// TODO(cpovirk): enable when ready (apparently after a change to our GWT emulation)
  public void xtestInitialCapacity_setTwice() {
    MapMaker maker = new MapMaker().initialCapacity(16);
    try {
      // even to the same value is not allowed
      maker.initialCapacity(16);
      fail();
    } catch (IllegalStateException expected) {
    }
  }

  public void testReturnsPlainConcurrentHashMapWhenPossible() {

  private Absent() {}

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

  @Override
  public T get() {
    throw new IllegalStateException("Optional.get() cannot be called on an absent value");
  }

  @Override
  public T or(T defaultValue) {
    return checkNotNull(defaultValue, "use Optional.orNull() instead of Optional.or(null)");
  }

  @SuppressWarnings("unchecked") // safe covariant cast

          <deprecated>deprecated-parameter</deprecated>
          <since>3.0.0</since>
        </parameter>
      </parameters>
      <configuration>
        <finalName implementation="java.lang.String" default-value="${project.build.finalName}">${jar.finalName}</finalName>
      </configuration>
      <requirements>
        <requirement>
          <role>org.codehaus.plexus.archiver.Archiver</role>
          <role-hint>jar</role-hint>

    private static final NamedWriteableRegistry REGISTRY = new NamedWriteableRegistry(
        List.of(new NamedWriteableRegistry.Entry(InternalAggregation.class, StringTerms.NAME, StringTerms::new))
    );
    @Param(value = { "1000" })
    private int buckets;

    private DelayableWriteable<InternalAggregations> results;

    @Setup
    public void initResults() {

 *
 * <p>Note to maintainers: This implementation relies on signed arithmetic being bit-wise equivalent
 * to unsigned arithmetic in all cases except:
 *
 * <ul>
 *   <li>comparisons (signed values can be negative)
 *   <li>division (avoided here)
 *   <li>shifting (right shift must be unsigned)
 * </ul>
 *
 * @author Kyle Maddison
 * @author Geoff Pike
 */

        public byte revision;
        /** The number of sub-authorities in the SID */
        public byte sub_authority_count;
        /** The identifier authority value (6 bytes) */
        public byte[] identifier_authority;
        /** The array of sub-authority values */
        public int[] sub_authority;

        @Override
        public void encode(NdrBuffer _dst) throws NdrException {
            _dst.align(4);

        // Decode directory-specific data if present
        if (length > 24 + getStandardLeaseSize()) {
            int scopeOrdinal = SMBUtil.readInt4(buffer, dataOffset);
            this.cacheScope = DirectoryCacheScope.values()[scopeOrdinal];
            dataOffset += 4;

            this.maxCacheAge = SMBUtil.readInt8(buffer, dataOffset);
            dataOffset += 8;

            int flags = SMBUtil.readInt4(buffer, dataOffset);

```Python
old_dict = {
    "old key": "old value",
    "second old key": "second old value",
}
new_dict = {**old_dict, "new key": "new value"}
```

Here, `new_dict` will contain all the key-value pairs from `old_dict` plus the new key-value pair:

```Python
{
    "old key": "old value",
    "second old key": "second old value",
    "new key": "new value",
}
```

 * @param <N> Node parameter type
 * @param <E> Edge parameter type
 */
abstract class AbstractUndirectedNetworkConnections<N, E> implements NetworkConnections<N, E> {
  /** Keys are edges incident to the origin node, values are the node at the other end. */
  final Map<E, N> incidentEdgeMap;

  AbstractUndirectedNetworkConnections(Map<E, N> incidentEdgeMap) {
    this.incidentEdgeMap = checkNotNull(incidentEdgeMap);
  }

  @Override

    assertEquals(ImmutableSet.of(), INSTANCE.rowKeySet());
  }

  public void testRowMap() {
    assertEquals(ImmutableMap.of(), INSTANCE.rowMap());
  }

  public void testValues() {
    assertTrue(INSTANCE.values().isEmpty());
  }