question: @ Override public boolean validate ( Class < ? extends C > obj ) throws ParameterException { if ( obj == null ) { throw new UnspecifiedParameterException ( this ) ; } if ( ! restrictionClass . isAssignableFrom ( obj ) ) { throw new WrongParameterValueException ( this , obj . getName ( ) , "Given class not a subclass / implementation of " + restrictionClass . getName ( ) ) ; } if ( ! super . validate ( obj ) ) { return false ; } return true ; }
target:  Checks if the given parameter value is valid for this ClassParameter. If not a parameter exception is thrown.