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From Christopher Schultz <ch...@christopherschultz.net>
Subject Re: Migration to Tomcat 8.0 Post/PreResources vs VirtualWebappLoader with optional resources
Date Wed, 07 Dec 2016 21:58:11 GMT
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Robin,

On 12/7/16 4:01 AM, Berg, R. van den (Robin) wrote:
> Hello! I have an issue that seems not supported anymore with Tomcat
> 8. The same problem is also posted in the comments on:
> https://tomcat.apache.org/tomcat-8.0-doc/config/resources.html
> 
> PROBLEM: We used the virtualWebAppLoader to get some extra
> libraries and classes that were on the machine on the classloader. 
> The virtualClasspath-property of the virtualWebAppLoader was a
> ';'-seperated list of directories. If one of them was empty, that
> was not a problem. We used the fact that non-existing/empty
> directories were not loaded, without any exception. MQ were
> imported on Test-acceptance-production. However, in a
> local/dev-setup we do not provide these libraries, since
> MQ-services are stubbed out.
> 
> We used the {Jar|File|Dir}ResourceSet in the context.xml as
> replacement for the virtualWebAppLoader, as recommended by the
> migration guide. However, these fail when the base-property is
> non-existent. Therefore, it breaks dev/local.
> 
> In the comments in
> https://tomcat.apache.org/tomcat-8.0-doc/config/resources.html a
> solution was posted to extend the {Jar|File|Dir}ResourceSet. 
> However, that solution won't work for us, since we can't provide
> the tomcat-instances on test-acc-prd with an extra class/library
> with the extended class. (access-rights/cloud-solution only allows
> default setup).
> 
> PREFERRRED SOLUTION: Just like the tomcat 7  virtualWebAppLoader we
> would like the ResourceSet to be optional/non-failing if the
> resource is not available. Is there any configuration/property I
> can use to do that?

Did you file an enhancement request as suggested by Konstantin all
those months ago?

- -chris
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