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From Greg Weinger <gwein...@itmedicine.net>
Subject The Sitemap is null
Date Fri, 15 Nov 2002 02:48:29 GMT
I just found a solution to a nasty intermittent problem with cocoon 
2.0.3, so for the sake of posterity (and potential Google searchers) I'm 
posting it.  

The exception was this:

   java.lang.RuntimeException: The Sitemap is null, this should never 
be!    at
  
 org.apache.cocoon.components.source.SitemapSource.refresh(SitemapSource.java:309)    
at    
  
 org.apache.cocoon.components.source.SitemapSource.<init>(SitemapSource.java:198)  
 
at    
  
 org.apache.cocoon.components.source.CocoonSourceFactory.getSource(CocoonSourceFactory.java:96)
   


Once this was thrown, Cocoon was dead.

I am running Tomcat 4.1.12-LE, Cocoon 2.0.3 and JDK 1.4.0_01 on Windows XP

Basically, something in our code was causing us to throw this exception 
recurrently, but never in the same exact place.  After 2 weeks we still 
could not isolate any sequence of events to cause it deterministically. 
 I won't go further into our code here, because of its complexity.

The solution was to run Tomcat as an NT Service instead of from a 
startup.bat script in a DOS window.  Perhaps someone out there could 
enlighten me as to why this would have an effect; does NT give services 
a higher priority in allocating memory?

The only previous related post was here:   
http://mailman.real-time.com/pipermail/cocoon-users/2002-August/021584.html

--Greg Weinger





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