public void addTopic(String topic) {
        if (isTopicCreationEnabled) {
            topicCache.add(topic);
        }
    }
Inform this utility instance that a topic has been created and its creation will no
longer be required. After this method is called for a given {@code topic},
any subsequent calls to {@link #isTopicCreationRequired} will return {@code false} for the
same topic.

@param topic the topic name to mark as created
connect/runtime/src/main/java/org/apache/kafka/connect/util/TopicCreation.java