code: @Deprecated
      public synchronized FailureDetectorConfig setNodes(Collection<Node> nodes) {
          Utils.notNull(nodes);
          this.nodes = new HashSet<Node>(nodes);
          return this;
      }
docs: Assigns a list of nodes in the cluster represented by this failure
  detector configuration.
  
  @param nodes Collection of Node instances, usually determined from the
  Cluster; must be non-null