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From Larry Isaacs <>
Subject RE: Classloader TC3.3
Date Tue, 06 Nov 2001 14:24:27 GMT
While trying to fix the "useJspServlet" problem, I'll
at least make it easier to enable the JspServlet in
a web application without having to copy jars.

I'll also take a look to see if JspInterceptor can be made
configurable for other than JSP.  If that doesn't
prove practical, I try to come up with how it might be
customized into a MyCssInterceptor.


-----Original Message-----
From: Marc Ponschab []
Sent: Tuesday, November 06, 2001 3:09 AM
To: Tomcat Users List
Subject: Re: Classloader TC3.3

Thanks for your answer,

is there cuurently any possibility mapping other extensions than *.jsp 
to get the hook in JspInterceptor?
It seems to be more effective rather than invoking the JspServlet.


Larry Isaacs wrote:

> You aren't making a mistake, other than thinking you made a
> mistake.  This is probably the simplest solution if you
> want to make use of Jasper's JspServlet.
> To improve performance, Tomcat 3.3 doesn't use Jasper's
> JspServlet.  Instead JSP's are translated (using Jasper) and
> compiled by the JspInterceptor.  The resulting JSP servlet is
> then served with the same overhead as a regular servlet.  A
> side effect of this is that the JspServlet isn't visible to web
> applications by default.
> Note that the useJspServlet="true" option for the JspInterceptor
> currently trips on this same problem of the JspServlet not being
> visible to webapps.  We are currently working on fixing this for
> Tomcat 3.3.1.
> Cheers,
> Larry
>>-----Original Message-----
>>From: Marc Ponschab []
>>Sent: Monday, November 05, 2001 10:15 AM
>>Subject: Classloader TC3.3
>>i've problems understanding the classloader hierarchy in Tomcat 3.3.
>>In my webapps, i use for generating dynamic CSS-sheets the following 
>>     <servlet-name>
>>         css
>>     </servlet-name>
>>     <servlet-class>
>>         org.apache.jasper.servlet.JspServlet
>>     </servlet-class>
>>     <servlet-name>
>>         css
>>     </servlet-name>
>>     <url-pattern>
>>         *.css
>>     </url-pattern>
>>This works fine with tomcat 3.2.x and also Tomcat 4, but tomcat 3.3 
>>requires at least the following JARs in the $TOMCAT_HOME/lib/apps 
>>directory to avoid ClassNotFound-Exceptions:
>>jasper.jar, crimson.jar, xalan.jar, tools.jar
>>But i think this cannot be the proper solution, so: what's my 
>>Thank you in advance, Marc

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