public void addRequiredAttributeValueError(final String val) throws ValidationException
    {
        addError(StringFormatter.format(MessageConstants.MESSAGES.attributeValueMustBeFixed(), val));
    }
public void addRequiredAttributeValueError ( final String val ) throws ValidationException { addError ( StringFormatter . format ( MessageConstants . MESSAGES . attributeValueMustBeFixed ( ) , val ) ) ; }
Calls {@link #addError(String)} with a message that indicates
that the attribute on the context stack must have a specific (hardcoded) value.

@param val The value that was found (and was wrong)

@throws ValidationException