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From Konstantin Kolinko <knst.koli...@gmail.com>
Subject Re: Tomcat 6 : Warnings at startup
Date Sun, 10 Jun 2012 12:44:46 GMT
2012/6/10 André Warnier <aw@ice-sa.com>:
>
> No tomcat 5.5 files have been copied to that system (apart from the webapp).
> Here is the complete (edited, comments removed) content of
> tomcat6/conf/catalina.properties :
>
> (...)
> common.loader=${catalina.base}/lib,${catalina.base}/lib/*.jar,${catalina.home}/lib,${catalina.home}/lib/*.jar,/var/lib/tomcat6/common/classes,/var/lib/tomcat6/common/*.jar
> server.loader=${catalina.home}/server/classes,${catalina.home}/server/*.jar,/var/lib/tomcat6/server/classes,/var/lib/tomcat6/server/*.jar
> shared.loader=${catalina.home}/shared/classes,${catalina.home}/shared/*.jar,/var/lib/tomcat6/shared/classes,/var/lib/tomcat6/shared/*.jar

The above fragment of catalina.properties explains the issue that you
are observing.

The "common.loader", "server.loader" and "shared.loader" values
provide configuration for Common, Server and Shared classloader, as
better documented in 5.5 (Tomcat 6 docs not mention Server and Shared
ones, but they still do exist):

http://tomcat.apache.org/tomcat-5.5-doc/class-loader-howto.html#Overview

If you look at a fresh copy of Tomcat 6, the values would be:

[[[
common.loader=${catalina.base}/lib,${catalina.base}/lib/*.jar,${catalina.home}/lib,${catalina.home}/lib/*.jar
server.loader=
shared.loader=
]]]

The ones that you have in your file are a mix of 5.5 and 6.0 values.

ClassLoaderFactory.validateFile() method is called in turn for each
value in each of the 3 *.loader options and checks that those values
point to an existing place, which is a directory and is readable.

In your case,

> WARNING: Problem with directory [/usr/share/tomcat6/server/classes],
> exists: [false], isDirectory: [false], canRead: [false]

it looked for [/usr/share/tomcat6/server/classes] and warned you that
the said directory does not exist.


Best regards,
Konstantin Kolinko

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