I am getting a class cast exception when I try to edit an object in memory, which was pulled from the database. The exception is thrown when I call some of the setter methods in the bean, which was generated from the mapping file. Does anyone have any suggestions in how to troubleshoot this issue? Thanks.

Here is the error:

5_0_, casevo1_.Case_Last_Update_SO_User_Cd as Case_La16_0_, casevo1_.Case_Batch_
Id_Nbr as Case_Ba17_0_ from subject subjectvo0_, GDCS_Case casevo1_ where subjec
tvo0_.Subj_Id_Nbr=? and subjectvo0_.Case_Sequence_Nbr=casevo1_.Case_Sequence_Nbr
(+) and subjectvo0_.Agency_State_Cd=casevo1_.Agency_State_Cd(+)
[java] Jul 7, 2005 9:09:02 AM net.sf.hibernate.proxy.LazyInitializer initia
lizeWrapExceptions
[java] SEVERE: Exception initializing proxy
[java] java.lang.ClassCastException
[java] at net.sf.hibernate.type.IntegerType.set(IntegerType.java:34)
[java] at net.sf.hibernate.type.NullableType.nullSafeSet(NullableType.j
ava:48)
[java] at net.sf.hibernate.type.NullableType.nullSafeSet(NullableType.j
ava:35)
[java] at net.sf.hibernate.loader.Loader.bindPositionalParameters(Loade
r.java:753)
[java] at net.sf.hibernate.loader.Loader.prepareQueryStatement(Loader.j
ava:793)
[java] at net.sf.hibernate.loader.Loader.doQuery(Loader.java:269)
[java] at net.sf.hibernate.loader.Loader.doQueryAndInitializeNonLazyCol
lections(Loader.java:138)
[java] at net.sf.hibernate.loader.Loader.loadEntity(Loader.java:941)
[java] at net.sf.hibernate.loader.Loader.loadEntity(Loader.java:961)
[java] at net.sf.hibernate.loader.EntityLoader.load(EntityLoader.java:5
9)
[java] at net.sf.hibernate.loader.EntityLoader.load(EntityLoader.java:5
1)
[java] at net.sf.hibernate.persister.EntityPersister.load(EntityPersist
er.java:413)
[java] at net.sf.hibernate.impl.SessionImpl.doLoad(SessionImpl.java:213
1)
[java] at net.sf.hibernate.impl.SessionImpl.immediateLoad(SessionImpl.j
ava:1945)
[java] at net.sf.hibernate.proxy.LazyInitializer.initialize(LazyInitial
izer.java:53)
[java] at net.sf.hibernate.proxy.LazyInitializer.initializeWrapExceptio
ns(LazyInitializer.java:60)
[java] at net.sf.hibernate.proxy.LazyInitializer.getImplementation(Lazy
Initializer.java:164)
[java] at net.sf.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLa
zyInitializer.java:108)
[java] at gov.treasury.fincen.bsadirect.gdcs.vo.SubjectVO$$EnhancerByCG
LIB$$7a789eba.setSubjAliasFirstNm(<generated>)
[java] at gov.treasury.fincen.bsadirect.gdcs.tests.CaseDAODriver.main(C
aseDAODriver.java:190)
[java] net.sf.hibernate.LazyInitializationException: Exception initializing
proxy: [gov.treasury.fincen.bsadirect.gdcs.vo.SubjectVO#gov.treasury.fincen.bsa
direct.gdcs.vo.CaseNumberVO@d56b37[caseSequenceNbr=12343,agencyStateCode=NY]]
[java] at net.sf.hibernate.proxy.LazyInitializer.initializeWrapExceptio
ns(LazyInitializer.java:64)
[java] at net.sf.hibernate.proxy.LazyInitializer.getImplementation(Lazy
Initializer.java:164)
[java] at net.sf.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLa
zyInitializer.java:108)
[java] at gov.treasury.fincen.bsadirect.gdcs.vo.SubjectVO$$EnhancerByCG
LIB$$7a789eba.setSubjAliasFirstNm(<generated>)
[java] at gov.treasury.fincen.bsadirect.gdcs.tests.CaseDAODriver.main(C
aseDAODriver.java:190)
[java] Caused by: java.lang.ClassCastException
[java] at net.sf.hibernate.type.IntegerType.set(IntegerType.java:34)
[java] at net.sf.hibernate.type.NullableType.nullSafeSet(NullableType.j
ava:48)
[java] at net.sf.hibernate.type.NullableType.nullSafeSet(NullableType.j
ava:35)
[java] at net.sf.hibernate.loader.Loader.bindPositionalParameters(Loade
r.java:753)
[java] at net.sf.hibernate.loader.Loader.prepareQueryStatement(Loader.j
ava:793)
[java] at net.sf.hibernate.loader.Loader.doQuery(Loader.java:269)
[java] at net.sf.hibernate.loader.Loader.doQueryAndInitializeNonLazyCol
lections(Loader.java:138)
[java] at net.sf.hibernate.loader.Loader.loadEntity(Loader.java:941)
[java] at net.sf.hibernate.loader.Loader.loadEntity(Loader.java:961)
[java] at net.sf.hibernate.loader.EntityLoader.load(EntityLoader.java:5
9)
[java] at net.sf.hibernate.loader.EntityLoader.load(EntityLoader.java:5
1)
[java] at net.sf.hibernate.persister.EntityPersister.load(EntityPersist
er.java:413)
[java] at net.sf.hibernate.impl.SessionImpl.doLoad(SessionImpl.java:213
1)
[java] at net.sf.hibernate.impl.SessionImpl.immediateLoad(SessionImpl.j
ava:1945)
[java] at net.sf.hibernate.proxy.LazyInitializer.initialize(LazyInitial
izer.java:53)
[java] at net.sf.hibernate.proxy.LazyInitializer.initializeWrapExceptio
ns(LazyInitializer.java:60)
[java] ... 4 more
[java] Exception in thread "main"
[java] Java Result: 1

Double-check the type in your mapping file with your class property, make sure they're compatible. Same thing with your queries.

This is a weird issue because it happens with any setter method in the class. I am just using strings, which map as varchar in the oracle database.

I am wondering if the issue has to do with the fact I am using a composite key on a different class as a foreign key in the class I am trying to update.

I verified all the types and they are correct.

I am calling the following method:
subjectVO = subjectDAO.getSubjectByCaseNumber(caseNumberVO);
this don't throw an error.

The error is thrown when I call the following on the subjectVO:
subjectVO.setSubjectCityNm("some new string");

For some reason it only happens when I do a query to select a record with the specified primary key.