ClassNotFoundException on my entity-name in a join tag ------------------------------------------------------ Key: HHH-1877 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1877 Project: Hibernate Core Issue Type: Bug Affects Versions: 3.1.3 Environment: Hibernate 3.1.3, Spring 1.2.8, Oracle 9I, Windows XP (localhost) Reporter: Christian Mineau Attachments: HBM-1877-patch.patch, HBM-1877-testcase.zip, HHH-1877.patch, testcase-HHH1877.ZIP I use the attribute "entity-name" in my class mapping, this is for mapping the same object many times on table(s), and all seem to work normally. I found a problem when I tried to join a table on another class mapping, like: <class entity-name="categoryDefault" name="ca.cie.pak.CategoryVO" table="CATEGORY"> <id name="id" column="CATEGORY_ID" type="java.lang.Integer"> <generator class="native"/> </id> <property name="name" column="NAME"/> <bag name="contents" where="priority = 0"> <key column="CATEGORY_ID" /> <one-to-many entity-name="ContentSummary"/> </bag> <join table="LAYOUT_CATEGORY"> <key foreign-key="CATEGORY_ID" column="CATEGORY_ID" /> <property name="layoutId" column="LAYOUT_ID"/> </join> </class> I found a ClassNotFoundException: categoryDefault. This exception is thrown when the HbmBinder.bindJoin method is called. I see the code and it tries to instantiate a class from the getEntityName and not by the className. Someone can answer me if this is a XML mapping error or a real bug and what I need to do.