@Override
        public synchronized boolean isCancelled() {
            return false;
        }
Stop reading from and writing to the offsets topic, and relinquish resources allocated for interacting
with it, including Kafka clients.
<p>
The admin client derived from the given {@link Supplier} will not be closed and it is the
caller's responsibility to manage its lifecycle accordingly.
connect/runtime/src/main/java/org/apache/kafka/connect/storage/KafkaOffsetBackingStore.java