code: public Object evaluate(TaskRequest req, TaskResponse res) {
  		String rslt = null;
  		try {
  			rslt = new File(".").toURI().toURL().toExternalForm();
  		} catch (Throwable t) {
  			String msg = "Unable to represent the current directory as a URL.";
  			throw new RuntimeException(msg, t);
  		}
  		return rslt;
  	}
docs: Always returns a <code>URL</code> representation of the filesystem
  directory from which Java is executing.
  
  @param req Representations the input to the current task.
  @param res Representations the output of the current task.
  @return The final, actual value of this <code>Phrase</code>.