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From Jonny Sizlak <jsywu...@kerbit.ath.cx>
Subject HomesUserDatabase
Date Thu, 26 Feb 2004 15:43:42 GMT
Hey everybody,

I'm running Tomcat 5.0.18 on Red Hat Linux 9.  I'm running it for a
university's Computer Science department, and the server has a few
hundred user accounts, and I've been tasked with giving every user
access to Tomcat.  I was going to start writing a script to give
everyone a webapps directory, but I saw in the O'Reilly Tomcat book that
I can have it serve .jsp files out of people home directories.  After
reading that I got very excited because I would get the rest of the day
off.  Sadly, this was not the case. :(

We use NFS and NIS to allow people to login from Lab Machines in our
compsci lab, and neither services are on the same server as Tomcat. 
This presents a problem because the /etc/passwd file for the users isn't
on the same server as Tomcat.  So I tried using the HomesUserDatabase
Listener with the NFS directory...

  <Listener className="org.apache.catalina.startup.UserConfig"
            directoryName="webapps"
            homeBase="/home/nfs"
            userClass="org.apache.catalina.startup.HomesUserDatabase"/>

...and when I went to restart Tomcat, I got this:

Feb 24, 2004 3:49:34 PM org.apache.coyote.http11.Http11Protocol init
INFO: Initializing Coyote HTTP/1.1 on port 8080
Feb 24, 2004 3:49:34 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1971 ms
java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)
        at
org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:297)
        at
org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:398)
Caused by: java.lang.NullPointerException
        at
org.apache.catalina.startup.UserConfig.log(UserConfig.java:420)
        at
org.apache.catalina.startup.UserConfig.lifecycleEvent(UserConfig.java:295)
        at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:166)
        at
org.apache.catalina.core.StandardServer.start(StandardServer.java:2336)
        at org.apache.catalina.startup.Catalina.start(Catalina.java:598)
        ... 6 more

I'm not really sure what's going wrong there.  I tried googling it, but
came up empty.  Does anyone have any ideas?

Thanks!

.jonny.


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