You are using the wrong tags to set this. From Resin 2.0.2 Documentation for Trouble shooting:
"Resin doesn't update changed servlets and
JSP pages"
Resin has a delay for
testing updated servlets and JSP pages.
The configuration variable for both is 'class-update-interval' in
resin.conf. It's an application-level variable. The default is 15
seconds. So Resin will only check every 15 seconds for an updated
page. You can set this value to 0 for development work.
<http-config class-update-interval='0'>
...
</http-config>
If you want Resin to check servlets for updates every hour, your
resin.conf might look like:
<http-config class-update-interval='3600'>
...
</http-config>
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I Hope This Helps
Carl Trusiak, SCJP2, SCWCD