@JvmField val TLS_RSA_WITH_AES_256_GCM_SHA384 = init("TLS_RSA_WITH_AES_256_GCM_SHA384", 0x009d)

    @JvmField val TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 = init("TLS_DHE_RSA_WITH_AES_128_GCM_SHA256", 0x009e)

    @JvmField val TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 = init("TLS_DHE_RSA_WITH_AES_256_GCM_SHA384", 0x009f)

    .tlsVersions(TlsVersion.TLS_1_2)
    .cipherSuites(
          CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
          CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
          CipherSuite.TLS_DHE_RSA_WITH_AES_128_GCM_SHA256)
    .build();

OkHttpClient client = new OkHttpClient.Builder()
    .connectionSpecs(Collections.singletonList(spec))
    .build();
```

### Debugging TLS Handshake Failures

    Name                                     Version

    TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256  5.0
    TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256    5.0
    TLS_DHE_RSA_WITH_AES_128_GCM_SHA256      5.0
    TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA     4.0
    TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA     4.0
    TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA       4.0
    TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA       4.0