Hi,

I'm trying to persist a map but a ClassCastException occurs when trying to count the items (select count suing a native query).

I use the 3.3.0.SP1 release of hibernate core.

The mapping file:
<map name="properties" table="PROPERTIES" lazy="true" mutable="true">
<key column="PKEY" not-null="true" foreign-key="PKEY" />
<map-key type="java.lang.String" column="NAME" length="64" />
<element column="VALUE" type="java.lang.String" length="255" not-null="false" />
</map>
<component name="licenses" lazy="false" class="LicensesImpl">
<map name="values" table="LICENSES" lazy="false" mutable="true">
<key column="PKEY" not-null="true" foreign-key="PKEY" />
<map-key column="FEATURE" type="java.lang.String" length="32" />
<element column="VALUE" type="java.lang.Boolean" not-null="false" />
</map>
</component>

The properties seems to be ok (I have tried without it) but not the licenses.

The exception is described below:
Caused by: java.lang.ClassCastException: java.util.HashMap cannot be cast to org.hibernate.collection.PersistentCollection
at org.hibernate.event.def.DirtyCollectionSearchVisitor.processCollection(DirtyCollectionSearchVisitor.java:74)
at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:124)
at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:84)
at org.hibernate.event.def.AbstractVisitor.processValues(AbstractVisitor.java:63)
at org.hibernate.event.def.AbstractVisitor.processComponent(AbstractVisitor.java:105)
at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:130)
at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:84)
at org.hibernate.event.def.AbstractVisitor.processEntityPropertyValues(AbstractVisitor.java:78)
at org.hibernate.event.def.DefaultFlushEntityEventListener.hasDirtyCollections(DefaultFlushEntityEventListener.java:451)
at org.hibernate.event.def.DefaultFlushEntityEventListener.isUpdateNecessary(DefaultFlushEntityEventListener.java:439)
at org.hibernate.event.def.DefaultFlushEntityEventListener.isUpdateNecessary(DefaultFlushEntityEventListener.java:228)
at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:150)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:219)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:99)
at org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:58)
at org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:996)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1141)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:102)
at org.hibernate.ejb.QueryImpl.getSingleResult(QueryImpl.java:88)

Thanks.