I have a class hierarchy as follows:

The following table shows which attributes are on each class:

Using InheritanceType.SINGLE_TABLE, it works.

Using InheritanceType.JOINED or InheritanceType.TABLE_PER_CLASS at the IntermediateClass level causes different errors:

Using InheritanceType.JOINED causes an incorrect insert statement which thinks that field4 is on table leafclass rather than leafclass2:

Using InheritanceType.TABLE_PER_CLASS causes the following error as the session factory is built:

A minimal test case is attached as an maven and eclipse project. mvn test will show the error. I have not created a test case for each inheritance type - you will have to change it in the intermediate domain class to see the other error.