docs: public long getExpectedSequenceNumber()
    {
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) 
        SibTr.entry(tc, "getExpectedSequenceNumber");
        
      long expectedSeqNumber = aoBrowserSession.getExpectedSequenceNumber();
      
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) 
        SibTr.exit(tc, "getExpectedSequenceNumber", new Long(expectedSeqNumber));
      return expectedSeqNumber;
    }