Http Servlet request lose params from POST body after read it once

I'm trying to access two http request parameters in a Java Servlet filter, nothing new here, but was surprised to find that the parameters have already been consumed! Because of this, they are not available in the filter chain anymore.

It seems that this only occurs when parameters come in a POST request body (a form submit, for example).

Is there a way to read the parameters and NOT consume them?

So far I've found only this reference: Servlet Filter using request.getParameter loses Form data.

Thanks!