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From "Kevin Jones" <kev...@develop.com>
Subject RE: Still have XML loading problems
Date Fri, 23 Mar 2001 20:39:41 GMT
Yep 1.3

> I think the only workaround for this is to ship our own copy of
> the JAXP JAR
> files, with the "sealed" attribute removed.  I'm also going to be
> talking with
> the JAXP folks about removing that in their next release.

:-(

What would happen if you made a special case of the JSP servlet and loaded
it early?
Could you preload jasper somewhere else?

Kevin Jones
DevelopMentor
www.develop.com

> -----Original Message-----
> From: Craig R. McClanahan [mailto:Craig.McClanahan@eng.sun.com]
> Sent: 23 March 2001 19:05
> To: Kevin Jones
> Cc: Tomcat-Dev
> Subject: Re: Still have XML loading problems
>
>
> Kevin Jones wrote:
>
> > Craig,
> >
> > I'm playing with the 22nd March drop of Catalina, and I've come across a
> > scenario where the new classloading architecture doesn't quite work.
> >
> > I'm using Xerces and Xalan (although Xalan is irrelevant to this). If I
> > access a servlet that uses XML and I don't put Xerces in my
> > web-app/myapp/lib my code fails (exactly what I'd expect). If I put
> > Xerces.jar into web-app/myapp/lib it works, again what I'd expect.
> >
> > However, if I put my XML code into an application listener then
> Jasper fails
> > to load - I get a Security Exception, sealing violation, while
> it's load the
> > 'jsp' servlet. It seems that what's happening is that my listener loads,
> > loads Xerces and executes OK. The jsp Servlet then tries to load
> > crimson/JAXP and *bang* sealing violation.
> >
>
> I will bet you're using a JDK 1.3 platform, right?  It turns out
> that all the
> changes we made are very effective for JDK 1.2, but the 1.3 version of
> URLClassLoader still doesn't like it.  :-(
>
> >
> > Sorry about this - the XML stuff had been going so well until then!
> >
>
> I think the only workaround for this is to ship our own copy of
> the JAXP JAR
> files, with the "sealed" attribute removed.  I'm also going to be
> talking with
> the JAXP folks about removing that in their next release.
>
>
> >
> > Kevin Jones
> > DevelopMentor
> > www.develop.com
>
> Craig
>


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