@Override
    public synchronized void put(ConnectorStatus status) {
        if (status.state() == ConnectorStatus.State.DESTROYED)
            connectors.remove(status.id());
        else
            connectors.put(status.id(), status);
    }
An implementation of StatusBackingStore that stores statuses in-memory.
connect/runtime/src/main/java/org/apache/kafka/connect/storage/MemoryStatusBackingStore.java