Unique constraints defined in XML mapping files are not considered in the following cases:

• UniqueKey: <property name="A" unique-key="A">
• CompositeUniqueKey: <property name="A" unique-key="AB"> <property name="B" unique-key="AB">

Unique constraints defined in XML mapping files are wrongfully loaded in the following case:

• CompositeUniqueKeyWithOneColumnTag: <property name="A" column="A" unique-key="AB"> <property name="B" unique-key="AB">
  In this case a unique constraint for column A only is built.

Running unit tests are attached.