docs: public final void requestUpdate(Transaction transaction) throws MessageStoreException
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.entry(this, tc, "requestUpdate", transaction);
  
          Membership membership = _getMembership();
          if (null == membership)
          {
              throw new NotInMessageStore();
          }
          else
          {
              membership.requestUpdate(transaction);
          }
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.exit(this, tc, "requestUpdate");
      }