docs: synchronized KeyAndCertificateFactory buildAndSaveCertificates() {
          try {
              // personal keys
              KeyPair keyPair = generateKeyPair(FAKE_KEYSIZE);
              PrivateKey mockServerPrivateKey = keyPair.getPrivate();
              PublicKey mockServerPublicKey = keyPair.getPublic();
  
              // ca keys
              PrivateKey caPrivateKey = loadPrivateKeyFromPEMFile("org/mockserver/socket/CertificateAuthorityPrivateKey.pem");
              X509Certificate caCert = loadX509FromPEMFile("org/mockserver/socket/CertificateAuthorityCertificate.pem");
  
              // generate mockServer certificate
              X509Certificate mockServerCert = createCASignedCert(
                  mockServerPublicKey,
                  caCert,
                  caPrivateKey,
                  caCert.getPublicKey(),
                  ConfigurationProperties.sslCertificateDomainName(),
                  ConfigurationProperties.sslSubjectAlternativeNameDomains(),
                  ConfigurationProperties.sslSubjectAlternativeNameIps()
              );
              String randomUUID = UUID.randomUUID().toString();
              mockServerCertificatePEMFile = saveCertificateAsPEMFile(mockServerCert, "MockServerCertificate" + randomUUID + ".pem", true);
              mockServerPublicKeyPEMFile = saveCertificateAsPEMFile(mockServerPublicKey, "MockServerPublicKey" + randomUUID + ".pem", true);
              mockServerPrivateKeyPEMFile = saveCertificateAsPEMFile(mockServerPrivateKey, "MockServerPrivateKey" + randomUUID + ".pem", true);
          } catch (Exception e) {
              MOCK_SERVER_LOGGER.error("Error while refreshing certificates", e);
          }
          return this;
      }