platform.assumeNotConscrypt()
    platform.assumeNotBouncyCastle()

    val clientRoot =
      HeldCertificate.Builder()
        .certificateAuthority(1)
        .build()
    val clientIntermediate =
      HeldCertificate.Builder()
        .certificateAuthority(0)
        .signedBy(clientRoot)
        .build()
    val clientCertificate =
      HeldCertificate.Builder()
        .signedBy(clientIntermediate)

    builder = builder.keyPair(keyPair)
    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() {

- Kubeadm: tried to load CA cert from external CertificateAuthority file when CertificateAuthorityData is empty for existing kubeconfig. ([#111783](https://github.com/kubernetes/kubernetes/pull/111783), [@SataQiu](https://github.com/SataQiu))