other is AndroidCertificateChainCleaner &&
      other.trustManager === this.trustManager

  override fun hashCode(): Int = System.identityHashCode(trustManager)

  companion object {
    @SuppressSignatureCheck
    fun buildIfSupported(trustManager: X509TrustManager): AndroidCertificateChainCleaner? {
      val extensions =
        try {
          X509TrustManagerExtensions(trustManager)
        } catch (iae: IllegalArgumentException) {