"Christopher Schultz" <ch...@christopherschultz.net> wrote in message 
news:4a5be03c.7050...@christopherschultz.net...
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> David,
>
> On 7/13/2009 8:50 PM, David Smith wrote:
>> If you look at all the third party repackages of tomcat that fail,
>> you'll see a theme -- symlinks cause problems in java.  I would highly
>> recommend you find a way to maintain that config file via the build
>> system and have a copy in each of the webapps.  Either that or put a
>> copy in tomcat's lib folder where it becomes accessible to all webapps
>> in the environment.
>
> While I agree with your recommendation for using a more sophisticated
> build/deployment process, I disagree with your reasoning. Java and/or
> Tomcat should not have any problem reading files via symlinks. As far as
> I know, Java's I/O API does not have the ability to distinguish between
> symbolic and hard links. I suspect the problem lies elsewhere.
>

My first guess is that there is a SecurityManager lurking somewhere to stop 
the OP from doing:
  ln -s /etc/passwd


> It's possible that the native part of the ClassLoader has some objection
> to symlinked files, but I can't imagine that to be true.
>
> I have never had any problems with symlinks from Java programs in the
> past. That doesn't mean that I've seen everything, though.
>
> John, what is the actual error when the file cannot be found? What
> happens if you try to open the file using a FileInputStream instead of
> the ClassLoader?
>
> - -chris
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