CacheBuilder<Object, Object> builder = CacheBuilder.from(parse("maximumWeight=9000"));
    builder.weigher(constantWeigher(42)).build(CacheLoader.from(Suppliers.ofInstance(null)));
  }

  @SuppressWarnings("ReturnValueIgnored")
  public void testMaximumWeight_withoutWeigher() {
    CacheBuilder<Object, Object> builder = CacheBuilder.from(parse("maximumWeight=9000"));
    assertThrows(

/**
 * An {@link InputStream} that maintains a hash of the data read from it.
 *
 * @author Qian Huang
 * @since 16.0
 */
@Beta
public final class HashingInputStream extends FilterInputStream {
  private final Hasher hasher;

  /**
   * Creates an input stream that hashes using the given {@link HashFunction} and delegates all data
   * read from it to the underlying {@link InputStream}.
   *

            }
        }
        return documentExpires != null ? new Date(documentExpires) : null;
    }

    /**
     * Calculates the expiration time in milliseconds from the current time.
     *
     * @param days the number of days from now when the item should expire
     * @return the expiration time in milliseconds since epoch
     */
    protected long getExpiredTime(final int days) {

     *
     * @return the logger instance
     */
    Logger getLogger();

    /**
     * Extracts the host name from a URL string.
     * Removes protocol and path components to return just the hostname.
     *
     * @param u the URL string to extract host from
     * @return the host name, or empty string if URL is blank, or unknown hostname if parsing fails
     */
    default String getHost(final String u) {

        }
        // Can't map from a raw class to anything other than itself or a wildcard.
        // You can't say "assuming String is Integer".
        // And we don't support "assuming String is T"; user has to say "assuming T is String".
        throw new IllegalArgumentException("No type mapping from " + fromClass + " to " + to);
      }
    }.visit(from);
  }

  /**

    assertEquals("google.com", InternetDomainName.from("www.google.com").parent().toString());

    assertThrows(IllegalStateException.class, () -> InternetDomainName.from("com").parent());
  }

  public void testChild() {
    InternetDomainName domain = InternetDomainName.from("foo.com");

    assertEquals("www.foo.com", domain.child("www").toString());

     *
     * @return the context class loader
     */
    public static ClassLoader getClassLoader() {
        return Thread.currentThread().getContextClassLoader();
    }

    /**
     * Returns the resource from the context class loader.
     *
     * @param path
     *            The resource path. Must not be {@literal null} or empty string.
     * @return The resource {@link URL}
     * @see #getResource(String, String)
     */

   * value.
   */
  @SuppressWarnings("Immutable")
  @LazyInit
  private int registrySuffixIndexCache = SUFFIX_NOT_INITIALIZED;

  /** Constructor used to implement {@link #from(String)}, and from subclasses. */
  InternetDomainName(String name) {
    // Normalize:
    // * ASCII characters to lowercase
    // * All dot-like characters to '.'
    // * Strip trailing '.'

    /** Buffer size used for copying. */
    protected static final int DEFAULT_BUF_SIZE = 4096;

    // ////////////////////////////////////////////////////////////////
    // from InputStream to OutputStream
    //
    /**
     * Copies from an input stream to an output stream.
     * <p>
     * Neither the input stream nor the output stream is closed.
     * </p>
     *

    lockA.lock();
  }

  // Tests transitive deadlock detection.
  public void testDeadlock_threeLocks() {
    // Establish an ordering from lockA -> lockB.
    lockA.lock();
    lockB.lock();
    lockB.unlock();
    lockA.unlock();

    // Establish an ordering from lockB -> lockC.
    lockB.lock();
    lockC.lock();
    lockB.unlock();

    // lockC -> lockA should fail.