message: Fix for randomly failing tests (null in KafkaCluster.getTopics())
diff: @@ -5,6 +5,7 @@ import com.provectus.kafka.ui.mapper.ClusterMapper;
  import com.provectus.kafka.ui.model.Feature;
  import com.provectus.kafka.ui.model.KafkaCluster;
  import java.util.Collection;
  +import java.util.HashMap;
  import java.util.Map;
  import java.util.Optional;
  import java.util.concurrent.ConcurrentHashMap;
  @@ -34,6 +35,7 @@ public class ClustersStorage {
  kafkaClusters.put(
  clusterProperties.getName(),
  cluster.toBuilder()
  + .topics(new HashMap<>())
  .features(Feature.getEnabledFeatures(cluster))
  .build()
  );
  