hpackWriter!!.writeHeaders(headerEntries(":authority", "foo.com"))
    assertBytes(0x41, 7, 'f'.code, 'o'.code, 'o'.code, '.'.code, 'c'.code, 'o'.code, 'm'.code)
    assertThat(hpackWriter!!.headerCount).isEqualTo(1)
    hpackWriter!!.writeHeaders(headerEntries(":authority", "foo.com"))
    assertBytes(0xbe)
    assertThat(hpackWriter!!.headerCount).isEqualTo(1)

    const val RESPONSE_STATUS_UTF8 = ":status"
    const val TARGET_METHOD_UTF8 = ":method"
    const val TARGET_PATH_UTF8 = ":path"
    const val TARGET_SCHEME_UTF8 = ":scheme"
    const val TARGET_AUTHORITY_UTF8 = ":authority"

    @JvmField val RESPONSE_STATUS: ByteString = RESPONSE_STATUS_UTF8.encodeUtf8()

    @JvmField val TARGET_METHOD: ByteString = TARGET_METHOD_UTF8.encodeUtf8()

        }
    }

    public AuthenticationResult getAccessToken(final String refreshToken) {
        final String authority = getAuthority() + getTenant() + "/";
        if (logger.isDebugEnabled()) {
            logger.debug("refreshToken: {}, authority: {}", refreshToken, authority);
        }
        ExecutorService service = null;
        try {
            service = Executors.newFixedThreadPool(1);

	"xds-port":            env.Register("ISTIOCTL_XDS_PORT", 15012, "The istioctl --xds-port override"),
	"authority":           env.Register("ISTIOCTL_AUTHORITY", "", "The istioctl --authority override"),
	"cert-dir":            env.Register("ISTIOCTL_CERT_DIR", "", "The istioctl --cert-dir override"),

import okhttp3.internal.http.StatusLine
import okhttp3.internal.http.promisesBody
import okhttp3.internal.http2.Header.Companion.RESPONSE_STATUS_UTF8
import okhttp3.internal.http2.Header.Companion.TARGET_AUTHORITY
import okhttp3.internal.http2.Header.Companion.TARGET_AUTHORITY_UTF8
import okhttp3.internal.http2.Header.Companion.TARGET_METHOD
import okhttp3.internal.http2.Header.Companion.TARGET_METHOD_UTF8
import okhttp3.internal.http2.Header.Companion.TARGET_PATH

 * ```
 *
 * In this example the HTTP client already knows and trusts the last certificate, "Entrust Root
 * Certification Authority - G2". That certificate is used to verify the signature of the
 * intermediate certificate, "Entrust Certification Authority - L1M". The intermediate certificate
 * is used to verify the signature of the "www.squareup.com" certificate.
 *

apiVersion: v1
clusters:
- cluster:

		"Istiod pod port")
	cmd.PersistentFlags().DurationVar(&o.Timeout, "timeout", time.Second*30,
		"The duration to wait before failing")
	cmd.PersistentFlags().StringVar(&o.XDSSAN, "authority", viper.GetString("AUTHORITY"),
		"XDS Subject Alternative Name (for example istiod.istio-system.svc)")
	cmd.PersistentFlags().BoolVar(&o.InsecureSkipVerify, "insecure", viper.GetBool("INSECURE"),

    0MC2Hb46TpSi125sC8KKfPog88Tk5c0NqMuRkrF8hey1FGlmDoLnzc7ILaZRfyHB
    NVOFBkpdn627G190
    -----END CERTIFICATE-----
    """.trimIndent().decodeCertificatePem()

  // CN=Entrust Root Certification Authority, OU="(c) 2006 Entrust, Inc.", OU=www.entrust.net/CPS is incorporated by reference, O="Entrust, Inc.", C=US
  val entrustRootCertificateAuthority =
    """
    -----BEGIN CERTIFICATE-----

apiVersion: v1
clusters:
- cluster: