[cp-patches] Documentation and serialization patch for java.util.Currency

[Andrew John Hughes]

The attached patch adds missing documentation to
java.util.Currency, as well as implementing correct
serialization and maintainence of its singleton status
via a cache.
One problem I found in testing this is that retrieving
a instance based on a country code will never work,
as getAllAvailableLocales() is not implemented correctly
(it currently returns a static list of four locales,
most of which refer to particular languages rather than
countries, which isn't too helpful as regards currencies
-- I could retrieve the UK currency via getInstance(Locale.UK)
but not via getInstance("GBP")).  Can this now be properly
implemented?  I don't know the status regarding the locales,
but I suppose we could at least include all the constant
locales in Locale, if not something better.  From browsing
through gnu.java.locale, there are quite a few now implemented
(but I don't know to what degree).
-- 
Andrew :-)

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util_doc_patch_03.diff
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