.testEquals();
  }

  public void testRequireBracketsForIPv6() {
    // Bracketed IPv6 works fine.
    assertEquals("::1", HostAndPort.fromString("[::1]").requireBracketsForIPv6().getHost());
    assertEquals("::1", HostAndPort.fromString("[::1]:80").requireBracketsForIPv6().getHost());
    // Non-bracketed non-IPv6 works fine.
    assertEquals("x", HostAndPort.fromString("x").requireBracketsForIPv6().getHost());

#!/bin/bash

sudo sysctl net.ipv6.conf.all.disable_ipv6=0

remote=$(git remote get-url upstream)
if test "$remote" != "******@****.***:minio/minio.git"; then
	echo "Script requires that the 'upstream' remote is set to ******@****.***:minio/minio.git"
	exit 1
fi

git remote update upstream && git checkout master && git rebase upstream/master

release=$(git describe --abbrev=0 --tags)

docker buildx build --push --no-cache \

  @Before
  fun init() {
    assumeTrue("Supported on API 29+", Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q)

    client =
      OkHttpClient.Builder()
        .dns(AsyncDns.toDns(AndroidAsyncDns.IPv4, AndroidAsyncDns.IPv6))
        .sslSocketFactory(localhost.sslSocketFactory(), localhost.trustManager)
        .build()

    serverRule.server.useHttps(localhost.sslSocketFactory())
  }

  @Test

  companion object {
    @RequiresApi(Build.VERSION_CODES.Q)
    val IPv4 = AndroidAsyncDns(dnsClass = AsyncDns.DnsClass.IPV4)

    @RequiresApi(Build.VERSION_CODES.Q)
    val IPv6 = AndroidAsyncDns(dnsClass = AsyncDns.DnsClass.IPV6)
  }

    assertThat(recordedRequest.requestUrl!!.host).isEqualTo("header-host")
    assertThat(recordedRequest.handshakeServerNames).containsExactly("url-host.com")
  }

  /** No SNI for literal IPv6 addresses. */
  @Test
  fun ipv6() {
    val recordedRequest = requestToHostnameViaProxy("2607:f8b0:400b:804::200e")
    assertThat(recordedRequest.requestUrl!!.host).isEqualTo("2607:f8b0:400b:804::200e")

	"github.com/minio/minio/internal/config"
	"github.com/minio/minio/internal/logger"
	xnet "github.com/minio/pkg/v3/net"
)

var (
	// IPv4 addresses of localhost.
	localIP4 = mustGetLocalIP4()

	// IPv6 addresses of localhost.
	localIP6 = mustGetLocalIP6()

	// List of all local loopback addresses.
	localLoopbacks = mustGetLocalLoopbacks()
)

  @Test
  fun testToCanonicalHost() {
    // IPv4
    assertThat("127.0.0.1".toCanonicalHost()).isEqualTo("127.0.0.1")
    assertThat("1.2.3.4".toCanonicalHost()).isEqualTo("1.2.3.4")

    // IPv6
    assertThat("::1".toCanonicalHost()).isEqualTo("::1")
    assertThat("2001:db8::1".toCanonicalHost()).isEqualTo("2001:db8::1")
    assertThat("::ffff:192.168.0.1".toCanonicalHost()).isEqualTo("192.168.0.1")
    assertThat(

 * Prefer to alternate IP addresses from different address families, (IPv6 / IPv4), starting with IPv6.
 * Don't start a new attempt until 250 ms after the most recent attempt was started.
 * Keep whichever TCP connection succeeds first and cancel all the others.

_2022-02-01_

**This release introduces fast fallback to better support mixed IPv4+IPv6 networks.** Fast fallback
is what we're calling our implementation of Happy Eyeballs, [RFC 8305][rfc_8305]. With this
feature OkHttp will attempt both IPv6 and IPv4 connections concurrently, keeping whichever connects
first. Fast fallback gives IPv6 connections a 250 ms head start so IPv6 is preferred on networks
where it's available.

 * [system DNS service][SYSTEM], which is the default. Some applications may provide their own
 * implementation to use a different DNS server, to prefer IPv6 addresses, to prefer IPv4 addresses,
 * or to force a specific known IP address.
 *
 * Implementations of this interface must be safe for concurrent use.
 */
fun interface Dns {
  /**