The file looks exactly like what you posted, also on a freshly registered 5.3.2 device:
Code:
[root@kindle root]# cat /var/local/java/prefs/reginfo
#Sun Feb 17 22:54:21 GMT 2013
givenName=XXXXXXXXX
deviceName=XXXXXXXXX
userName=XXXXXXXXX XXXXXXXXX
deviceEmailAddress=XXXXXXXXX@kindle.com
(personal information redacted out).
The only difference I see is that you seem to have inserted spaces where there should not be any, but that's probably not the reason of the failure.