val addressF = decodeIpv6("0:0:0:0:0:ffff:7f00:1")!!
    assertThat(canonicalizeInetAddress(addressF)).isEqualTo(addressB)

    val addressG = decodeIpv6("0:0:0:0:0:ffff:c0a8:1")!!
    assertThat(canonicalizeInetAddress(addressG)).isEqualTo(addressC)
  }

  @Test
  fun canonicalizeInetAddressMapped() {
    val addressAIpv6 = decodeIpv6("0:0:0:0:0:ffff:7f00:1")!!
    val addressAIpv4 = byteArrayOf(127, 0, 0, 1)

            UUID uuid = new UUID(rpcUuid);

            // Act
            String result = uuid.toString();

            // Assert
            assertEquals("FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF", result, "toString() should correctly format maximum value UUID");
        }
    }

    @Nested
    @DisplayName("Edge Case Tests")
    class EdgeCaseTests {

        @Test

    assertThat("FF01::101".canParseAsIpAddress()).isTrue()
    assertThat("0:0:0:0:0:0:13.1.68.3".canParseAsIpAddress()).isTrue()
    assertThat("0:0:0:0:0:FFFF:129.144.52.38".canParseAsIpAddress()).isTrue()
    assertThat("::13.1.68.3".canParseAsIpAddress()).isTrue()
    assertThat("::FFFF:129.144.52.38".canParseAsIpAddress()).isTrue()

    // Hostnames
    assertThat("go".canParseAsIpAddress()).isFalse()

        assertEquals("34", Hexdump.toHexString(0x1234, 2));

        // Test negative values (treated as unsigned)
        assertEquals("FFFFFFFF", Hexdump.toHexString(-1, 8));
        assertEquals("FFFF", Hexdump.toHexString(-1, 4));
        assertEquals("FF", Hexdump.toHexString(-1, 2));
    }

    @Test
    @DisplayName("Should convert long to hex string with specified size")
    void testToHexStringLong() {

import org.junit.jupiter.api.Assumptions.assumeTrue

object TestUtil {
  @JvmField
  val UNREACHABLE_ADDRESS_IPV4 = InetSocketAddress("198.51.100.1", 8080)
  val UNREACHABLE_ADDRESS_IPV6 = InetSocketAddress("::ffff:198.51.100.1", 8080)

  /** See `org.graalvm.nativeimage.ImageInfo`. */
  @JvmStatic val isGraalVmImage = System.getProperty("org.graalvm.nativeimage.imagecode") != null

  @JvmStatic

          .that(Ints.tryParse(Long.toString((long) LEAST - 1, radix), radix))
          .isNull();
    }
    assertWithMessage("Hex string and dec parm").that(Ints.tryParse("FFFF", 10)).isNull();
    assertWithMessage("Mixed hex case").that((int) Ints.tryParse("ffFF", 16)).isEqualTo(65535);
  }

  /**
   * Encodes an integer as a string with given radix, then uses {@link Ints#tryParse(String, int)}

  }

  /**
   * Evaluates whether the argument is an "IPv4 mapped" IPv6 address.
   *
   * <p>An "IPv4 mapped" address is anything in the range ::ffff:0:0/96 (sometimes written as
   * ::ffff:0.0.0.0/96), with the last 32 bits interpreted as an IPv4 address.
   *
   * <p>For more on IPv4 mapped addresses see section 2.5.5.2 of <a target="_parent"

          .isNull();
    }
    assertWithMessage("Hex string and dec parm").that(Longs.tryParse("FFFF", 10)).isNull();
    assertWithMessage("Mixed hex case")
        .that(Longs.tryParse("ffFF", 16).longValue())
        .isEqualTo(65535);
  }

  /**
   * Encodes the long as a string with given radix, then uses {@link Longs#tryParse(String, int)} to

          .that(Ints.tryParse(Long.toString((long) LEAST - 1, radix), radix))
          .isNull();
    }
    assertWithMessage("Hex string and dec parm").that(Ints.tryParse("FFFF", 10)).isNull();
    assertWithMessage("Mixed hex case").that((int) Ints.tryParse("ffFF", 16)).isEqualTo(65535);
  }

  /**
   * Encodes an integer as a string with given radix, then uses {@link Ints#tryParse(String, int)}

  }

  /**
   * Evaluates whether the argument is an "IPv4 mapped" IPv6 address.
   *
   * <p>An "IPv4 mapped" address is anything in the range ::ffff:0:0/96 (sometimes written as
   * ::ffff:0.0.0.0/96), with the last 32 bits interpreted as an IPv4 address.
   *
   * <p>For more on IPv4 mapped addresses see section 2.5.5.2 of <a target="_parent"