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Hibernate version: 3

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 default-access="field" auto-import="false">

<class name="com.ibm.wsdl.MessageImpl" table="WSDL_MESSAGE">

<cache usage="nonstrict-read-write" />
<id type="long" column="ID_">
<generator class="native" />
</id>

<property name="name" type="qname">
<column name="LOCALNAME_" />
<column name="NAMESPACE_" />
</property>
<map name="parts" cascade="all">
<key column="MESSAGE_" />
<index column="NAME_" type="string" />
<one-to-many class="com.ibm.wsdl.PartImpl" />
</map>

</class>

</hibernate-mapping>

Code between sessionFactory.openSession() and session.close():
I am not using hibernate directly but using JBPM BPEL engine running on JBoss 4.0.5 which uses hibernate internally.

Full stack trace of any exception that occurs:
16:52:26,317 ERROR [STDERR] org.hibernate.PropertyAccessException: could not get
a field value by reflection getter of com.ibm.wsdl.MessageImpl.parts
at org.hibernate.property.DirectPropertyAccessor$DirectGetter.get(Direct
PropertyAccessor.java:35)
at org.hibernate.tuple.entity.AbstractEntityTuplizer.getPropertyValue(Ab
stractEntityTuplizer.java:277)
at org.hibernate.persister.entity.AbstractEntityPersister.getPropertyVal
ue(AbstractEntityPersister.java:3514)
at org.hibernate.engine.Cascade.cascade(Cascade.java:130)
at org.hibernate.event.def.AbstractSaveEventListener.cascadeBeforeSave(A
bstractSaveEventListener.java:412)
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplic
ate(AbstractSaveEventListener.java:261)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(Abstrac
tSaveEventListener.java:180)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId
(AbstractSaveEventListener.java:108)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGene
ratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:186)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTran
sient(DefaultSaveOrUpdateEventListener.java:175)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveO
rUpdate(DefaultSaveOrUpdateEventListener.java:98)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpda
te(DefaultSaveOrUpdateEventListener.java:70)
at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:507)

at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:499)
at org.hibernate.engine.CascadingAction$1.cascade(CascadingAction.java:2
18)
at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268)
at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216)
at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:2
96)
at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:242)
at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:219)
at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
at org.hibernate.engine.Cascade.cascade(Cascade.java:130)
at org.hibernate.event.def.AbstractSaveEventListener.cascadeAfterSave(Ab
stractSaveEventListener.java:437)
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplic
ate(AbstractSaveEventListener.java:326)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(Abstrac
tSaveEventListener.java:180)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId
(AbstractSaveEventListener.java:108)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGene
ratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:186)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTran
sient(DefaultSaveOrUpdateEventListener.java:175)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveO
rUpdate(DefaultSaveOrUpdateEventListener.java:98)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpda
te(DefaultSaveOrUpdateEventListener.java:70)
at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:507)

at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:499)
at org.hibernate.engine.CascadingAction$1.cascade(CascadingAction.java:2
18)
at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268)
at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216)
at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:2
96)
at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:242)
at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:219)
at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
at org.hibernate.engine.Cascade.cascade(Cascade.java:130)
at org.hibernate.event.def.AbstractSaveEventListener.cascadeAfterSave(Ab
stractSaveEventListener.java:437)

Name and version of the database you are using:

SQL Server 2005 Express edition

Problem : When I send my BPEL and WSDL files over to JBPM, it reads the files and stores them into database using hibernate. But I get above stack trace on MessageImpl class from wsdl4j. I want to understand what are the cases under which I may get this exception? What in my configuration could be wrong? Does it mean 'getParts' doesn't exist at all? When I checked MessageImpl class from wsdl4j in version 1.6.1 and one prior to that, they both have 'getParts'. Btw my web application uses wsdl4j 1.6.1 but JBoss's default\lib contains older version. Could that be the cause?

Thank you,
Meghana