Hibernate + inherited entity with getId overrided + Different behavior in Win and Linux --------------------------------------------------------------------------------------- Key: JASSIST-187 URL: https://issues.jboss.org/browse/JASSIST-187 Project: Javassist Issue Type: Bug Affects Versions: 3.16.0-GA, 3.16.1-GA, 3.17.0-GA Environment: Windows 7 x64 Oracle JVM x86/x64 1.6.37 - no error Linux Ubuntu x64 Oracle JVM x64 1.6.37 - error Reporter: Alexander Zinin Assignee: Shigeru Chiba Attachments: javassist-test.rar It will be difficult to describe what the error. I will attach source code that reproduce error. If you have hibernate entity with overrided getId() method, in hibernate session this method returns null instead of correct value. Running on Windows: 2012-12-16 17:33:19,332 INFO ru.zinin.service.SomeServiceImpl :44 - ID = 1 Running on Linux: 2012-12-16 17:41:47,772 INFO ru.zinin.service.SomeServiceImpl :44 - ID = null 2012-12-16 17:41:47,772 ERROR ru.zinin.service.SomeServiceImpl :46 - ID IS NULL!!! Bug appeared in version 3.16.0.