[kaffe] Problem with Strings/Xml Parsing while trying to run an embedded Jetty

Rafael Teixeira monoman at gmail.com
Fri Oct 21 05:36:50 PDT 2005


Thanks for the detailed explanation, Ito

:)

On 10/20/05, Ito Kazumitsu <kaz at maczuka.gcd.org> wrote:
> Hi,
>
> From: Rafael Teixeira <monoman at gmail.com>
> Date: Wed, 19 Oct 2005 21:22:13 -0200
>
> > I think you've found the right spot on my second problem. Thank you
> > for your time: I will set org.mortbay.xml.XmlParser.NotValidating to
> > true, as the web application is fixed and embedded in the same big jar
> > as jetty and all the other components.
>
> That will be nice.
>
> I said,
>
> > > I am afraid gnu.xml package is not mature enough as a validating
> > > XML parser.  Much work will be needed to make it stable.
>
> > > Switching the SAX parser to xerces solves the problem. So I think
> > > the problem exists in gnu.xml package.
>
> But a further study indicates that the XML validation of gnu.xml
> is not necessarily wrong.  The problem is that Jetty 5.1 has
> gone beyond the point gnu.xml can reach.
>
> Let's look at org/mortbay/jetty/servlet/webdefault.xml.
>
> Jetty 4.2 had this:
>
> | <?xml version="1.0" encoding="UTF-8"?>
> | <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
> |
> | <!-- ===================================================================== -->
> | <!-- This file contains the default descriptor for web applications.       -->
> | ...
> | <web-app>
>
> It was a valid document according to the DTD web-app_2_3.dtd.
>
> But now Jetty 5.1 has this.
>
> | <?xml version="1.0" encoding="ISO-8859-1"?>
> |
> | <!-- ===================================================================== -->
> | <!-- This file contains the default descriptor for web applications.       -->
> | ...
> | <web-app
> |    xmlns="http://java.sun.com/xml/ns/j2ee"
> |    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> |    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
> |    version="2.4">
>
> The DTD has gone.  So a normal validating XML parser cannot help but
> treat this as an invalid document. The error of "Element type 'web-app'
> was not declared" occurred not on your web.xml file but on Jetty's
> webdefault.xml file.
>
> Jetty has chsen to use XML Schema instead of DTD, but gnu.xml's
> XML Schema support is still being worked on.
>


--
Rafael "Monoman" Teixeira
---------------------------------------
I'm trying to become a "Rosh Gadol" before my own eyes.
See http://www.joelonsoftware.com/items/2004/12/06.html for enlightment.
It hurts!




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