code: private String getUserFromUniqueID(String id) {
          if (id == null) {
              return "";
          }
          id = id.trim();
          int realmDelimiterIndex = id.indexOf("/");
          if (realmDelimiterIndex < 0) {
              return "";
          } else {
              return id.substring(realmDelimiterIndex + 1);
          }
      }
docs: New method added as an alternative of getUserFromUniqueId method of WSSecurityPropagationHelper