docs: protected ConnectionProxy getConnectionProxy()
     {
        if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.entry(this, tc, "getConnectionProxy");
  
        if (connectionProxy == null)
        {
           // Someone is trying to use the connection proxy associated with this proxy object but it
           // has not been set or has been nulled out.
           SIErrorException e = new SIErrorException(
              nls.getFormattedMessage("CONNECTION_PROXY_NOT_SET_SICO1053", null, null)
           );
  
           FFDCFilter.processException(e, CLASS_NAME + ".getConnectionProxy",
                                       CommsConstants.PROXY_GETCONNECTIONPROXY_01, this);
  
           throw e;
        }
  
        if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.exit(this, tc, "getConnectionProxy", connectionProxy);
        return connectionProxy;
     }