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Date: Mon, 16 Jul 2007 18:37:57 -0700 (PDT)
From: csirus <gavin.kennedy@csiro.au>
To: users@tomcat.apache.org
Subject: Re: Problem listing apps in manager app
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I hit the same snag when I updated server.xml and added some Context elements
for web apps I hadn't deployed yet. So, check the spelling/existence of any
webapps that you explicitly name in your server.xml file.


Jake Alley wrote:
> 
> I'm trying to list the applications in the manager app.  It was working
> before, but now all of a sudden it has stopped.  It was working before,
> but I added an app and it stopped working.  I remove the app and it still
> doesn't work.  I clean the work space for the manager app and it still
> doesn't work.  The applications list under "Complete Server Status" but
> not under "List Applications."
> 
> I'm using 6.0.13 on 1.5.0_06-b05
> 
> The error I get is:
> 
> java.lang.NullPointerException
> 
> org.apache.catalina.manager.HTMLManagerServlet.list(HTMLManagerServlet.java:434)
> 
> org.apache.catalina.manager.HTMLManagerServlet.doGet(HTMLManagerServlet.java:137)
>  javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
>  javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
> 
>  Line 434 is the following:
> 
> args[11] = new Integer(context.getManager().getMaxInactiveInterval()/60);
> 
> I'm inclined to believe it's failing because of context.getManager() which
> is checked for null previously in the same function.
> 
>                if (context.getManager() != null) {
>                     args[4] = new Integer
>                         (context.getManager().getActiveSessions());
>                 } else {
>                     args[4] = new Integer(0);
>                 }
> 
> Does anybody have any insight into this?
> 
> Thanks.
> 
> 
>        
> ---------------------------------
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> 

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