javax.validation.ValidationException: A group has to be an interface. <> is not.

Hibernate JIRA | Vladislav Pernin | 6 years ago
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    Root Cause Analysis

    1. javax.validation.ValidationException

      A group has to be an interface. <> is not.

      at org.hibernate.validator.engine.groups.GroupChainGenerator.getGroupChainFor()
    2. Embedded GlassFish Web
      1. org.hibernate.validator.engine.groups.GroupChainGenerator.getGroupChainFor(
      1 frame
    3. Vaadin
      1. org.hibernate.validator.engine.ValidatorImpl.determineGroupExecutionOrder(
      2. org.hibernate.validator.engine.ValidatorImpl.validate(
      2 frames