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From giacomo <giac...@apache.org>
Subject Re: HEAD is broken (was: RE: strange problem with HEAD)
Date Wed, 05 Dec 2001 10:55:27 GMT
On Tue, 4 Dec 2001, Berin Loritsch wrote:

> Torsten Curdt wrote:
>
> >>>>I tried now 3 different machines and 3 different servlet engines...
> >>>>...so I doubt this is just me.
> >>>>
> >>>>Unfortunately I wasn't able to track it down. Berin, maybe you
> >>>>have an idea? Looks like it is realated to the avalon framework
> >>>>jar.
> >>>>
> >>>Hmm.  I updated the jars in HEAD, and asked for people to give feedback
> >>>because when I tested it here, it worked.  What exactly is the issue?
> >>>
> >>>
> >>I also have reported an error : see
> >>http://marc.theaimsgroup.com/?l=xml-cocoon-dev&m=100713443411193&w=2
> >>
> >>This occurs on Tomcat 4.0, JDK 1.3.0, Win 2000/98 using
> >>build webapp-local -Dinclude.webapp.libs=true
> >>
> >
> > Berin, do you have an idea where there is the problem? Should
> > I make a post on avalon-dev? This is all quite strange and I
> > cannot see the problem. (Maybe a classloader problem?)
> >
> > I'd be happy to have a closer look... I'd like to have a working HEAD ;)
>
>
> can you back out the Avalon jars with the ones that were there before?


After replacing avalon-excalibur with the version from the 2.0 branch
everithing seems to work. I've also replaced it using todays snapshot of
avalon-excalibur.jar which shows a ClassLoader problem. I've put one of
those Exception reports here:

DEBUG   (2001-12-05) 11:50.48:604   [cocoon  ] (/cocoon/welcome)
HttpProcessor[8080][4]/ExcaliburComponentManager: Could not find
component for role: org.apache.cocoon.reading.ReaderSelector
java.lang.NullPointerException:
        at
org.apache.catalina.loader.WebappClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:290)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
        at
org.apache.avalon.excalibur.component.ExcaliburComponentManager.lookup(ExcaliburComponentManager.java:273)
        at
org.apache.avalon.excalibur.component.ExcaliburComponentManager.lookup(ExcaliburComponentManager.java:257)
        at
org.apache.cocoon.sitemap.AbstractSitemap.compose(AbstractSitemap.java:126)
        at
org.apache.avalon.excalibur.component.DefaultComponentFactory.newInstance(DefaultComponentFactory.java:157)
        at
org.apache.avalon.excalibur.component.ThreadSafeComponentHandler.initialize(ThreadSafeComponentHandler.java:84)
        at
org.apache.cocoon.components.language.generator.GeneratorSelector.addGenerator(GeneratorSelector.java:135)
        at
org.apache.cocoon.components.language.generator.ProgramGeneratorImpl.addCompiledComponent(ProgramGeneratorImpl.java:345)
        at
org.apache.cocoon.components.language.generator.ProgramGeneratorImpl.load(ProgramGeneratorImpl.java:179)
        at org.apache.cocoon.sitemap.Handler.run(Handler.java:208)
        at java.lang.Thread.run(Thread.java:484)

I'm using the latest Catalina (Tomcat-4) from CVS.

Giacomo



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