Map<String, Object> responseDataMap = new HashMap<>();
        responseDataMap.put("b", "B1");

        indexUpdateCallback.mergeResponseData(dataMap, responseDataMap);

        assertEquals(2, dataMap.size());
        assertEquals("A0", dataMap.get("a"));
        assertEquals("B1", dataMap.get("b"));
    }

    /** Case 2: Key conflict (without .overwrite) → Overwrite with value from responseDataMap */
    @Test

          if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);

          Headers responseHeaders = response.headers();
          for (int i = 0, size = responseHeaders.size(); i < size; i++) {
            System.out.println(responseHeaders.name(i) + ": " + responseHeaders.value(i));
          }

          System.out.println(responseBody.string());
        }
      }
    });
  }

/**
 * Test iteration speed at various size for {@link Set} instances.
 *
 * @author Christopher Swenson
 */
@NullUnmarked
public class SetIterationBenchmark {
  @Param({
    "3", "6", "11", "23", "45", "91", "181", "362", "724", "1448", "2896", "5793", "11585", "23170",
    "46341", "92682", "185364", "370728", "741455", "1482910", "2965821", "5931642"
  })
  private int size;

  // "" means no fixed seed
  @Param("1234")

    resetContainer(mapEntry(k0(), v0()), mapEntry(k0(), v1()), mapEntry(k1(), v0()));
    Multiset<K> keys = multimap().keys();
    assertEquals(2, keys.count(k0()));
    assertEquals(1, keys.count(k1()));
    assertEquals(3, keys.size());
    assertContainsAllOf(keys, k0(), k1());
    assertContainsAllOf(
        keys.entrySet(), Multisets.immutableEntry(k0(), 2), Multisets.immutableEntry(k1(), 1));
  }

  @MapFeature.Require(ALLOWS_NULL_KEY_QUERIES)

 *
 * @param list the list to split, must be ordered by size desc
 * @param toIntFunction the function used to map the element to its "size"
 * @param largeElementSplitFunction the function used to further split the large element into smaller pieces
 * @param smallElementAggregateFunction the function used to aggregate tiny elements into a large bucket
 * @param expectedBucketNumber the return value's size should be expectedBucketNumber
 */

    } else {
      assertNull(multimap().asMap().get(key));
    }

    assertEquals(values.size(), multimap().get(key).size());
    assertEquals(values.size() > 0, multimap().containsKey(key));
    assertEquals(values.size() > 0, multimap().keySet().contains(key));
    assertEquals(values.size() > 0, multimap().keys().contains(key));
  }

        if (synonymItemList == null) {
            reload(null);
        }

        if (offset >= synonymItemList.size() || offset < 0) {
            return new PagingList<>(Collections.<SynonymItem> emptyList(), offset, size, synonymItemList.size());
        }

        int toIndex = offset + size;
        if (toIndex > synonymItemList.size()) {

   * a size of 0 despite actually having content when read).
   *
   * <p>In either case, for mutable sources such as files, a subsequent read may return a different
   * number of bytes if the contents are changed.
   *
   * @throws IOException if an I/O error occurs while reading the size of this source
   */
  public long size() throws IOException {

   */
  static <T extends @Nullable Object> T[] toArrayImpl(Collection<?> c, T[] array) {
    int size = c.size();
    if (array.length < size) {
      array = newArray(array, size);
    }
    fillArray(c, array);
    if (array.length > size) {
      @Nullable Object[] unsoundlyCovariantArray = array;
      unsoundlyCovariantArray[size] = null;
    }
    return array;
  }

  /**

    assertEquals(underlying.size(), map.size());

    underlying.put("d", 4);
    assertEquals(underlying.size(), map.size());
    assertThat(map.get("d")).isEqualTo("4");

    underlying.remove("c");
    assertEquals(underlying.size(), map.size());
    assertFalse(map.containsKey("c"));

    underlying.clear();
    assertEquals(underlying.size(), map.size());
  }