try {
        val trustAnchor =
          findByIssuerAndSignatureMethod.invoke(
            trustManager,
            cert,
          ) as TrustAnchor
        trustAnchor.trustedCert
      } catch (e: IllegalAccessException) {
        throw AssertionError("unable to get issues and signature", e)
      } catch (_: InvocationTargetException) {
        null
      }
  }