if (conscrypt != null) {
          return conscrypt
        }
      }

      if (isBouncyCastlePreferred) {
        val bc = BouncyCastlePlatform.buildIfSupported()

        if (bc != null) {
          return bc
        }
      }

      if (isOpenJSSEPreferred) {
        val openJSSE = OpenJSSEPlatform.buildIfSupported()

        if (openJSSE != null) {