Hi,

I am bit puzzled with this. I am looking at a codebase, where there are multiple joined-subclass mappings (in separate hbm.xml files) which map to same table. For union-subclass, we correctly get exception for duplicate mapping. But for joined-subclass it allows multiple mappings to same table. For Joined subclass, the table mapping is added with following method call.

Table mytable = mappings.addTable(
schema,
catalog,
getClassTableName( joinedSubclass, node, schema, catalog, null, mappings ),
getSubselect( node ),
false

For union-subclass, the mapping gets added with

Table mytable = mappings.addDenormalizedTable(
schema,
catalog,
getClassTableName(unionSubclass, node, schema, catalog, denormalizedSuperTable, mappings ),
unionSubclass.isAbstract() != null && unionSubclass.isAbstract(),
getSubselect( node ),
denormalizedSuperTable
);

mappings.addTable doesnt throw exception if the table mapping already exists.

Is the behaviour for joined subclass by design? or its a bug?