[hibernate-issues] [Hibernate-JIRA] Closed: (HHH-1371) MappingException is thrown when the same column is referenced with different case

MappingException is thrown when the same column is referenced with different case --------------------------------------------------------------------------------- Key: HHH-1371 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1371 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.1.1 Environment: Oracle Database 10g Enterprise Edition Release 10.1.0.4.0 - Production With the Partitioning, OLAP and Data Mining options JDBC Driver Version is Oracle JDBC driver 10.2.0.1.0 Oracle Application Server Containers for J2EE 10g (10.1.2.0.2) (OC4J) Reporter: Jifeng Liu Assignee: Emmanuel Bernard Priority: Minor Fix For: 3.1.2 Attachments: hibernate.cfg.xml, stacktrace.txt I got org.hibernate.MappingException: Same logical column name referenced several times: Marking_Periods.School_Id School_ID School_Id. Please see attached file for full stack trace. My mapping file works for Hibernate 3.1. But it fails after I installed Hibernate 3.1.1 jar file. The mapping file that causes MappingException is: <hibernate-mapping> <class name="com.senior.bll.academic.school.MarkingPeriod" table="Marking_Periods" rowid="rowid"> <composite-id> <key-property name="schoolId" column="School_ID"/> <key-property name="academicYear" column="Academic_Yr"/> <key-property name="sortNo" column="Period_Sort_No"/> </composite-id> <property name="name" column="Name"/> <property name="abbrev" column="Abbrev"/> <!-- this many-to-one uses School_Id, Academic_Yr field that is also used in other places. That is the reason that it has properties: insert="false" update="false". --> <property name="termSortNo" column="Term_Sort_No"/> <many-to-one name="term" cascade="save-update" fetch="join" insert="false" update="false" > <column name="School_Id" /> <column name="Academic_Yr" /> <column name="Term_Sort_No" /> </many-to-one> <filter name="schoolId" condition="School_Id=:schoolId"/> </class> </hibernate-mapping>