<key-property> will actually pick up <type> tags if it were allowed by the DTD ------------------------------------------------------------------------------ Key: HHH-822 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-822 Project: Hibernate3 Issue Type: Bug Components: core Affects Versions: 3.0 final, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5 Reporter: amit bhayani Fix For: 3.1 beta 2 The DTD does not allow map to have a composite-map-key where one of it's property is a usertype that implements ParameterizedType. for example: <map name="pgtaPermission" table="USERDESKPERMISSIONS_TABLE" lazy="false" fetch="select"> <key column="USERDBID"/> <composite-map-key class="UserPermDBImpl$UserPermissionData$PitGroupTAPermissionKey"> <key-property name="pitGroup" column="PITGROUPDBID"> <type name="com.tullib.core.hibernate.usertype.BasicEnumUserType"> <param name="CLASS"> com.tullib.sds.party.User$UserType</param> </type> </key-property> ............... </composite-map-key> </map> If hibernate-mapping-3.0.dtd is modified to have <type> in <key-property> tag it should work