Cannot use formula element in a many-to-one mapping in a composite-key for a set -------------------------------------------------------------------------------- Key: HHH-760 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-760 Project: Hibernate Core Issue Type: Patch Components: core Affects Versions: 3.0.5 Environment: Hibernate 3.0.5, SQL Server Reporter: David Good Attachments: Set.java, StringHelper.java A mapping of the following type: <set name="addresses" table="addrlink" cascade="all"> <key column="alnk_oguid"/> <composite-element class="AddressLink"> <property name="default" column="alnkdeflt"/> <many-to-one name="addressType" cascade="none"> <formula>'AT'</formula> <column name="alnktype" not-null="true"></column> </many-to-one> <many-to-one name="address" column="alnk_addrguid" cascade="all"/> </composite-element> </set> results in a ClassCastException at saveOrUpdate as the formula element is not handled by the Set class, which expects a column element. The attached files resolve this issue in v3.0.5. I apologise that I am at present unable to generate CVS diffs.