code: @Override
      public String getSecureVirtualHostName() {
          if (this.getSecurePortEnabled()) {
              return configInstance.getStringProperty(namespace + SECURE_VIRTUAL_HOSTNAME_KEY,
                      super.getSecureVirtualHostName()).get();
          } else {
              return null;
          }
      }
docs: /*
  (non-Javadoc)
  
  @see
  com.netflix.appinfo.AbstractInstanceConfig#getSecureVirtualHostName()