If an entity property is defined with the name “class”, it will generate a getter for that with the name getClass, which overrides Java’s Object’s built-in getClass. This fails. Maybe it should be renamed internally.

Submitted by Zef Hemel on 18 March 2010 at 15:28

Same goes for: “id” and “version”

Constraints have been added to prevent the use of these built-in property names.
Also disabled ‘class’ as property name for the moment.