docs: public synchronized @CheckForNull HashedToken revokeToken(@Nonnull String tokenUuid) {
          for (Iterator<HashedToken> iterator = tokenList.iterator(); iterator.hasNext(); ) {
              HashedToken token = iterator.next();
              if (token.uuid.equals(tokenUuid)) {
                  iterator.remove();
                  
                  return token;
              }
          }
          
          return null;
      }