throw new NumberFormatException();
    }
    int octet = 0;
    for (int i = start; i < end; i++) {
      octet *= 10;
      int digit = Character.digit(ipString.charAt(i), 10);
      if (digit < 0) {
        throw new NumberFormatException();
      }
      octet += digit;
    }
    if (octet > 255) {
      throw new NumberFormatException();
    }
    return (byte) octet;
  }

    /**
     * ISO 8601 extended UTC format: yyyy-MM-dd'T'HH:mm:ss.SSS'Z'
     */
    public static final String DATE_FORMAT_ISO_8601_EXTEND_UTC = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'";

    /**
     * Digit only date format: yyyyMMddHHmmss
     */
    public static final String DATE_FORMAT_DIGIT_ONLY = "yyyyMMddHHmmss";

    /**
     * Do not instantiate.
     */
    protected CoreLibConstants() {
    }

    return Digit.INSTANCE;
  }

  /**
   * Determines whether a character is a BMP digit according to {@linkplain Character#isDigit(char)
   * Java's definition}. If you only care to match ASCII digits, you can use {@code inRange('0',
   * '9')}.
   *
   * @deprecated Many digits are supplementary characters; see the class documentation.
   * @since 19.0 (since 1.0 as constant {@code JAVA_DIGIT})
   */
  @Deprecated

    }

    /*
     * Note that we allow (in contravention of a strict interpretation of the relevant RFCs) domain
     * parts other than the last may begin with a digit (for example, "3com.com"). It's important to
     * disallow an initial digit in the last part; it's the only thing that stops an IPv4 numeric
     * address like 127.0.0.1 from looking like a valid domain name.
     */

package okhttp3.internal.http

import java.text.DateFormat
import java.text.ParsePosition
import java.text.SimpleDateFormat
import java.util.Date
import java.util.Locale
import okhttp3.internal.UTC

/** The last four-digit year: "Fri, 31 Dec 9999 23:59:59 GMT". */
internal const val MAX_DATE = 253402300799999L

/**
 * Most websites serve cookies in the blessed format. Eagerly create the parser to ensure such
 * cookies are on the fast path.

        assertFalse(UniAddress.isAllDigits(nonNumeric));
    }

    @Test
    void isAllDigitsHandlesEmptyString() {
        // Empty string technically has no non-digit characters, so it returns true
        assertTrue(UniAddress.isAllDigits(""), "isAllDigits should return true for empty string (no non-digits)");
    }

 * C++ implementation</a>.
 *
 * @author Austin Appleby
 * @author Dimitris Andreou
 */
@Immutable
@SuppressWarnings("IdentifierName") // the best we could do for adjacent digit blocks
final class Murmur3_128HashFunction extends AbstractHashFunction implements Serializable {
  static final HashFunction MURMUR3_128 = new Murmur3_128HashFunction(0);

    <!-- Each java file has only one outer class -->
    <module name="OneTopLevelClass" />

    <!-- The suffix L is preferred, because the letter l (ell) is often
      hard to distinguish from the digit 1 (one). -->
    <module name="UpperEll" />

    <module name="EqualsHashCode" />

    <!-- Checks that the order of modifiers conforms to the suggestions in the

public class Hexdump {

    /**
     * Default constructor.
     */
    public Hexdump() {
        // Utility class - no instance variables to initialize
    }

    /**
     * Array of hexadecimal digit characters used for converting binary data to hex representation.
     */
    public static final char[] HEX_DIGITS = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };

    /**

            value: String,
          ) = writer.writeUtf8(value)
        },
    )

  /**
   * A timestamp like "191216030210Z" or "191215190210-0800" for 2019-12-15T19:02:10-08:00. The
   * cutoff of the 2-digit year is 1950-01-01T00:00:00Z.
   */
  val UTC_TIME =
    BasicDerAdapter(
      name = "UTC TIME",
      tagClass = DerHeader.TAG_CLASS_UNIVERSAL,
      tag = 23L,
      codec =