}

              @Override
              public @Nullable String put(String key, String value) {
                checkNotNull(key);
                return map.put(key, value);
              }
            };
          }
        },
        "HashMap w/out null keys",
        ALLOWS_NULL_VALUES);
  }

  private static Test testsForHashMapNullValuesForbidden() {

        ImmutableSetMultimap.builderWithExpectedKeys(0);
    builder.put("key", "value");
    assertThat(builder.build().entries()).containsExactly(Maps.immutableEntry("key", "value"));
  }

  public void testBuilderWithExpectedKeysPositive() {
    ImmutableSetMultimap.Builder<String, String> builder =
        ImmutableSetMultimap.builderWithExpectedKeys(1);
    builder.put("key", "value");

    int[] entries = requireEntries();
    @Nullable Object[] keys = requireKeys();
    @Nullable Object[] values = requireValues();
    int srcIndex = size() - 1;
    if (dstIndex < srcIndex) {
      // move last entry to deleted spot
      Object key = keys[srcIndex];
      keys[dstIndex] = key;
      values[dstIndex] = values[srcIndex];
      keys[srcIndex] = null;
      values[srcIndex] = null;

      |
      """.trimMargin()
    val pkcs8Pem =
      """
      |-----BEGIN PRIVATE KEY-----
      |MEECAQAwEwYHKoZIzj0CAQYIKoZIzj0DAQcEJzAlAgEBBCA7ODT0xhGSNn4ESj6J
      |lu/GJQZoU9lDrCPeUcQ28tzOWw==
      |-----END PRIVATE KEY-----
      |
      """.trimMargin()
    val bcPkcs8Pem =
      """
      |-----BEGIN PRIVATE KEY-----
      |ME0CAQAwEwYHKoZIzj0CAQYIKoZIzj0DAQcEMzAxAgEBBCA7ODT0xhGSNn4ESj6J

/**
 * {@code ObjectCountLinkedHashMap} is a subclass of {@code ObjectCountHashMap} with insertion
 * iteration order, and uses arrays to store key objects and count values. Comparing to using a
 * traditional {@code LinkedHashMap} implementation which stores keys and count values as map
 * entries, {@code ObjectCountLinkedHashMap} minimizes object allocation and reduces memory
 * footprint.
 */
@GwtCompatible
@NullMarked

        CacheBuilder.newBuilder().maximumSize(0).removalListener(listener).build(identityLoader());
    assertThat(nullCache.size()).isEqualTo(0);
    Object key = new Object();
    assertThat(nullCache.getUnchecked(key)).isSameInstanceAs(key);
    assertThat(listener.getCount()).isEqualTo(1);
    assertThat(nullCache.size()).isEqualTo(0);
    CacheTesting.checkEmpty(nullCache.asMap());
  }

  @J2ktIncompatible

        CacheBuilder.newBuilder().maximumSize(0).removalListener(listener).build(identityLoader());
    assertThat(nullCache.size()).isEqualTo(0);
    Object key = new Object();
    assertThat(nullCache.getUnchecked(key)).isSameInstanceAs(key);
    assertThat(listener.getCount()).isEqualTo(1);
    assertThat(nullCache.size()).isEqualTo(0);
    CacheTesting.checkEmpty(nullCache.asMap());
  }

  @J2ktIncompatible

    return addAndGet(key, 1);
  }

  /**
   * Decrements by one the value currently associated with {@code key}, and returns the new value.
   */
  @CanIgnoreReturnValue
  public long decrementAndGet(K key) {
    return addAndGet(key, -1);
  }

  /**
   * Adds {@code delta} to the value currently associated with {@code key}, and returns the new
   * value.
   */
  @CanIgnoreReturnValue

 *
 * See https://stackoverflow.com/questions/61929216/how-to-log-tlsv1-3-keys-in-jsse-for-wireshark-to-decode-traffic
 *
 * Steps to run in your own code
 *
 * 1. In your main method `WireSharkListenerFactory.register()`
 * 2. Create Listener factory `val eventListenerFactory = WireSharkListenerFactory(
logFile = File("/tmp/key.log"), tlsVersions = tlsVersions, launch = launch)`

    @Override
    public Collection<UnhashableObject> create(UnhashableObject[] elements) {
      ImmutableMap.Builder<Integer, UnhashableObject> builder = ImmutableMap.builder();
      int key = 1;
      for (UnhashableObject value : elements) {
        builder.put(key++, value);
      }
      return builder.buildOrThrow().values();
    }
  }

  public static class ImmutableMapKeyListGenerator extends TestStringListGenerator {
    @Override