validatorSet.addValidator(new BoundaryEventValidator());
validatorSet.addValidator(new IntermediateCatchEventValidator());
validatorSet.addValidator(new IntermediateThrowEventValidator());
validatorSet.addValidator(new MessageValidator());
validatorSet.addValidator(new EventValidator());
validatorSet.addValidator(new EndEventValidator());
validatorSet.addValidator(new ExecutionListenerValidator());
validatorSet.addValidator(new ActivitiEventListenerValidator());
validatorSet.addValidator(new DiagramInterchangeInfoValidator());