It looks just like you've got a conflict in JARs for your XML-support
libraries.  One way to address this is to ensure you've made the same
libraries available at runtime as you did at compile time.  (This is
somewhat conservative, but it's a good approach when troubleshooting.)

--
Shawn Bayern
Author, "JSP Standard Tag Library"  http://www.jstlbook.com
(coming this spring from Manning Publications)

On Tue, 12 Mar 2002 [EMAIL PROTECTED] wrote:

> Hi
> 
> Since the syntax for JSTL changed, I wanted to install the latest nightly
> build.
> 
> However, I get the following error when using the examples:
> javax.servlet.ServletException: loader constraints violated when linking
> org/xml/sax/helpers/DefaultHandler class
>       at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:484)
>       at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>       at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
> FilterChain.java:247)
>       at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
> ain.java:193)
>       at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
> va:243)
>       at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
> 66)
>       at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
>       at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
>       at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
> va:201)
>       at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
> 66)
>       at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
>       at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
> 
> To be sure, I then deleted everything and re-installed the JSP Standard Tag
> Library EA3 release - that works fine (but of course uses the old syntax).
> Does anyone know what the problem is?
> 
> Best regards,
> Eric
> 
> swissinfo/Swiss Radio International
> Eric Lewis
> IT Engineering
> Giacomettistrasse 1
> CH-3000 Berne 15
> 
> Phone:        ++41 31 350 95 42
> Fax:  ++41 31 350 99 40
> mailto:[EMAIL PROTECTED]
> 
> Switzerland is everywhere. Stay connected!
> http://www.swissinfo.org 
> http://mobile.swissinfo.org
> http:/wap.swissinfo.org
> 
> SRG SSR id�e suisse
> 
> 
> 
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