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Date: Thu, 04 Sep 2014 15:58:25 +0100
From: Mark Thomas <markt@apache.org>
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To: Tomcat Users List <users@tomcat.apache.org>
Subject: Re: New warning at Tomcat Startup
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On 04/09/2014 15:38, Martin Knoblauch wrote:
> Hi,
> 
>  I am using JDK 1.7.0_67 and Tomcat 7.0.55. At application startup I am
> seeing a bunch of below  messages flying by. The messages have not been
> observed with Tomcat 7.042. There are exactly 135 of them, which is the sum
> of the jars in $CATALINA_HOME/lib and my applications WEB-INF/lib.
> 
> Two questions:

I count three questions, not two.

> 1) Has something changed between 7.0.42 and 7.0.55, that could cause this

Nothing jumps out at me in the changelog.

> 2) How can one find out which jars are "problematic"

Not easily. Your best bet would be to write a short app that parsed the
Manifest of each Jar file in turn.

> 3) Can one stifle the message without modifying all 135 jars

Change the log level for java.util.jar to ERROR.

Mark


> 
> #######
> Sep 04, 2014 4:23:21 PM java.util.jar.Attributes read
> WARNING: Duplicate name in Manifest: Depends-On.
> Ensure that the manifest does not have duplicate entries, and
> that blank lines separate individual sections in both your
> manifest and in the META-INF/MANIFEST.MF entry in the jar file.
> #######
> 
> TIA
> Martin
> 


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