@Override
        public void handleServerDisconnect(long now, String destinationId, Optional<AuthenticationException> maybeFatalException) {
            maybeFatalException.ifPresent(AdminMetadataManager.this::updateFailed);
            AdminMetadataManager.this.requestUpdate();
        }
The cluster with which the metadata was bootstrapped.
clients/src/main/java/org/apache/kafka/clients/admin/internals/AdminMetadataManager.java