@Deprecated
    @SuppressWarnings({"UnusedDeclaration"})
    protected boolean shouldNotFilter(ServletRequest request) throws ServletException {
        return false;
    }
Can be overridden in subclasses for custom filtering control,
returning <code>true</code> to avoid filtering of the given request.
<p>The default implementation always returns <code>false</code>.

@param request current HTTP request
@return whether the given request should <i>not</i> be filtered
@throws ServletException in case of errors
@deprecated in favor of overriding {@link #isEnabled(javax.servlet.ServletRequest, javax.servlet.ServletResponse)}
for custom behavior.  This method will be removed in Shiro 2.0.
web/src/main/java/org/apache/shiro/web/servlet/OncePerRequestFilter.java