unexpected object loading with Mixing table per class hierarchy with table per subclass --------------------------------------------------------------------------------------- Key: HHH-2422 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2422 Project: Hibernate3 Type: Bug Components: core Versions: 3.2.1, 3.2.0.cr4, 3.2.2, 3.2.0.ga, 3.2.0.cr5 Environment: Linux(Red Hat 4.0 AS) + JBOSS4.0.5.GA + Hibernate 3.2.2.GA + MySQL5.0.27 Community edition + JDK1.5_06 Reporter: Paul Song Priority: Critical Attachments: sourceCode.rar 3 entity classes: Token, AudioToken, Actor. AudioToken is a subclass of Token, Token is a member variable of Actor. That means Actor instance may have Token object or AudioToken object at runtime. The mapping definition of Token and Audio Token use Mixing table per class hierarchy with table per subclass. So the Audio Token has its own properties in a different sub table(AudioToken table) besides it has common properties in token table. When loading actor, this actor will get its token object reference automatically according to mapping(lazy loading is false). Although the audio token object is returned, it did not contain information of sub table(i.e. serialNumber) but just that of parent table(i.e., id, type counter etc.) The same exact code package is working well with following Environment: 1, Windows2003 + JBOSS4.0.5.GA + Hibernate 3.2.2.GA + MySQL5.0.27 Community edition + JDK1.5_06 2, Windows2003 + WebLogic(9.1, 9.2)+ Hibernate 3.2.2.GA + MySQL5.0.27 Community edition + JDK1.5_06 3,Linux(Redhat 4.0 AS) + WebLogic(9.1, 9.2)+ Hibernate 3.2.2.GA + MySQL5.0.27 Community edition + JDK1.5_06 Except above unexpected object return, When I use AudioTokenDao to get the object by PK, I can get the object containing information of both parent table and sub table. but If I use TokenDao to get the object by same PK, I can only get the object containing information of parent table(Token table). it's not expected this way but happened on environment of Linux(Red Hat 4.0 AS) + JBOSS4.0.5.GA + Hibernate 3.2.2.GA + MySQL5.0.27 Community edition + JDK1.5_06 -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira