code: public void alertFirstWrite() {
          if (com.ibm.ejs.ras.TraceComponent.isAnyTracingEnabled()&&logger.isLoggable (Level.FINE))  //306998.15
              logger.logp(Level.FINE, CLASS_NAME,"alertFirstWrite", "entry");
          _firstWrite = true;
          _firstWriteToCurrentBuffer = true;
          if (com.ibm.ejs.ras.TraceComponent.isAnyTracingEnabled()&&logger.isLoggable (Level.FINE))  //306998.15
              logger.logp(Level.FINE, CLASS_NAME,"alertFirstWrite", "exit");
      }
docs: Alert message that the outputstream has been written to.