code: public static void println(String message) {
          synchronized (logSync) {
              if (logWriter != null) {
                  logWriter.println(message);
  
                  // automatic flushing is never enabled, so we must do it ourselves
                  logWriter.flush();
              }
          }
      }
docs: Prints a message to the current JDBC log stream.
  
  @param message a log or tracing message