private Object[] getFieldsForUpdate(ClientDetails clientDetails) {
   String json = null;
   try {
     json = mapper.writeValueAsString(clientDetails.getAdditionalInformation());
   } catch (Exception e) {
     logger.warn("Could not serialize additional information: " + clientDetails, e);
   }
   return new Object[] {
     clientDetails.getResourceIds() != null
         ? StringUtils.collectionToCommaDelimitedString(clientDetails.getResourceIds())
         : null,
     clientDetails.getScope() != null
         ? StringUtils.collectionToCommaDelimitedString(clientDetails.getScope())
         : null,
     clientDetails.getAuthorizedGrantTypes() != null
         ? StringUtils.collectionToCommaDelimitedString(clientDetails.getAuthorizedGrantTypes())
         : null,
     clientDetails.getRegisteredRedirectUri() != null
         ? StringUtils.collectionToCommaDelimitedString(clientDetails.getRegisteredRedirectUri())
         : null,
     clientDetails.getAuthorities() != null
         ? StringUtils.collectionToCommaDelimitedString(clientDetails.getAuthorities())
         : null,
     clientDetails.getAccessTokenValiditySeconds(),
     clientDetails.getRefreshTokenValiditySeconds(),
     json,
     clientDetails.getClientId()
   };
 }