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Posted to dev@tomcat.apache.org by bu...@apache.org on 2022/09/20 10:04:39 UTC

[Bug 66170] change IllegalArgumentException log output

https://bz.apache.org/bugzilla/show_bug.cgi?id=66170

Mark Thomas <ma...@apache.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |WONTFIX
             Status|NEW                         |RESOLVED

--- Comment #2 from Mark Thomas <ma...@apache.org> ---
Different users consider those messages useful. If you don't want to see them
then you can disable them via configuration. See the docs for the
org.apache.juli.logging.UserDataHelper.CONFIG system property.

If you want to provide a feed to an NIDS then you would be better off looking
in the access logs for 400 responses. Ones that report a null URI are
particularly likely candidates as that indicates that the request was so
malformed, Tomcat could not reliably parse the URI.

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