Need help with Hibernate? Read this first:
http://www.hibernate.org/ForumMailingli ... AskForHelp

Hibernate version: 2

Mapping documents:

Code between sessionFactory.openSession() and session.close():


Full stack trace of any exception that occurs:
Hibernate: select sponsorimp0_.UID as UID, sponsorimp0_.class as class, sponsorimp0_.REMARK as REMARK, sponsorimp0_.SP_SOURCE_DATE as SP_SOURC4_, sponsorimp0_.LIST_DATE as LIST_DATE, sponsorimp0_.ETR_SPONSOR_ID as ETR_SPON6_, sponsorimp0_.ETRED as ETRED, sponsorimp0_.CHANGED as CHANGED, sponsorimp0_.INT_LISTED as INT_LISTED, sponsorimp0_.MONITORED as MONITORED, sponsorimp0_.ETR_NOTIFICATION as ETR_NOT11_, sponsorimp0_.MODIFY_DATE as MODIFY_12_, sponsorimp0_.MODIFY_BY as MODIFY_BY, sponsorimp0_.SPONSOR_TYPE_FK as SPONSOR14_, sponsorimp0_.SPONSOR_SOURCE_FK as SPONSOR15_, sponsorimp0_.ACCOUNT_FK as ACCOUNT_FK, sponsorimp0_.INTERNAL_LIST_FK as INTERNA17_, sponsorimp0_.CUSTOMER_ORG_FK as CUSTOME18_, sponsorimp0_.IC_NO as IC_NO, sponsorimp0_.NEW_IC as NEW_IC, sponsorimp0_.PASSPORT_NO as PASSPOR21_, sponsorimp0_.INDIVIDUAL_FK as INDIVID22_, sponsorimp0_.COMPANY_NO as COMPANY_NO, sponsorimp0_.ORGANISATION_FK as ORGANIS24_, sponsorimp0_.BUS_REG_NO as BUS_REG_NO from SPONSOR sponsorimp0_, CUSTORG customeror1_ where (sponsorimp0_.CUSTOMER_ORG_FK like ? )and(customeror1_.USER_ORG_FK like ? and sponsorimp0_.CUSTOMER_ORG_FK=customeror1_.CUSTORGUID)
Hibernate: select individual0_.UID as UID3_, individual0_.POSITION_FK as POSITIO11_3_, individual0_.SOLUTATION_FK as SOLUTAT12_3_, individual0_.ACTIVE as ACTIVE3_, individual0_.EXPIRY_DATE as EXPIRY_D4_3_, individual0_.NAME as NAME3_, individual0_.CREATE_DATE as CREATE_D6_3_, individual0_.CREATE_BY as CREATE_BY3_, individual0_.MODIFY_DATE as MODIFY_D8_3_, individual0_.MODIFY_BY as MODIFY_BY3_, individual0_.PARTY_TYPE_FK as PARTY_T10_3_, positionim1_.UID as UID0_, positionim1_.NAME as NAME0_, positionim1_.DESCRIPTION as DESCRIPT3_0_, positionim1_.SEQ as SEQ0_, solutation2_.UID as UID1_, solutation2_.SOLUTATION as SOLUTATION1_, solutation2_.DESCRIPTION as DESCRIPT3_1_, solutation2_.SEQ as SEQ1_, partytypei3_.UID as UID2_, partytypei3_.NAME as NAME2_, partytypei3_.DESCRIPTION as DESCRIPT3_2_, partytypei3_.CODE as CODE2_, partytypei3_.SEQ as SEQ2_ from PARTY individual0_ left outer join POSITION positionim1_ on individual0_.POSITION_FK=positionim1_.UID left outer join SOLUTATION solutation2_ on individual0_.SOLUTATION_FK=solutation2_.UID left outer join PARTYTYPE partytypei3_ on individual0_.PARTY_TYPE_FK=partytypei3_.UID where individual0_.UID=?
Hibernate: select sponsortyp0_.UID as UID0_, sponsortyp0_.NAME as NAME0_, sponsortyp0_.DESCRIPTION as DESCRIPT3_0_, sponsortyp0_.SEQ as SEQ0_ from SPONSOR_TYPE sponsortyp0_ where sponsortyp0_.UID=?
Hibernate: select sponsorsou0_.UID as UID0_, sponsorsou0_.NAME as NAME0_, sponsorsou0_.DESCRIPTION as DESCRIPT3_0_ from SPONSOR_SOURCE sponsorsou0_ where sponsorsou0_.UID=?
Hibernate: select legalidimp0_.UID as UID, legalidimp0_.LEGAL_NO as LEGAL_NO, legalidimp0_.LEGAL_ID_TYPE_FK as LEGAL_ID3_, legalidimp0_.PARTY_FK as PARTY_FK from LEGALID legalidimp0_ where (legalidimp0_.PARTY_FK=? )
Hibernate: select legalidtyp0_.UID as UID1_, legalidtyp0_.NAME as NAME1_, legalidtyp0_.DESCRIPTION as DESCRIPT3_1_, legalidtyp0_.SEQ as SEQ1_, legalidtyp0_.PARTY_TYPE_FK as PARTY_TY5_1_, partytypei1_.UID as UID0_, partytypei1_.NAME as NAME0_, partytypei1_.DESCRIPTION as DESCRIPT3_0_, partytypei1_.CODE as CODE0_, partytypei1_.SEQ as SEQ0_ from LEGALIDTYPE legalidtyp0_ left outer join PARTYTYPE partytypei1_ on legalidtyp0_.PARTY_TYPE_FK=partytypei1_.UID where legalidtyp0_.UID=?
Hibernate: select partytypei0_.UID as UID, partytypei0_.NAME as NAME, partytypei0_.DESCRIPTION as DESCRIPT3_, partytypei0_.CODE as CODE, partytypei0_.SEQ as SEQ from PARTYTYPE partytypei0_ where (partytypei0_.CODE=? )
Hibernate: select sponsorsou0_.UID as UID, sponsorsou0_.NAME as NAME, sponsorsou0_.DESCRIPTION as DESCRIPT3_ from SPONSOR_SOURCE sponsorsou0_ where (sponsorsou0_.NAME=? )

java.lang.ClassCastException: java.util.ArrayList
at net.sf.hibernate.type.SetType.wrap(SetType.java:24)
at net.sf.hibernate.impl.WrapVisitor.processArrayOrNewCollection(WrapVisitor.java:78)
at net.sf.hibernate.impl.WrapVisitor.processCollection(WrapVisitor.java:49)
at net.sf.hibernate.impl.AbstractVisitor.processValue(AbstractVisitor.java:69)
at net.sf.hibernate.impl.WrapVisitor.processValues(WrapVisitor.java:93)
at net.sf.hibernate.impl.SessionImpl.flushEntity(SessionImpl.java:2492)
at net.sf.hibernate.impl.SessionImpl.flushEntities(SessionImpl.java:2458)
at net.sf.hibernate.impl.SessionImpl.flushEverything(SessionImpl.java:2260)
at net.sf.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:1805)
at net.sf.hibernate.impl.SessionImpl.getQueries(SessionImpl.java:1568)
at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1533)
at net.sf.hibernate.impl.QueryImpl.list(QueryImpl.java:39)
at my.com.calyx.creditFile.pObj.LegalIdTypeFactory.findByName(LegalIdTypeFactory.java:101)
at my.com.calyx.creditFile.dao.SponsorManager.addSponsor(SponsorManager.java:359)
at my.com.calyx.creditFile.action.SponsorAction.add(SponsorAction.java:146)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:280)
at org.apache.struts.actions.LookupDispatchAction.execute(LookupDispatchAction.java:252)
at my.com.calyx.creditFile.action.BaseAction.execute(BaseAction.java:54)
at my.com.calyx.creditFile.action.SponsorAction.execute(SponsorAction.java:55)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at my.com.calyx.creditFile.bo.AccessFilter.doFilter(AccessFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)

Name and version of the database you are using:mysql4

I'm getting this problem.. i run the debugger and step through it. The debugger stops at and then jumps to the catch block. Been looking through forms and etc but found nothing much hepful.

Read this: http://hibernate.org/42.html