[rfc][icedtea-web] CacheUtil Clear Cache Small Fix

[Omair Majid]

* Jie Kang <jkang at redhat.com> [2014-08-29 12:02]:
> This patch fixes this issue by also clearing the LRU when clearing the
> cache.

That seems sensible.

> I have also renamed the function to emptyCache in order to
> clash less with the function cleanCache (which removes files marked
> for delete, not all files) Thoughts?

This one, I am less sure about. The CacheLRUWrapper also contains a
clear method, so at least the current convention is a little bit
consistent.

Also, I am a bit surprised that the patch does not touch any caller.
Does no code in icedtea-web actually call this method?

Thanks,
Omair

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