code: public void removeAllWriter(boolean close)
  	{
  		if (close)
  			synchronized (writers) {
  				for (final Iterator i = writers.iterator(); i.hasNext();)
  					((LogWriter) i.next()).close();
  			}
  		writers = new Vector();
  	}
docs: Removes all registered log writer from this log service.
  <p>
  
  @param close should the writers be closed before removal