builder = builder.keyPair(keyPair.public, keyPair.private)
    builder = builder.signedBy(HeldCertificate.Builder().build())
    builder = builder.certificateAuthority(0)
    builder = builder.ecdsa256()
    builder = builder.rsa2048()
    val heldCertificate: HeldCertificate = builder.build()
  }

  @Test
  fun javaNetAuthenticator() {
    val authenticator = JavaNetAuthenticator()