang.ClassCastException
at com.uaig.migration.history.as400.vo.LeanHolderPK$$BulkBeanByCGLIB$$c859a9f2.getPropertyValues(<generated>)
at net.sf.cglib.beans.BulkBean.getPropertyValues(BulkBean.java:48)
at net.sf.hibernate.type.ComponentType.getPropertyValues(ComponentType.java:189)
... 28 more

Name and version of the database you are using:
DB2/AS400

The generated SQL (show_sql=true):
Look at stacktrace above

Debug level Hibernate log excerpt:
Look at stacktrace above

Try using the same PK class for both classes.

juan110470, did you ever fix your problem ...I am having the same issue and would appreciate any help

- xc

I never quite fixed the problem. A colleague of mine was working on practically the same set of mapping files but for a different application and what I wound up doing is using his and the problem got solved. The strange part is that his mapping files and mine were identical. I am sure somewhere there must have been something that I missed.

I am sorry I can't help you any further than this.

Good luck

do as the exception says and find out what property does not have the right type.

I am getting same exception...I am not able to enable the
use hibernate.cglib.use_reflection_optimizer as we are using mbeans in jboss as given below. How to use this hibernate property in jboss? I tried using ReflectionOptimizationEnabled as per jboss admin guide. But it says attribute not found. I am using jboss 3.0

<server>
<mbean code="net.sf.hibernate.jmx.HibernateService"
name="jboss.jca:service=TAPHibernateFactory,
name=TAPHibernateFactory">
<depends>jboss.jca:service=RARDeployer</depends>
<depends>jboss.jca:service=LocalTxCM,name=TeradataDS</depends>
<!-- Make it deploy ONLY after DataSource had been started -->

<attribute name="JndiName">java:/TAP/HibernateFactory/TeradataDS</attribute>
<attribute name="Datasource">java:/TeradataDS</attribute>
<attribute name="Dialect">net.sf.hibernate.dialect.TeradataDialect</attribute>
<attribute name="TransactionStrategy">net.sf.hibernate.transaction.JTATransactionFactory</attribute>
<attribute name="TransactionManagerLookupStrategy">net.sf.hibernate.transaction.JBossTransactionManagerLookup</attribute>
<attribute name="UseOuterJoin">false</attribute>
<attribute name="ShowSql">false</attribute>
<attribute name="UserTransactionName">java:/UserTransaction</attribute>
<attribute name="CacheProvider">net.sf.hibernate.cache.TreeCacheProvider</attribute>
<!-- Mapping files -->