X-CACHECONF in cache type 0504

[Greg Hudson]

On Thu, 2010-11-18 at 08:57 -0500, Tim Alsop wrote:
> Why was 0504 cache type format changed, thus breaking interoperability
> with other code which uses same cache type ?

The cache format was not changed incompatibly.  The additional
information is encoded as credential entries for oddly-named server
principals.

> Basically if MIT code is used to create the cache, the Java 1.6 code
> cannot recognise the TGT unless the cache entries are renewed to
> remove the extra information added by MIT.

If so, I would expect that to reflect a bug in the Java 1.6 code; it
should see a config entry as just another credential for a service it
doesn't care about.  Obviously, had we been aware of such a bug at the
time we added the cache config support, we would have attempted to work
around it.