* Number value = first.or(0.5); // fine
   * }
   *
   * <p><b>Comparison to {@code java.util.Optional}:</b> this method is similar to Java 8's {@code
   * Optional.orElse}, but will not accept {@code null} as a {@code defaultValue} ({@link #orNull}
   * must be used instead). As a result, the value returned by this method is guaranteed non-null,
   * which is not the case for the {@code java.util} equivalent.
   */

   * Preconditions.checkNotNull.
   *
   * (verifyNotNull has many fewer "problem" callers, so we could try to be stricter. On the other
   * hand, verifyNotNull arguably has more reason to accept nullable arguments in the first
   * place....)
   */

  /**
   * Ensures that {@code reference} is non-null, throwing a {@code VerifyException} with a default
   * message otherwise.
   *

    @Override
    public void forEach(Consumer<? super V> action) {
      checkNotNull(action);
      for (ValueEntry<K, V> entry = firstEntry; entry != null; entry = entry.successorInValueSet) {
        action.accept(entry.getValue());
      }
    }

    @Override
    public int size() {
      return size;
    }

    @Override
    public boolean contains(@Nullable Object o) {

        ).stream()
            .map(version -> new UnreleasedVersionInfo(version, getBranchFor(version), getGradleProjectPathFor(version)))
            .collect(Collectors.toList());

        collect.forEach(consumer::accept);
    }

    private String getGradleProjectPathFor(Version version) {
        // We have Gradle projects set up to check out and build unreleased versions based on the our branching

    }

    @Override
    public E aboveSamplesGreater() {
      throw new UnsupportedOperationException();
    }
  }

  /*
   * TODO(cpovirk): surely we can find a less ugly solution than a class that accepts 3 parameters,
   * exposes as many getters, does work in the constructor, and has both a superclass and a subclass
   */
  public static class SortedMapSubmapTestMapGenerator<

    }

    @Test
    public void test_normalizeCanonicalUrl_withBrackets() throws Exception {
        final FessXpathTransformer transformer = new FessXpathTransformer();
        // topic/2732: java.net.URL accepts brackets in paths unlike java.net.URI
        final String value = transformer.normalizeCanonicalUrl("http://example.com/", "/path/[id]/page");
        assertEquals("http://example.com/path/[id]/page", value);
    }

            capturedSessionId = sessionId;
            capturedCmdList = new ArrayList<>(cmdList);

            ProcessBuilder pb = new ProcessBuilder(cmdList);
            pbConsumer.accept(pb);
            capturedDirectory = pb.directory();
            capturedEnvironment = new HashMap<>(pb.environment());

            return new TestJobProcess(exitValue, processOutput);
        }
    }

    void testConstructorWithNullDelegate() {
        // When & Then
        assertDoesNotThrow(() -> {
            new DelegatingConfiguration(null);
        }, "Constructor should accept null delegate (though it would cause NPE on use)");
    }

    @Test
    @DisplayName("Constructor should store delegate reference")
    void testConstructorStoresDelegate() {
        // Given

     *
     * 1. We'll want to use something like @PolyNull once we can make that work for the various
     * platforms we target.
     *
     * 2. Kotlin's Map type has a getOrDefault method that accepts and returns a "plain V," in
     * contrast to the "V?" type that we're using. As a result, Kotlin sees a conflict between the
     * nullness annotations in ImmutableMap and those in its own Map type. In response, it considers

        assertNotNull(validHost);

        // Invalid entries should not be found or may have incorrect parsing
        // Note: The actual Lmhosts parser may accept "192.168.1" and parse it differently
        // than expected, so we're not asserting null for HOST1
    }

    @Test
    void testPopulateWithLongHostname() throws Exception {