Application Won't Deploy

[Mark Fitzgerald <ma...@mycustomdatabase.com>]

I have a 3rd party application (JForum) that I have running along side  
my application. The forum software has been running fine for over a  
year. I restarted the Tomcat server over the weekend, and when it came  
back up, the forum software wasn't loaded. I tried to deploy the  
application using the Manager web interface in Tomcat, but it won't  
load. Specifically, I am entering the context path, XML configuration  
file path, and the directory URL. Entering this information in the  
past has worked whenever I have had to redeploy the application. What  
happens this time is that an OK response is returned, but the  
application isn't loaded. When I check the logs, there isn't an error  
message.

I'm stumped because I don't know why it isn't loading. I've verified  
that the files and directories for the application are readable by the  
Tomcat user. I've verified that the web.xml file for the application  
is not corrupted. My software is as follows:

RedHat Linux
Tomcat v5.0.16
JForum v2.1.7
Java 1.4.2

It's possible that there is a conflict happening with one of the .jar  
files, but I can't determine which one it is because I don't see any  
error messages. I'm looking for help to determine the cause of the  
problem. I'm not sure how to proceed from this point.

I've tried setting up a <context> entry in the server.xml file. When I  
restart Tomcat with that in it, Tomcat fails to load and I get the  
following error in the log:

INFO: Installing web application at context path /jforum from URL  
file:/opt/local/tomcat/jakarta-tomcat-5.0.16/webapps/jforum
Nov 11, 2008 1:47:22 PM org.apache.catalina.core.StandardHostDeployer  
install
INFO: Error installing
org.apache.commons.logging.LogConfigurationException:  
org.apache.commons.logging.LogConfigurationException: No suitable Log  
constructor [Ljava.lang.Class;@19ba640 for  
org.apache.commons.logging.impl.Log4JLogger (Caused by  
java.lang.NoClassDefFoundError: org/apache/log4j/Category) (Caused by  
org.apache.commons.logging.LogConfigurationException: No suitable Log  
constructor [Ljava.lang.Class;@19ba640 for  
org.apache.commons.logging.impl.Log4JLogger (Caused by  
java.lang.NoClassDefFoundError: org/apache/log4j/Category))

This at least indicates that there is a problem with commons.logging,  
but I'm not sure how to work with this. Is it a problem with the  
forum, or something else?

Most likely something was updated at some point, and now there is a  
conflict. How can I determine if this is a Tomcat issue or an  
application issue?

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RE: Application Won't Deploy

["Caldarale, Charles R" <Ch...@unisys.com>]

> From: Mark Fitzgerald [mailto:mark@mycustomdatabase.com]
> Subject: Application Won't Deploy
>
> I've verified that the web.xml file for the application
> is not corrupted.

How?

> My software is as follows:
> RedHat Linux

What version?

> Tomcat v5.0.16

Can you reproduce the problem on a supported Tomcat level?  The 5.0 leg was deprecated some time ago.

> I've tried setting up a <context> entry in the server.xml file.

It's <Context>, not <context>, and doesn't really belong in server.xml.  What did you put in it?

 - Chuck


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