code: public static boolean checkProperties(Properties postProp, String url,
              String method, String oauth_consumer_key, String oauth_consumer_secret) {
  
          return checkProperties(convertToMap(postProp), url, method,
                  oauth_consumer_key, oauth_consumer_secret);
      }
docs: Check if the properties are properly signed
  
  @deprecated See:
  {@link BasicLTIUtil#checkProperties(Map, String, String, String, String)}
  
  @param postProp
  @param url
  @param method
  @param oauth_consumer_key
  @param oauth_consumer_secret
  @return