code: protected void closeConnection(final String meUuid, boolean alreadyClosed) {
  
          final String methodName = "closeConnection";
          if (TraceComponent.isAnyTracingEnabled() && TRACE.isEntryEnabled()) {
              SibTr.entry(this, TRACE, methodName, meUuid);
          }
  
          synchronized (_sessionsByMeUuid) {
  
              super.closeConnection(meUuid, alreadyClosed);
  
              _sessionsByMeUuid.remove(meUuid);
  
          }
  
          if (TraceComponent.isAnyTracingEnabled() && TRACE.isEntryEnabled()) {
              SibTr.exit(this, TRACE, methodName);
          }
  
      }
docs: Closes the connection for the given messaging engine if there is one
  open. Removes any corresponding sessions from the maps.
  
  @param meUuid
  the UUID for the messaging engine to close the connection for