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From Olaf Kock <>
Subject Re: Updating a working installation
Date Thu, 10 May 2018 00:39:20 GMT

On 09.05.2018 17:09, James H. H. Lampert wrote:
> Question:
> Is there an easy way to bump a working Tomcat installation from one 
> release to another, without benefit of Linux "apt-get" or "yum," or 
> WinDoze "cab" (this is an OS/400 installation), without having to 
> rebuild the whole configuration (webapps, keystore, server.xml, 
> web.xml, &c.) from scratch?

Depending on the changes in your configuration and changes introduced 
between your "come from" version versus the "go to" version.

IMHO the easiest way to figure out is to download your source and target 
version of vanilla tomcat and compare them with a diff tool. Pay special 
attention to the conf folder, and if any of the changes there are actual 
changes or in comments/documentation.

That will show you if
* it's enough to replace files
* you should delete files
* the default configuration of tomcat has changed and you'll need to 
validate if you need to bring those changes forward.

Of course, you'll also need to compare your current custom installation 
with the source version, to figure out which files you use 
out-of-the-box, and which ones you have changed.

It's hard to be more specific with this generic question.


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