code: @Override
  	public boolean isDirectory(String dirPath) {
  		String path = dirPath.replace('/', File.separatorChar);
  		return new File(baseDir, path).isDirectory();
  	}
docs: /*
  (non-Javadoc)
  
  @see
  net.jawr.web.resource.handler.reader.ResourceBrowser#isDirectory(java.
  lang.String)