Map<Uuid, ResultOrError<String>> findTopicNames(long offset, Collection<Uuid> ids) {
        Map<Uuid, ResultOrError<String>> results = new HashMap<>(ids.size());
        for (Uuid id : ids) {
            if (id == null || id.equals(Uuid.ZERO_UUID)) {
                results.put(id, new ResultOrError<>(new ApiError(INVALID_REQUEST,
                    "Attempt to find topic with invalid topicId " + id)));
            } else {
                TopicControlInfo topic = topics.get(id, offset);
                if (topic == null) {
                    results.put(id, new ResultOrError<>(new ApiError(UNKNOWN_TOPIC_ID)));
                } else {
                    results.put(id, new ResultOrError<>(topic.name));
                }
            }
        }
        return results;
    }
Timer for partition reassignment elect timeout.
metadata/src/main/java/org/apache/kafka/controller/ReplicationControlManager.java