On Apr 6, 2005 10:31 AM, Jeanfrancois Arcand <[EMAIL PROTECTED]> wrote:
> Tomcat uses it's own local version. This way you can use Tomcat without
> being connected to the internet, or pay the price of connection over
> http everytime a war is deployed.
> 
> > And what's WAY more important: what does the servlet spec say about
> > how a server should validate web.xml?
> 
> See the Servlet Spec.
> >
> > SRV.13.2         Rules for Processing the Deployment Descriptor
> > This section lists some general rules that Web containers and developers 
> > must note
> > concerning the processing of the deployment descriptor for a Web 
> > application.
> >  · Web containers must remove all leading and trailing whitespace, which is 
> > de-
> >    fined as "S(white space)" in XML 1.0 (http://www.w3.org/TR/2000/WD-xml-
> >    2e-20000814), for the element content of the text nodes of a deployment 
> > de-
> >    scriptor.
> >  · The deployment descriptor must be valid against the schema. Web 
> > containers
> >    and tools that manipulate Web applications have a wide range of options 
> > for
> >    checking the validity of a WAR. This includes checking the validity of 
> > the de-
> >    ployment descriptor document held within. The containers and tools that 
> > are
> >    part of J2EE technology-compliant implementation are required to validate
> >    deployment descriptor against the XML schema for structural correctness.
> >    The validation is recommended, but not required for the web containers 
> > and
> >    tools that are not part of J2EE technology-compliant implementation.

Yes, I saw this. However, what gives a PORTABLE application the right
to specify a relative URL for the location of the Schema and not
provide that schema there? I don't see anything in this paragraph that
says this is allowed.

SO, are you saying that even though Tomcat will accept whatever you
put for the path to the Schema (since it uses its own copy), the app
will not necessarily be portable to other servers since they might
choose to actually pay attention to the schema location specified by
web.xml?

So, to guarantee that the app is 100% portable, you must specify:

<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">


Am I correct?

Thanks,
NG.

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