}

    /**
     * Returns the hash code of the specified object, or 0 if the object is null.
     *
     * @param obj the object
     * @return the hash code or 0
     */
    public static int hashCode(final Object obj) {
        return obj == null ? 0 : obj.hashCode();
    }

    /**
     * Returns the string representation of the specified object, or null if the object is null.
     *

     * If the ID list is null, returns all available configurations.
     *
     * @param idList the list of configuration IDs to retrieve, or null for all configurations
     * @return a list of WebConfig objects with the specified IDs
     */
    public List<WebConfig> getWebConfigListByIds(final List<String> idList) {
        if (idList == null) {
            return getAllWebConfigList();
        }

  }

  // Regular instance methods

  @Override
  public abstract int compare(@ParametricNullness T left, @ParametricNullness T right);

  /**
   * Returns the least of the specified values according to this ordering. If there are multiple
   * least values, the first of those is returned. The iterator will be left exhausted: its {@code
   * hasNext()} method will return {@code false}.
   *

     *
     * @return the headers.
     */
    public Map<String, List<String>> getHeaders() {
        return headers;
    }

    /**
     * Gets the values of the specified header.
     *
     * @param name the name of the header.
     * @return an array of header values, or an empty array if the header does not exist.
     */
    public String[] getHeaderValues(final String name) {

/** Utility method to parse the system class path. */
@NullUnmarked
@GwtIncompatible
@J2ktIncompatible
final class ClassPathUtil {
  private ClassPathUtil() {}

  /**
   * Returns the URLs in the class path specified by the {@code java.class.path} {@linkplain
   * System#getProperty system property}.
   */
  // TODO(b/65488446): Make this a public API.
  static URL[] parseJavaClassPath() {

 */
final class StandardMutableGraph<N> extends ForwardingGraph<N> implements MutableGraph<N> {
  private final MutableValueGraph<N, Presence> backingValueGraph;

  /** Constructs a {@link MutableGraph} with the properties specified in {@code builder}. */
  StandardMutableGraph(AbstractGraphBuilder<? super N> builder) {
    this.backingValueGraph = new StandardMutableValueGraph<>(builder);
  }

  @Override
  BaseGraph<N> delegate() {

  }

  /**
   * Returns the {@code int} value that is equal to {@code x} rounded with the specified rounding
   * mode, if possible.
   *
   * @throws ArithmeticException if
   *     <ul>
   *       <li>{@code x} is infinite or NaN
   *       <li>{@code x}, after being rounded to a mathematical integer using the specified rounding
   *           mode, is either less than {@code Integer.MIN_VALUE} or greater than {@code

          (TypeToken<? extends Throwable>) TypeToken.of(type);
      builder.add(exceptionType);
    }
    return builder.build();
  }

  /**
   * Explicitly specifies the return type of this {@code Invokable}. For example:
   *
   * {@snippet :
   * Method factoryMethod = Person.class.getMethod("create");

    }
  }

  public void testNoNullValues() {
    for (StandardSystemProperty property : StandardSystemProperty.values()) {
      // Even though the contract in System.getProperties() specifies that a value will exist for
      // all of the listed keys, for some reason the "java.compiler" key returns null in some JVMs.
      if (property == JAVA_COMPILER) {
        continue;
      }
      // Removed in Java 9:

   * @return a hash code for the value
   */
  @InlineMe(replacement = "Float.hashCode(value)")
  public static int hashCode(float value) {
    return Float.hashCode(value);
  }

  /**
   * Compares the two specified {@code float} values using {@link Float#compare(float, float)}. You
   * may prefer to invoke that method directly; this method exists only for consistency with the
   * other utilities in this package.
   *