We've found a parameterless aclfindMethod that defaults to working on the 
current resource, analogous to other paramaterless methods, to be useful. 
Could one be added to Slide?

org.apache.webdav.lib.WebdavResource ~ line 2107

    /**
     * Return the <code>AclProperty</code> for the current resource
     *
     * @param path the server relative path of the resource to request
     * @return acl property, null if the server doesn't respond with
     * <code>AclProperty</code>
     */
     public AclProperty aclfindMethod()
     throws HttpException, IOException {
       thisResource = true;
       return aclfindMethod(httpURL.getPathQuery());
     }