return set(rowIndex, columnIndex, value);
  }

  /*
   * TODO(jlevy): Consider creating a merge() method, similar to putAll() but
   * copying non-null values only.
   */

  /**
   * {@inheritDoc}
   *
   * <p>If {@code table} is an {@code ArrayTable}, its null values will be stored in this table,
   * possibly replacing values that were previously non-null.
   *

    Set<K> ks = keySet;
    return (ks != null) ? ks : (keySet = new KeySet());
  }

  @LazyInit transient @Nullable Collection<V> values;

  @Override
  public Collection<V> values() {
    Collection<V> vs = values;
    return (vs != null) ? vs : (values = new Values());
  }

  @LazyInit transient @Nullable Set<Entry<K, V>> entrySet;

  @Override
  public Set<Entry<K, V>> entrySet() {

    return optional.orElse(null);
  }

  /**
   * Returns the minimum of the two values. If the values compare as 0, the first is returned.
   *
   * <p>The recommended solution for finding the {@code minimum} of some values depends on the type
   * of your data and the number of elements you have. Read more in the Guava User Guide article on

{* ../../docs_src/query_params/tutorial001.py hl[9] *}

The query is the set of key-value pairs that go after the `?` in a URL, separated by `&` characters.

For example, in the URL:

```
http://127.0.0.1:8000/items/?skip=0&limit=10
```

...the query parameters are:

* `skip`: with a value of `0`
* `limit`: with a value of `10`

As they are part of the URL, they are "naturally" strings.

  protected final boolean supportsValuesHashCode(Map<K, V> map) {
    // get the first non-null value
    Collection<V> values = map.values();
    for (V value : values) {
      if (value != null) {
        try {
          int unused = value.hashCode();
        } catch (Exception e) { // sneaky checked exception
          return false;
        }
        return true;
      }

    protected void checkEsInvalidAggregation(String name, Object value) {
        if (value == null || (value instanceof String && ((String) value).isEmpty())) {
            String msg = "Cannot register null or empty aggregation: name=" + name + " value=" + value;
            throw new InvalidQueryRegisteredException(msg);
        }
    }

        };
        assertEquals(Long.valueOf(31556926000L), yearEnv.getTimeAdjustTimeMillisAsLong());

        // Test maximum long value
        FessEnv.SimpleImpl maxEnv = new FessEnv.SimpleImpl() {
            protected Properties prepareProperties() {
                Properties props = new Properties();
                props.setProperty(FessEnv.TIME_ADJUST_TIME_MILLIS, String.valueOf(Long.MAX_VALUE));
                return props;

    }
  }

  /** getAndUpdate adds given value to current, and returns previous value */
  public void testGetAndUpdateWithSum() {
    AtomicDoubleArray aa = new AtomicDoubleArray(SIZE);
    for (int i : new int[] {0, SIZE - 1}) {
      for (double x : VALUES) {
        for (double y : VALUES) {
          aa.set(i, x);
          double z = aa.getAndUpdate(i, value -> value + y);
          assertBitEquals(x, z);

                .of(stream -> stream.filter(StringUtil::isNotBlank).forEach(s -> {
                    final String[] values = StringUtils.split(s, "=", 2);
                    if (values.length == 2) {
                        mimetypeMap.put(values[0], values[1]);
                    }
                }));
        if (logger.isDebugEnabled()) {
            logger.debug("loaded filetype: {}", mimetypeMap);

            "steps": [
              {
                "color": "green",
                "value": null
              },
              {
                "color": "dark-yellow",
                "value": 75000000
              },
              {
                "color": "dark-red",
                "value": 100000000
              }
            ]
          },
          "unit": "short"