Group has to be an interface - Documentation or code bug -------------------------------------------------------- Key: HV-471 URL: http://opensource.atlassian.com/projects/hibernate/browse/HV-471 Project: Hibernate Validator Issue Type: Task Affects Versions: 4.1.0.Final Reporter: Vladislav Pernin The documentation says : The Bean Validation specification does not enforce that groups have to be interfaces. Non interface classes could be used as well, but we recommend to stick to interfaces. But the code says something else : javax.validation.ValidationException: A group has to be an interface. <class.name> is not. at org.hibernate.validator.engine.groups.GroupChainGenerator.getGroupChainFor(GroupChainGenerator.java:52) at org.hibernate.validator.engine.ValidatorImpl.determineGroupExecutionOrder(ValidatorImpl.java:176) at org.hibernate.validator.engine.ValidatorImpl.validate(ValidatorImpl.java:113) Could it be related to HV-165 ? -- 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