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						 I use a collection of components for a many-to-many association, and Hibernate throws MappingException when I query it using criteria. The code is as following. 
 But Hibernate works correctly when I use HQL(from PatentApplyForm paf join paf.inventorDatas ids) to query!
 And If I change the association to general many-to-many (without components) association, the criteria works fine!
 The one I can't do is simply many-to-many with components using criteria query!
 
 Hibernate version: 216
 
 Mapping documents:
 <class name="PatentApplyForm" table="...">
 	...
 	<set name="inventorDatas" table="...">
 		<key column="DCNO"/>
 		<composite-element class="InventorData">
 			<many-to-one name="inventorPersonal" class="InventorPersonal" column="INVER_ID" />
 			<property name="reqerYn" column="REQER_YN" />
 		</composite-element>
 	</set>
 </class>
 
 Code:
 Criteria criteria = session.createCriteria(PatentApplyForm.class);
 criteria.createAlias("inventorDatas", "ids");	// throw MappingException...
 
 Full stack trace of exception:
 net.sf.hibernate.MappingException: collection was not an association: tw.gov.nsc.rp.patent.PatentApplyForm.inventorDatas
 	at net.sf.hibernate.type.PersistentCollectionType.getAssociatedClass(PersistentCollectionType.java:206)
 	at net.sf.hibernate.impl.CriteriaImpl.getClassForPath(CriteriaImpl.java:345)
 	at net.sf.hibernate.impl.CriteriaImpl.createAlias(CriteriaImpl.java:302)
 	at net.sf.hibernate.impl.CriteriaImpl.createAlias(CriteriaImpl.java:276)
 ... 
					
  
						
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