How to figure out which, if any, update changed /etc/localtime from a link to a hard file?

[Brian McKee]

On Thu, Apr 16, 2009 at 5:24 PM, David M. Karr
<davidmichaelkarr at gmail.com> wrote:
> So, I had recently discovered a bug with Java not using the correct date
> ranges for DST.  What I've determined is that Java requires
> /etc/localtime to be a symlink, not a hard file.  When I replaced the
> hard file with a link to the correct file, it fixed my problem.
>
> Now, what I'd like to find out is how and when /etc/localtime became a
> hard file.
>
> I have no idea whether the original Ubuntu 8.10 installation was in this
> state or not.  It could have happened when I installed one of the many
> updates that come through.
>
> is there any way to search through the list of updates that I've
> installed to see whether any of them would have done this?

Huh.  I thought java had it's own tzdata stuff and didn't use the
system.  Perhaps that's changed.

I'm guessing the packages you are referring to are tzdata and
tzdata-java,  but I would have thought breaking java's timezone would
be a big bug lots of people would have noticed by now.  Launchpad show
anything?

Brian