docs: @Override
      @FFDCIgnore(com.ibm.websphere.security.CertificateMapFailedException.class)
      public String mapCertificate(X509Certificate[] chain) throws CertificateMapNotSupportedException, CertificateMapFailedException, RegistryException {
          try {
              return customUserRegistry.mapCertificate(chain);
          } catch (com.ibm.websphere.security.CertificateMapNotSupportedException e) {
              throw new CertificateMapNotSupportedException(e.getMessage());
          } catch (com.ibm.websphere.security.CertificateMapFailedException e) {
              throw new CertificateMapFailedException(e.getMessage(), e);
          } catch (Exception e) {
              throw new RegistryException(e.getMessage(), e);
          }
      }