@Test fun pushPromiseThenContinuation() {
    val expectedPromisedStreamId = 11
    val pushPromise = largeHeaders()

    // Decoding the first header will cross frame boundaries.
    val headerBlock = literalHeaders(pushPromise)

    // Write the first headers frame.
    writeMedium(frame, Http2.INITIAL_MAX_FRAME_SIZE)
    frame.writeByte(Http2.TYPE_PUSH_PROMISE)
    frame.writeByte(FLAG_NONE)

        val service = gradle.sharedServices.registerIfAbsent("buildEnvironmentService", BuildEnvironmentService::class) {
            check(project.path == ":") {
                // We rely on the fact that root is configured first
                "BuildEnvironmentService should be registered by the root"
            }
            parameters.rootProjectDir = this@with
            parameters.rootProjectBuildDir = project.layout.buildDirectory
        }

        // So we need to write data at bufferIndex=8

        // Write first FileBothDirectoryInfo at bufferIndex=8
        SMBUtil.writeInt4(104, buffer, 8); // NextEntryOffset to second entry
        SMBUtil.writeInt4(0, buffer, 12); // FileIndex
        // ... rest of first entry fields (zeros for simplicity)
        for (int i = 16; i < 102; i++) {
            buffer[i] = 0;
        }

                return new AbstractMap.SimpleEntry<>(key, replacedAccessor);
            });
    }

    private static <T> Map<AccessorKey, T> diff(Map<AccessorKey, T> first, Map<AccessorKey, T> second) {
        return first.entrySet().stream()
            .filter(e -> !second.containsKey(e.getKey()))
            .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
    }

			w.streamErr = nextBlock(&current)
			// Prepare for next
			current.n++
			buf.Reset()
			block.Reset(buf)
			current.First = ""
		}
		for o := range in {
			if len(o.name) == 0 || w.streamErr != nil {
				continue
			}
			if current.First == "" {
				current.First = o.name
			}

			if n >= w.blockEntries-1 {
				finishBlock()
				n = 0
			}
			n++

 */
@GwtCompatible
public abstract class AbstractSequentialIterator<T> extends UnmodifiableIterator<T> {
  private @Nullable T nextOrNull;

  /**
   * Creates a new iterator with the given first element, or, if {@code firstOrNull} is null,
   * creates a new empty iterator.
   */
  protected AbstractSequentialIterator(@Nullable T firstOrNull) {
    this.nextOrNull = firstOrNull;
  }

  /**

        list.add("first");
        list.add(null);
        list.add("third");
        final byte[] binary = SerializeUtil.fromObjectToBinary(list);
        @SuppressWarnings("unchecked")
        final List<String> result = (List<String>) SerializeUtil.fromBinaryToObject(binary);
        assertEquals(3, result.size());
        assertEquals("first", result.get(0));
        assertNull(result.get(1));

  }

  private static final class ConverterComposition<A, B, C> extends Converter<A, C>
      implements Serializable {
    final Converter<A, B> first;
    final Converter<B, C> second;

    ConverterComposition(Converter<A, B> first, Converter<B, C> second) {
      this.first = first;
      this.second = second;
    }

    /*
     * These gymnastics are a little confusing. Basically this class has neither legacy nor

        if (!projects.isEmpty()) {
            MavenProject first = projects.get(0);
            this.currentProject = ThreadLocal.withInitial(() -> first);
            this.topLevelProject = projects.stream()
                    .filter(project -> project.isExecutionRoot())
                    .findFirst()
                    .orElse(first);
        } else {
            this.currentProject = new ThreadLocal<>();

    void requestSecurityMode() {
        // Not enforced, server does not require -> enabled only
        Smb2NegotiateResponse first = mock(Smb2NegotiateResponse.class);
        when(first.isSigningRequired()).thenReturn(false);
        assertEquals(Smb2Constants.SMB2_NEGOTIATE_SIGNING_ENABLED, transport.getRequestSecurityMode(first));

        // Enforced -> required+enabled