* an array and when a value is potentionally overriden it is added to the array. The single
         * arg option value is retrieved and instead of returning values[values.length-1] it returns
         * values[0] which means that the original value instead of the overridden one is returned
         * (first wins). With properties values are truely overriden since at the end a map is used
         * to merge which means last wins.

      super(delegate, mutex);
    }

    @SuppressWarnings("unchecked")
    @Override
    Collection<E> delegate() {
      return (Collection<E>) super.delegate();
    }

    @Override
    public boolean add(E e) {
      synchronized (mutex) {
        return delegate().add(e);
      }
    }

    @Override
    public boolean addAll(Collection<? extends E> c) {
      synchronized (mutex) {

      super(delegate, mutex);
    }

    @SuppressWarnings("unchecked")
    @Override
    Collection<E> delegate() {
      return (Collection<E>) super.delegate();
    }

    @Override
    public boolean add(E e) {
      synchronized (mutex) {
        return delegate().add(e);
      }
    }

    @Override
    public boolean addAll(Collection<? extends E> c) {
      synchronized (mutex) {

              },
              {
                "color": "red",
                "value": 80
              }
            ]
          },
          "unit": "short"
        },
        "overrides": [
          {
            "matcher": {
              "id": "byName",
              "options": "Replication Errors"
            },
            "properties": [
              {
                "id": "color",

              },
              {
                "color": "red",
                "value": 80
              }
            ]
          },
          "unit": "bytes"
        },
        "overrides": [
          {
            "matcher": {
              "id": "byName",
              "options": "Replication Errors"
            },
            "properties": [
              {
                "id": "color",

        return this.sessions.size();
    }

    @Override
    public int getInflightRequests() {
        return this.response_map.size();
    }

    @Override
    public boolean isDisconnected() {
        final Socket s = this.socket;
        return super.isDisconnected() || s == null || s.isClosed();
    }

    @Override
    public boolean isFailed() {
        final Socket s = this.socket;

      throw new AssertionError();
    }

    @Override
    public DummyInternalEntry getNext() {
      throw new AssertionError();
    }

    @Override
    public int getHash() {
      throw new AssertionError();
    }

    @Override
    public Object getKey() {
      throw new AssertionError();
    }

    @Override
    public Object getValue() {

    }

    @Override
    public int size() {
      return 1 << inputSet.size();
    }

    @Override
    public boolean isEmpty() {
      return false;
    }

    @Override
    public Iterator<Set<E>> iterator() {
      return new AbstractIndexedListIterator<Set<E>>(size()) {
        @Override
        protected Set<E> get(int setBits) {

            "steps": [
              {
                "color": "green",
                "value": null
              }
            ]
          },
          "unit": "dtdurations"
        },
        "overrides": []
      },
      "gridPos": {
        "h": 6,
        "w": 3,
        "x": 0,
        "y": 0
      },
      "id": 1,
      "maxDataPoints": 100,
      "options": {
        "colorMode": "value",

            this.fessConfig = fessConfig;
        }

        @Override
        public String getTrackTotalHits() {
            return request.getParameter(Constants.TRACK_TOTAL_HITS);
        }

        @Override
        public String getQuery() {
            return request.getParameter("q");
        }

        @Override
        public String[] getExtraQueries() {