exit 1
  elif command -v sha256sum >/dev/null; then
    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | sha256sum -c >/dev/null 2>&1; then
      distributionSha256Result=true
    fi
  elif command -v shasum >/dev/null; then
    if echo "$distributionSha256Sum  $TMP_DOWNLOAD_DIR/$distributionUrlName" | shasum -a 256 -c >/dev/null 2>&1; then
      distributionSha256Result=true
    fi
  else

        .onRequestStart(CloseSocket())
        .build(),
    )
    val webSocket = newWebSocket()
    clientListener.assertFailure(
      101,
      null,
      ProtocolException::class.java,
      "Expected 'Connection' header value 'Upgrade' but was 'null'",
    )
    webSocket.cancel()
  }

  @Test
  @Throws(IOException::class)
  fun wrongConnectionHeader() {
    webServer.enqueue(

     *
     * @param projectDependencyGraph The project dependency graph to create a sub view from, must not be {@code null}.
     * @param whiteList The projects on which the dependency view should focus, must not be {@code null}.
     */
    FilteredProjectDependencyGraph(
            ProjectDependencyGraph projectDependencyGraph, Collection<? extends MavenProject> whiteList) {

    while (true) {
      AtomicInteger existingCounter = safeGet(countMap, element);
      if (existingCounter == null) {
        existingCounter = countMap.putIfAbsent(element, new AtomicInteger(occurrences));
        if (existingCounter == null) {
          return 0;
        }
        // existingCounter != null: fall through to operate against the existing AtomicInteger
      }

      while (true) {

  fun assertClose() {
    nextEvent() as Closed
  }

  fun assertFailure(
    message: String?,
    code: Int? = null,
  ) {
    val event = nextEvent() as Failure
    if (code != null) {
      assertThat(event.response?.code).isEqualTo(code)
    }
    if (message != null) {
      assertThat(event.message).isEqualTo(message)
    } else {
      assertThat(event.t).isNull()
    }
  }

    /**
     * Creates an artifact.
     *
     * @param request the request holding artifact creation parameters
     * @return an {@code Artifact}, never {@code null}
     * @throws IllegalArgumentException if {@code request} is null or {@code request.session} is null or invalid
     */
    @Nonnull
    Artifact create(@Nonnull ArtifactFactoryRequest request);

    @Nonnull
    default Artifact create(

    }

    @Test
    void testNullValues() {
        RequestTrace trace = new RequestTrace(null, null, null);
        assertNull(trace.context());
        assertNull(trace.parent());
        assertNull(trace.data());
    }

    @Test
    void testChainedTraces() {
        RequestTrace root = new RequestTrace("root", null, "root-data");
        RequestTrace level1 = new RequestTrace("level1", root, "level1-data");

   * thus its value may be legitimately {@code null}.)
   */
  @ParametricNullness
  @SuppressWarnings("nullness")
  static <T extends @Nullable Object> T uncheckedCastNullableTToT(@Nullable T t) {
    return t;
  }

  /** Returns {@code null} as any type, even one that does not include {@code null}. */
  @SuppressWarnings({"nullness", "TypeParameterUnusedInFormals", "ReturnMissingNullable"})

   *
   * <p>{@code putInstance(Foo.class, foo)} is equivalent to {@code
   * putInstance(TypeToken.of(Foo.class), foo)}.
   *
   * @return the value previously associated with this class (possibly {@code null}), or {@code
   *     null} if there was no previous entry.
   */
  @CanIgnoreReturnValue
  <T extends B> @Nullable T putInstance(Class<@NonNull T> type, @ParametricNullness T value);

  /**

   * thus its value may be legitimately {@code null}.)
   */
  @ParametricNullness
  @SuppressWarnings("nullness")
  static <T extends @Nullable Object> T uncheckedCastNullableTToT(@Nullable T t) {
    return t;
  }

  /** Returns {@code null} as any type, even one that does not include {@code null}. */
  @SuppressWarnings({"nullness", "TypeParameterUnusedInFormals", "ReturnMissingNullable"})