In true detective style I'm trying to work out whodunnit! It's probably
the butler! but in case it's not I'd appreciate any help.
I've successfully built a Cocoon block and a brand new Cocoon generator
and between them created a pipline to produce some HTML. When I change
into the Cocoon block's directory and type 'mvn jetty:run' all is well
and I can view the block's output in a browser with no trouble.
I now want to create a Cocoon web application block in order to generate
a war file and also begin adding other blocks to handle other aspects of
the web application. I've followed (and edited!) the tutorials so I
wasn't expecting any problems here... but I wasn't so lucky!
Having created the web app block (as per the deployment tutorial [1]) I
updated the pom file so that the web app block knew about the other
blocks. When I changed into the Web app block's directory and ran 'mvn
jetty:run' I noticed a lot of messages scroll off the screen but Jetty
seemed to launch ok. However when I try viewing the output in a browser
I get 404 errors. So it looks like Jetty is running but the browser
requests are either not being passed on to Cocoon at all or the Cocoon
web app block is not passing the request on to the appropriate Cocoon
block underneath it.
The trouble is I'm looking at a lot of messages from various systems
that mean nothing to me.
When I looked at the messages that scrolled off the screen they
contained the following: -
[...]
2008-07-13 12:57:46.840::INFO: jetty-6.1.7
2008-07-13 12:57:53.708::INFO: No Transaction manager found - if your
webapp requires one, please configure one.
log4j:WARN No appenders could be found for logger
(org.springframework.util.ClassUtils).
log4j:WARN Please initialize the log4j system properly.
2008-07-13 12:57:55.126::WARN: failed
[EMAIL PROTECTED]/,D:\projects\meerkat\meerkat-webapp\target\meerkat-webapp-1.0-SNAPSHOT}
java.lang.AbstractMethodError:
org.slf4j.impl.Log4jLoggerAdapter.trace(Ljava/lang/String;)V
at org.apache.commons.logging.impl.SLF4JLog.trace(SLF4JLog.java:82)
at
org.springframework.core.CollectionFactory.createConcurrentMapIfPossible(CollectionFactory.java:195)
at
org.springframework.web.context.ContextLoader.<clinit>(ContextLoader.java:153)
at
org.springframework.web.context.ContextLoaderListener.createContextLoader(ContextLoaderListener.java:53)
at
org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:44)
at
org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:540)
[...]
It looks like I've got a lot of homework to do...
Should I be worried about not having a transaction manager?
Do I need appenders for my logger?
What might cause a java.lang.AbstractMethod error and where do I start
looking?
I'm willing to add additional documentation to the site but I suspect
there are some fundamental things I need to add to the tutorial like how
to set up the logger, how to do simple spring bean configuration and how
the Cocoon web application archetype works.
Regards,
David Legg
[1] http://cocoon.apache.org/2.2/1362_1_1.html
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