checkState((currentTime && (time == 0)) || (!currentTime && (time >= 0)), "either current time or custom time must be set");
checkState(!StringUtils.isBlank(text), "text must not be empty");
checkState(postId != null, "post must not be null");
/* create new post reply. */
checkState((currentTime && (time == 0)) || (!currentTime && (time >= 0)), "either current time or custom time must be set");
checkState(!StringUtils.isBlank(text), "text must not be empty");
checkState(postId != null, "post must not be null");
/* create new post reply. */