code: private void printf( String pattern, Object... args )
      {
          if( m_log != null )
          {
              StringBuilder sb = new StringBuilder();
              Formatter formatter = new Formatter(sb);
  
              try
              {
                  formatter.format(pattern, args);
  
                  m_log.info(sb.toString());
              }
              finally
              {
                  formatter.close();
              }
          }
      }
docs: Writes to the internal logger, just like ye goode olde C printf().
  
  @param pattern Pattern to write to (see {@link Formatter#format(String, Object...)}
  @param args Arguments for the pattern.