public SearchResult<TaskSummary> getSearchTasks(
            String query,
            String freeText,
            int start,
            /*@Max(value = MAX_SEARCH_SIZE, message = "Cannot return more than {value} workflows." +
            " Please use pagination.")*/ int size,
            String sortString) {
        return searchTaskSummary(
                query, freeText, start, size, Utils.convertStringToList(sortString));
    }
This method removes the task from the un-acked Queue

@param taskId: the taskId that needs to be updated and removed from the unacked queue
@return True in case of successful removal of the taskId from the un-acked queue
core/src/main/java/com/netflix/conductor/service/ExecutionService.java