The .getClass() return Class wrong, return <entity>_$$_javassist_0 ------------------------------------------------------------------ Key: HHH-3755 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3755 Project: Hibernate Core Issue Type: Bug Components: core Environment: Hibernate core 3.3.1GA with minimun dependencies JDBC Driver: postgresql-8.3-604.jdbc4.jar DataBase: "PostgreSQL 8.2.3 on i686-pc-mingw32, compiled by GCC gcc.exe (GCC) 3.4.2 (mingw-special)" Reporter: Clayton K. N. Passos Attachments: An error ocurred.jpg, ZTX.rar If you observe the output of execution of the TestCX class, you see an error to second user (Clayton) in return of method getClass(). See class com.ws.model.entities.Mensagem_$$_javassist_0, it's not corret, the correct output is: class com.ws.model.entities.Mensagem In Attachement contain an .rar file with my miniproject to demonstrate a error. Execute TestCX to see aa error. User: Albatrox List Message... class com.ws.model.entities.Mensagem class com.ws.model.entities.Mensagem List MessageUser class com.ws.model.entities.MensagemDestinatario class com.ws.model.entities.MensagemDestinatario User: Clayton List Message... class com.ws.model.entities.Mensagem_$$_javassist_0 class com.ws.model.entities.Mensagem_$$_javassist_0 List MessageUser class com.ws.model.entities.MensagemDestinatario class com.ws.model.entities.MensagemDestinatario User: Jakovisk List Message... List MessageUser -- 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