Re: Tomcat 6.0.16 Startup Listener

[Mark Thomas]

Jess Holle wrote:
Stusynski, Dan wrote:
Tomcat devs,
Noticed a curiousity during 6.0.16 startup after migrating from 6.0.14.
Below is the startup logs for Tomcat 6.0.16 and am curious if this has
been seen before (the duplicate Listeners)? This was not encountered in
6.0.14.

Not only do we get these duplicate Listener messages for anything
defined in web.xml but we also get it for anything we might define
additionaly for our softwares Listeners.
  
In other words, we also get such duplicate listener messages any/all 
<listener>'s in our web app's web.xml as well.  [Our web.xml is a 
perfectly valid 2.4 web.xml that worked fine with 6.0.14.]

These info messages were certainly not present in 6.0.14 and even if 
they're bogus raise concerns and questions in 6.0.16.

They are a result of the fix for 
http://issues.apache.org/bugzilla/show_bug.cgi?id=44268

It means that for some reason, Tomcat is trying to register the listener 
more than once and subsequent attempts are ignored. This has been the case 
for all of the 6.0.x series but now it is logged when it happens.

Looking back at the original issue 
http://issues.apache.org/bugzilla/show_bug.cgi?id=3770 it is probably 
occurring because the TLD is being processed twice.

If this is generating a lot of noise then we probably need to look at an 
alternative solution but one that addresses the noise and 44268 doesn't 
immediately jump out at me.

Mark



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