On 10/20/06, Allen,Eva <[EMAIL PROTECTED]> wrote:
I sent this message to the tomcat users list also because I wasn't sure
where the actual problem lies--with tomcat or with the digester.
Anyway, here's the problem:
I want to use the Jakarta commons digester xmlrules package to parse the
xml I get from a web service I access from within a service. This means
I have to include four commons jar files within the classpath tomcat
uses commons-digester, commons-logging, commons-beanutils and
commons-collections. I tried putting the jar files in my CLASSPATH
variable, but Tomcat builds its own classpath, so when the servlet
executed I got a java.lang.NoClassDefFoundError. Tomcat (or the
servlet) couldn't find
org/apache/commons/digester/xmlrules/DigesterLoader.
I am using Tomcat version 4.1.24. There is a version of the
commons-digester jar file that comes with that tomcat in server/lib. So
I put the commons-digester.jar file in server/lib in the commons/lib
directory so that Tomcat would include the jar file in its classpath.
However, when I did that, Tomcat wouldn't even start--the error message
then was ClassNotFoundException. The relevant part of the stack trace
is included here below.
What gives? It looks like the version of commons-digester.jar that
comes with tomcat 4.1.24 isn't even compatible with it, but that can't
be right? I suppose the bigger question, though, is how can I get
Jakarta digester and tomcat 4 to play nice with each other?
You should follow the standard practice for web applications and include all
of your dependencies in your own application, rather than trying to depend
on the container to satisfy some of them. The problem you are seeing is
happening because the Digester cannot "see" your classes to instantiate
them, because those classes are not "visible" outside of your web app. Once
you put Digester inside of your web app, it will be able to see your classes
and thus be able to instantiate them.
And how can
I find out what version of *any* jar file I have when all I have is the
name of the jar file?
Assuming you have the actual jar file (and not just the name of it), the
manifest inside the jar file should include the version.
--
Martin Cooper
2006-10-20 14:20:36.300 [ERROR ] main (digester.Digester) - Begin event
threw exception
java.lang.ClassNotFoundException:
org.apache.catalina.core.StandardServer
at
org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLo
ader.java:992)
at
org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLo
ader.java:857)
at
org.apache.commons.digester.ObjectCreateRule.begin(ObjectCreateRule.java
:252)
at org.apache.commons.digester.Rule.begin(Rule.java:200)
at
org.apache.commons.digester.Digester.startElement(Digester.java:1268)
--
Eva Allen
Consulting Software Engineer, OCLC, Inc.
6565 Frantz Rd., Dublin, OH 43017
614.764.6009 | [EMAIL PROTECTED]
Views contained herein are my own; they do not necessarily reflect those
of my employer
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