Description of problem:
currently, if big transfer object (*Parameters) is validated, only the message of failure is rendered to the user. That is description of failing field. However if given transfer object forms along aggregations a deep tree, it would be better if better identification of failing field is provided. Imagine *Parameters class, which aggregates 20 another bean in collection; it'd be better if failing bean is identified.

Each ConstraintViolation instance has propertyPath exactly identifying record containing failing field. We can somehow use this information and present it to the user.