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From "Carlos Adolfo Ortiz Quiros" <>
Subject A Bug in org.apache.myfaces.webapp.filter.ExtensionsFilter functionallity
Date Thu, 29 Nov 2007 14:54:31 GMT
HI you all

This is a repost, as I have not got a solution to my question by tomahawk developers (this
is regarding the Extension Filter class org.apache.myfaces.webapp.filter.ExtensionsFilter
which I consider there is a bug because the resulting page gets HTML encoded which should
not be, that is, where in the page there is a á character and using the page encoding windows-1252
 it is converted to the equivalent &#255; HTML code and thus altering the functionality
of the page as such). Following is the original POST.

Any help is appreciated.

Thank you all.


After a great amount of time trying to find why web page in the source code gets altered I
concluded that the Extensions Filter is doing something that should not be doing or perhaps
I don't know how to fix.


Here is the situation.

First code sample

<%@ page contentType="text/html;charset=windows-1252"%>

<%@ taglib uri="" prefix="h"%>

<%@ taglib uri="" prefix="f"%>




      <meta http-equiv="Content-Type"

            content="text/html; charset=windows-1252"/>

      <meta name="Eddy Johana Angarita Navarro" content="TRÉBOL Software S.A."></meta>

<script type="text/javascript" language="JavaScript">



        //Valida la longitud de un texto.

function validaLongitud(texto, longitud, e) {

if (!e) e = window.event;


if (!isEdicionKey(e) && texto.value.length >= longitud) {

alert("No puede digitar más de " + longitud + " caracteres.");

return false;



return true;


// Valida si la tecla presionada es de edición.

// Utilizar unicamente en evento "onkeydown".

function isEdicionKey(e) {

if (!e) e = window.event;

var key = e.which ? e.which : e.keyCode;


return (key==8 || key==9 || (key >= 33 && key <= 40) || key==45 || key==46);



        function doOnKeyDown(e) {

          var obj = document.getElementById("frmSistemas:nombreSistema");

          validaLongitud(obj.value, 10, e);



      <title>This is a full text sample</title>


    <body onload="alert('más o áéíóúñÑ');">This is it verbatim and m&aacute;s


        <h:inputText maxlength="10" onkeypress="return validaLongitud(this, 10, event);"/>





See the text in bold above.

I am using MyFaces tomahawk and have configured the ExtensionsFilter as stated in the page


I have put this page in a tomcat server and captured the generated java code and the characters
are preserved but when I look at the source code in the Internet Browser, it gets altered
to HTML characters, that is á is changed to &aacute; or &#255;.


See in page

<%@ page contentType="text/html;charset=windows-1252"%>

<meta http-equiv="Content-Type"

            content="text/html; charset=windows-1252"/>


To enforce page is interpreted correctly by browser


I think this is a bug because the whole page should not be encoded, only what needed by the

Is there a way to fix this or it is indeed a bug in the library.




Ingeniero de Desarrollo

TRÉBOL Software S.A.

Tel : (574)3110663 Fax : (574)3113474

Dirección Cll 16 # 28-195

Medellín - Colombia <> 


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