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Hibernate version:
3.0

Mapping documents:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>

<class name="com.lehman.live.app.usergroup.audit.AuditEvent"
table="ucf_audit_event">

<id name="auditEventId" column="audit_event_id" length="20">
<generator class="hilo"/>
</id>

<many-to-one name="messageId"
class="com.lehman.live.app.usergroup.audit.UCFAuditMessage"
column="message_id"
/>

<property name="eventTypeString" column="event_type"
type="string" length="1"
/>

<property name="eventClass" column="event_class"
type="string" length="100"
/>

<property name="eventDate" column="event_timestamp"
type="date"
/>

<property name="result" column="event_result"
type="string" length="100"
/>

<property name="who" column="who"
type="string" length="20"
/>

<joined-subclass name="com.lehman.live.app.usergroup.audit.GroupAuditEvent"
table="ucf_group_audit_event">

<key column="audit_event_id" />

<property name="groupId" column="group_id"
type="string" length="100"
/>

</joined-subclass>

</class>

</hibernate-mapping>
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>

<class name="com.lehman.live.app.usergroup.audit.UCFAuditMessage"
table="ucf_audit_message">

<id name="messageId" column="message_id">
<generator class="hilo"/>
</id>

<property name="sliceLocationId" column="slice_location_id"
type="string" length="20"
/>

<property name="sliceType" column="slice_type"
type="string" length="20"
/>

<property name="weblogicHost" column="weblogic_host"
type="string" length="40"
/>

<property name="weblogicPortString" column="weblogic_port"
type="string" length="20"
/>

<property name="runtime" column="runtime"
type="string" not-null="true" length="20"
/>

<property name="messageCreateDate" column="message_create_date"
type="date"
/>

<property name="messageReceiveDate" column="message_receive_date"
type="date"
/>

<bag name="auditItems" cascade="all" inverse="true">
<key column="message_id" />
<one-to-many class="com.lehman.live.app.usergroup.audit.AuditEvent" />
</bag>
</class>

</hibernate-mapping>

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

Session session=sessions.openSession();
Transaction tx=session.beginTransaction();
session.save(auditMessage);
tx.commit();
session.close();


Full stack trace of any exception that occurs:

Exception in thread "main" org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of com.lehman.live.app.usergroup.audit.UCFAuditMessage.messageId
at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:119)
at org.hibernate.tuple.AbstractTuplizer.getIdentifier(AbstractTuplizer.java:103)
at org.hibernate.persister.entity.BasicEntityPersister.getIdentifier(BasicEntityPersister.java:2925)
at org.hibernate.persister.entity.BasicEntityPersister.isTransient(BasicEntityPersister.java:2691)
at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:181)
at org.hibernate.engine.ForeignKeys$Nullifier.isNullifiable(ForeignKeys.java:137)
at org.hibernate.engine.ForeignKeys$Nullifier.nullifyTransientReferences(ForeignKeys.java:69)
at org.hibernate.engine.ForeignKeys$Nullifier.nullifyTransientReferences(ForeignKeys.java:47)
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:233)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:159)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:107)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:184)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:173)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:96)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:69)
at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:464)
at org.hibernate.engine.Cascades$5.cascade(Cascades.java:154)
at org.hibernate.engine.Cascades.cascadeAssociation(Cascades.java:771)
at org.hibernate.engine.Cascades.cascade(Cascades.java:720)
at org.hibernate.engine.Cascades.cascadeCollection(Cascades.java:895)
at org.hibernate.engine.Cascades.cascadeAssociation(Cascades.java:792)
at org.hibernate.engine.Cascades.cascade(Cascades.java:720)
at org.hibernate.engine.Cascades.cascade(Cascades.java:847)
at org.hibernate.event.def.AbstractSaveEventListener.cascadeAfterSave(AbstractSaveEventListener.java:362)
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:264)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:159)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:107)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:184)
at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:173)
at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:69)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:477)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:472)
at com.lehman.live.app.usergroup.audit.HibernateTest.main(HibernateTest.java:46)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class
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:324)
at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:105)
... 34 more

Name and version of the database you are using:

IBM DB2

The generated SQL (show_sql=true):

N/A

[DEBUG] SQL - select next_hi from hibernate_unique_key for update with rr
[DEBUG] SQL - update hibernate_unique_key set next_hi = ? where next_hi = ?
[DEBUG] SQL - select next_hi from hibernate_unique_key for update with rr
[DEBUG] SQL - update hibernate_unique_key set next_hi = ? where next_hi = ?


Debug level Hibernate log excerpt:

[DEBUG] CacheManager - Creating new CacheManager with default config
[DEBUG] CacheManager - Configuring ehcache from classpath.
[WARN] Configurator - No configuration found. Configuring ehcache from ehcache-failsafe.xml found in the classpath: jar:file:/view/prowe_ll3.07_dynamic/vob/LehmanLive/config/etg/applications/lehmanlive/WEB-INF/classes/com/lehman/live/app/usergroup/lib/ehcache-1.1.jar!/ehcache-failsafe.xml
[DEBUG] Configuration$DiskStore - Disk Store Path: /tmp
################### UCFAuditMessage.getMessageId(): EXIT w/ -1
[DEBUG] BasicEntityPersister - Static SQL for entity: com.lehman.live.app.usergroup.audit.UCFAuditMessage
[DEBUG] BasicEntityPersister - Version select: select message_id from ucf_audit_message where message_id =?
[DEBUG] BasicEntityPersister - Snapshot select: select ucfauditme_.message_id, ucfauditme_.slice_location_id as slice2_0_, ucfauditme_.slice_type as slice3_0_, ucfauditme_.weblogic_host as weblogic4_0_, ucfauditme_.weblogic_port as weblogic5_0_, ucfauditme_.runtime as runtime0_, ucfauditme_.message_create_date as message7_0_, ucfauditme_.message_receive_date as message8_0_ from ucf_audit_message ucfauditme_ where ucfauditme_.message_id=?
[DEBUG] BasicEntityPersister - Insert 0: insert into ucf_audit_message (slice_location_id, slice_type, weblogic_host, weblogic_port, runtime, message_create_date, message_receive_date, message_id) values (?, ?, ?, ?, ?, ?, ?, ?)
[DEBUG] BasicEntityPersister - Update 0: update ucf_audit_message set slice_location_id=?, slice_type=?, weblogic_host=?, weblogic_port=?, runtime=?, message_create_date=?, message_receive_date=? where message_id=?
[DEBUG] BasicEntityPersister - Delete 0: delete from ucf_audit_message where message_id=?
[DEBUG] BasicEntityPersister - Static SQL for entity: com.lehman.live.app.usergroup.audit.GroupAuditEvent
[DEBUG] BasicEntityPersister - Version select: select audit_event_id from ucf_audit_event where audit_event_id =?
[DEBUG] BasicEntityPersister - Snapshot select: select groupaudit_.audit_event_id, groupaudit_1_.message_id as message2_1_, groupaudit_1_.event_type as event3_1_, groupaudit_1_.event_class as event4_1_, groupaudit_1_.event_timestamp as event5_1_, groupaudit_1_.event_result as event6_1_, groupaudit_1_.who as who1_, groupaudit_.group_id as group2_2_ from ucf_group_audit_event groupaudit_ inner join ucf_audit_event groupaudit_1_ on groupaudit_.audit_event_id=groupaudit_1_.audit_event_id where groupaudit_.audit_event_id=?
[DEBUG] BasicEntityPersister - Insert 0: insert into ucf_audit_event (message_id, event_type, event_class, event_timestamp, event_result, who, audit_event_id) values (?, ?, ?, ?, ?, ?, ?)
[DEBUG] BasicEntityPersister - Update 0: update ucf_audit_event set message_id=?, event_type=?, event_class=?, event_timestamp=?, event_result=?, who=? where audit_event_id=?
[DEBUG] BasicEntityPersister - Delete 0: delete from ucf_audit_event where audit_event_id=?
[DEBUG] BasicEntityPersister - Insert 1: insert into ucf_group_audit_event (group_id, audit_event_id) values (?, ?)
[DEBUG] BasicEntityPersister - Update 1: update ucf_group_audit_event set group_id=? where audit_event_id=?
[DEBUG] BasicEntityPersister - Delete 1: delete from ucf_group_audit_event where audit_event_id=?
[DEBUG] BasicEntityPersister - Static SQL for entity: com.lehman.live.app.usergroup.audit.AuditEvent
[DEBUG] BasicEntityPersister - Version select: select audit_event_id from ucf_audit_event where audit_event_id =?
[DEBUG] BasicEntityPersister - Snapshot select: select auditevent_.audit_event_id, auditevent_.message_id as message2_1_, auditevent_.event_type as event3_1_, auditevent_.event_class as event4_1_, auditevent_.event_timestamp as event5_1_, auditevent_.event_result as event6_1_, auditevent_.who as who1_ from ucf_audit_event auditevent_ where auditevent_.audit_event_id=?
[DEBUG] BasicEntityPersister - Insert 0: insert into ucf_audit_event (message_id, event_type, event_class, event_timestamp, event_result, who, audit_event_id) values (?, ?, ?, ?, ?, ?, ?)
[DEBUG] BasicEntityPersister - Update 0: update ucf_audit_event set message_id=?, event_type=?, event_class=?, event_timestamp=?, event_result=?, who=? where audit_event_id=?
[DEBUG] BasicEntityPersister - Delete 0: delete from ucf_audit_event where audit_event_id=?
[DEBUG] AbstractCollectionPersister - Static SQL for collection: com.lehman.live.app.usergroup.audit.UCFAuditMessage.auditItems
[DEBUG] AbstractCollectionPersister - Row insert: update ucf_audit_event set message_id=? where audit_event_id=?
[DEBUG] AbstractCollectionPersister - Row delete: update ucf_audit_event set message_id=null where message_id=? and audit_event_id=?
[DEBUG] AbstractCollectionPersister - One-shot delete: update ucf_audit_event set message_id=null where message_id=?
[DEBUG] EntityLoader - Static select for entity com.lehman.live.app.usergroup.audit.UCFAuditMessage: select ucfauditme0_.message_id as message1_0_, ucfauditme0_.slice_location_id as slice2_0_0_, ucfauditme0_.slice_type as slice3_0_0_, ucfauditme0_.weblogic_host as weblogic4_0_0_, ucfauditme0_.weblogic_port as weblogic5_0_0_, ucfauditme0_.runtime as runtime0_0_, ucfauditme0_.message_create_date as message7_0_0_, ucfauditme0_.message_receive_date as message8_0_0_ from ucf_audit_message ucfauditme0_ where ucfauditme0_.message_id=?
[DEBUG] EntityLoader - Static select for entity com.lehman.live.app.usergroup.audit.UCFAuditMessage: select ucfauditme0_.message_id as message1_0_, ucfauditme0_.slice_location_id as slice2_0_0_, ucfauditme0_.slice_type as slice3_0_0_, ucfauditme0_.weblogic_host as weblogic4_0_0_, ucfauditme0_.weblogic_port as weblogic5_0_0_, ucfauditme0_.runtime as runtime0_0_, ucfauditme0_.message_create_date as message7_0_0_, ucfauditme0_.message_receive_date as message8_0_0_ from ucf_audit_message ucfauditme0_ where ucfauditme0_.message_id=?
[DEBUG] EntityLoader - Static select for entity com.lehman.live.app.usergroup.audit.UCFAuditMessage: select ucfauditme0_.message_id as message1_0_, ucfauditme0_.slice_location_id as slice2_0_0_, ucfauditme0_.slice_type as slice3_0_0_, ucfauditme0_.weblogic_host as weblogic4_0_0_, ucfauditme0_.weblogic_port as weblogic5_0_0_, ucfauditme0_.runtime as runtime0_0_, ucfauditme0_.message_create_date as message7_0_0_, ucfauditme0_.message_receive_date as message8_0_0_ from ucf_audit_message ucfauditme0_ where ucfauditme0_.message_id=? for update with rr
[DEBUG] EntityLoader - Static select for entity com.lehman.live.app.usergroup.audit.UCFAuditMessage: select ucfauditme0_.message_id as message1_0_, ucfauditme0_.slice_location_id as slice2_0_0_, ucfauditme0_.slice_type as slice3_0_0_, ucfauditme0_.weblogic_host as weblogic4_0_0_, ucfauditme0_.weblogic_port as weblogic5_0_0_, ucfauditme0_.runtime as runtime0_0_, ucfauditme0_.message_create_date as message7_0_0_, ucfauditme0_.message_receive_date as message8_0_0_ from ucf_audit_message ucfauditme0_ where ucfauditme0_.message_id=? for update with rr
[DEBUG] EntityLoader - Static select for entity com.lehman.live.app.usergroup.audit.GroupAuditEvent: select groupaudit0_.audit_event_id as audit1_0_, groupaudit0_1_.message_id as message2_1_0_, groupaudit0_1_.event_type as event3_1_0_, groupaudit0_1_.event_class as event4_1_0_, groupaudit0_1_.event_timestamp as event5_1_0_, groupaudit0_1_.event_result as event6_1_0_, groupaudit0_1_.who as who1_0_, groupaudit0_.group_id as group2_2_0_ from ucf_group_audit_event groupaudit0_ inner join ucf_audit_event groupaudit0_1_ on groupaudit0_.audit_event_id=groupaudit0_1_.audit_event_id where groupaudit0_.audit_event_id=?
[DEBUG] EntityLoader - Static select for entity com.lehman.live.app.usergroup.audit.GroupAuditEvent: select groupaudit0_.audit_event_id as audit1_0_, groupaudit0_1_.message_id as message2_1_0_, groupaudit0_1_.event_type as event3_1_0_, groupaudit0_1_.event_class as event4_1_0_, groupaudit0_1_.event_timestamp as event5_1_0_, groupaudit0_1_.event_result as event6_1_0_, groupaudit0_1_.who as who1_0_, groupaudit0_.group_id as group2_2_0_ from ucf_group_audit_event groupaudit0_ inner join ucf_audit_event groupaudit0_1_ on groupaudit0_.audit_event_id=groupaudit0_1_.audit_event_id where groupaudit0_.audit_event_id=?
[DEBUG] EntityLoader - Static select for entity com.lehman.live.app.usergroup.audit.GroupAuditEvent: select groupaudit0_.audit_event_id as audit1_0_, groupaudit0_1_.message_id as message2_1_0_, groupaudit0_1_.event_type as event3_1_0_, groupaudit0_1_.event_class as event4_1_0_, groupaudit0_1_.event_timestamp as event5_1_0_, groupaudit0_1_.event_result as event6_1_0_, groupaudit0_1_.who as who1_0_, groupaudit0_.group_id as group2_2_0_ from ucf_group_audit_event groupaudit0_ inner join ucf_audit_event groupaudit0_1_ on groupaudit0_.audit_event_id=groupaudit0_1_.audit_event_id where groupaudit0_.audit_event_id=? for update with rr
[DEBUG] EntityLoader - Static select for entity com.lehman.live.app.usergroup.audit.GroupAuditEvent: select groupaudit0_.audit_event_id as audit1_0_, groupaudit0_1_.message_id as message2_1_0_, groupaudit0_1_.event_type as event3_1_0_, groupaudit0_1_.event_class as event4_1_0_, groupaudit0_1_.event_timestamp as event5_1_0_, groupaudit0_1_.event_result as event6_1_0_, groupaudit0_1_.who as who1_0_, groupaudit0_.group_id as group2_2_0_ from ucf_group_audit_event groupaudit0_ inner join ucf_audit_event groupaudit0_1_ on groupaudit0_.audit_event_id=groupaudit0_1_.audit_event_id where groupaudit0_.audit_event_id=? for update with rr
[DEBUG] EntityLoader - Static select for entity com.lehman.live.app.usergroup.audit.AuditEvent: select auditevent0_.audit_event_id as audit1_0_, auditevent0_.message_id as message2_1_0_, auditevent0_.event_type as event3_1_0_, auditevent0_.event_class as event4_1_0_, auditevent0_.event_timestamp as event5_1_0_, auditevent0_.event_result as event6_1_0_, auditevent0_.who as who1_0_, auditevent0_1_.group_id as group2_2_0_, case when auditevent0_1_.audit_event_id is not null then 1 when auditevent0_.audit_event_id is not null then 0 end as clazz_0_ from ucf_audit_event auditevent0_ left outer join ucf_group_audit_event auditevent0_1_ on auditevent0_.audit_event_id=auditevent0_1_.audit_event_id where auditevent0_.audit_event_id=?
[DEBUG] EntityLoader - Static select for entity com.lehman.live.app.usergroup.audit.AuditEvent: select auditevent0_.audit_event_id as audit1_0_, auditevent0_.message_id as message2_1_0_, auditevent0_.event_type as event3_1_0_, auditevent0_.event_class as event4_1_0_, auditevent0_.event_timestamp as event5_1_0_, auditevent0_.event_result as event6_1_0_, auditevent0_.who as who1_0_, auditevent0_1_.group_id as group2_2_0_, case when auditevent0_1_.audit_event_id is not null then 1 when auditevent0_.audit_event_id is not null then 0 end as clazz_0_ from ucf_audit_event auditevent0_ left outer join ucf_group_audit_event auditevent0_1_ on auditevent0_.audit_event_id=auditevent0_1_.audit_event_id where auditevent0_.audit_event_id=?
[DEBUG] OneToManyLoader - Static select for one-to-many com.lehman.live.app.usergroup.audit.UCFAuditMessage.auditItems: select audititems0_.message_id as message2___, audititems0_.audit_event_id as audit1___, audititems0_.audit_event_id as audit1_0_, audititems0_.message_id as message2_1_0_, audititems0_.event_type as event3_1_0_, audititems0_.event_class as event4_1_0_, audititems0_.event_timestamp as event5_1_0_, audititems0_.event_result as event6_1_0_, audititems0_.who as who1_0_, audititems0_1_.group_id as group2_2_0_, case when audititems0_1_.audit_event_id is not null then 1 when audititems0_.audit_event_id is not null then 0 end as clazz_0_ from ucf_audit_event audititems0_ left outer join ucf_group_audit_event audititems0_1_ on audititems0_.audit_event_id=audititems0_1_.audit_event_id where audititems0_.message_id=?
[DEBUG] SessionFactoryObjectFactory - initializing class SessionFactoryObjectFactory
[DEBUG] SessionFactoryObjectFactory - registered: 8a8c925d03f083d00103f083d5ba0000 (unnamed)
[INFO] SessionFactoryObjectFactory - Not binding factory to JNDI, no JNDI name configured
[DEBUG] SessionFactoryImpl - instantiated session factory
[INFO] SessionFactoryImpl - Checking 0 named queries
[DEBUG] SessionImpl - opened session at timestamp: 4572904249118720
[DEBUG] JDBCTransaction - begin
[DEBUG] AbstractBatcher - opening JDBC connection
[TRACE] DriverManagerConnectionProvider - total checked-out connections: 0
[TRACE] DriverManagerConnectionProvider - using pooled JDBC connection, pool size: 0
[DEBUG] JDBCTransaction - current autocommit status: false
[TRACE] DefaultSaveOrUpdateEventListener - saving transient instance
[DEBUG] AbstractBatcher - opening JDBC connection
[TRACE] DriverManagerConnectionProvider - total checked-out connections: 1
[DEBUG] DriverManagerConnectionProvider - opening new JDBC connection
[DEBUG] DriverManagerConnectionProvider - created connection to: jdbc:db2://daulb014:60008/daucf, Isolation Level: 2
[DEBUG] SQL - select next_hi from hibernate_unique_key for update with rr
[DEBUG] SQL - update hibernate_unique_key set next_hi = ? where next_hi = ?
[DEBUG] AbstractBatcher - closing JDBC connection (open PreparedStatements: 0, globally: 0) (open ResultSets: 0, globally: 0)
[TRACE] DriverManagerConnectionProvider - returning connection to pool, pool size: 1
[DEBUG] TableHiLoGenerator - new hi value: 31
[DEBUG] AbstractSaveEventListener - generated identifier: 1015808, using strategy: org.hibernate.id.TableHiLoGenerator
[TRACE] AbstractSaveEventListener - saving [com.lehman.live.app.usergroup.audit.UCFAuditMessage#1015808]
################### UCFAuditMessage.setMessageId(): ENTRY w/ 1015808
[TRACE] Cascades - processing cascade ACTION_SAVE_UPDATE for: com.lehman.live.app.usergroup.audit.UCFAuditMessage
[TRACE] Cascades - done processing cascade ACTION_SAVE_UPDATE for: com.lehman.live.app.usergroup.audit.UCFAuditMessage
[TRACE] WrapVisitor - Wrapped collection in role: com.lehman.live.app.usergroup.audit.UCFAuditMessage.auditItems
[TRACE] Cascades - processing cascade ACTION_SAVE_UPDATE for: com.lehman.live.app.usergroup.audit.UCFAuditMessage
[TRACE] Cascades - cascade ACTION_SAVE_UPDATE for collection: com.lehman.live.app.usergroup.audit.UCFAuditMessage.auditItems
[TRACE] Cascades - cascading to saveOrUpdate: com.lehman.live.app.usergroup.audit.AuditEvent
[TRACE] Cascades - id unsaved-value: -1
[TRACE] AbstractSaveEventListener - transient instance of: com.lehman.live.app.usergroup.audit.AuditEvent
[TRACE] DefaultSaveOrUpdateEventListener - saving transient instance
[DEBUG] AbstractBatcher - opening JDBC connection
[TRACE] DriverManagerConnectionProvider - total checked-out connections: 1
[TRACE] DriverManagerConnectionProvider - using pooled JDBC connection, pool size: 0
[DEBUG] SQL - select next_hi from hibernate_unique_key for update with rr
[DEBUG] SQL - update hibernate_unique_key set next_hi = ? where next_hi = ?
[DEBUG] AbstractBatcher - closing JDBC connection (open PreparedStatements: 0, globally: 0) (open ResultSets: 0, globally: 0)
[TRACE] DriverManagerConnectionProvider - returning connection to pool, pool size: 1
[DEBUG] TableHiLoGenerator - new hi value: 32
[DEBUG] AbstractSaveEventListener - generated identifier: 1048576, using strategy: org.hibernate.id.TableHiLoGenerator
[TRACE] AbstractSaveEventListener - saving [com.lehman.live.app.usergroup.audit.GroupAuditEvent#1048576]
[ERROR] BasicPropertyAccessor - IllegalArgumentException in class: com.lehman.live.app.usergroup.audit.UCFAuditMessage, getter method of property: messageId

What do your Java classes look like ?