*       assertions are for. Note that assertions are not enabled by default; they are essentially
 *       considered "compiled comments."
 *   <li>An explicit {@code if/throw} (as illustrated below) is always acceptable; we still
 *       recommend using our {@link VerifyException} exception type. Throwing a plain {@link
 *       RuntimeException} is frowned upon.

        new AbstractLoadingCache<Object, Object>() {
          @Override
          public Object get(Object key) throws ExecutionException {
            Object v = valueRef.get();
            if (v == null) {
              throw new ExecutionException(cause);
            }
            return v;
          }

          @Override
          public @Nullable Object getIfPresent(Object key) {
            return valueRef.get();
          }

          }
      }
      else -> {
        if (reservedFlag1) throw ProtocolException("Unexpected rsv1 flag")
      }
    }

    val reservedFlag2 = b0 and B0_FLAG_RSV2 != 0
    if (reservedFlag2) throw ProtocolException("Unexpected rsv2 flag")

    val reservedFlag3 = b0 and B0_FLAG_RSV3 != 0
    if (reservedFlag3) throw ProtocolException("Unexpected rsv3 flag")

    val b1 = source.readByte() and 0xff

        assertArgumentNotNull("handler", handler);

        try {
            parser.parse(inputSource, handler);
        } catch (final SAXException e) {
            throw new SAXRuntimeException(e);
        } catch (final IOException e) {
            throw new IORuntimeException(e);
        }
    }

    /**
     * {@link XMLReader}の基本となる実装に特定のプロパティを設定します。
     *
     * @param parser

    registry.register(o1);

    Iterator<Subscriber> three = registry.getSubscribers("");
    assertEquals(s1, one.next().target);
    assertFalse(one.hasNext());

    assertEquals(s1, three.next().target);
    assertEquals(s2, three.next().target);
    assertEquals(o1, three.next().target);
    assertFalse(three.hasNext());

    three = registry.getSubscribers("");

    registry.unregister(s2);

        ImmutableMap.of("one", 1, "two", 2, "three", 3), "one", 1, "two", 2, "three", 3);
    assertMapEquals(
        ImmutableMap.of("one", 1, "two", 2, "three", 3, "four", 4),
        "one",
        1,
        "two",
        2,
        "three",
        3,
        "four",
        4);
    assertMapEquals(
        ImmutableMap.of("one", 1, "two", 2, "three", 3, "four", 4, "five", 5),
        "one",

  @Override
  @DoNotCall("Always throws UnsupportedOperationException")
  @CheckForNull
  public final E pollFirst() {
    throw new UnsupportedOperationException();
  }

  /**
   * Guaranteed to throw an exception and leave the set unmodified.
   *
   * @since 12.0
   * @throws UnsupportedOperationException always
   * @deprecated Unsupported operation.
   */
  @CanIgnoreReturnValue

        if ( str == null ) {
            return new byte[0];
        }
        try {
            return str.getBytes(config.getOemEncoding());
        }
        catch ( UnsupportedEncodingException e ) {
            throw new RuntimeCIFSException("Unsupported OEM encoding " + config.getOemEncoding(), e);
        }
    }


    /**
     * @param src
     * @param srcIndex
     * @param len
     * @return decoded string

   * @throws IllegalArgumentException {@inheritDoc}
   */
  @CanIgnoreReturnValue
  @Override
  public int drainTo(Collection<? super E> c) {
    if (c == null) throw new NullPointerException();
    if (c == this) throw new IllegalArgumentException();
    final E[] items = this.items;
    final Monitor monitor = this.monitor;
    monitor.enter();
    try {
      int i = takeIndex;
      int n = 0;

      val privateHost = isPrivateHost(hostname)

      if (privateHost && !resolvePrivateAddresses) {
        throw UnknownHostException("private hosts not resolved")
      }

      if (!privateHost && !resolvePublicAddresses) {
        throw UnknownHostException("public hosts not resolved")
      }
    }

    return lookupHttps(hostname)
  }

  @Throws(UnknownHostException::class)