Hi,
When changing from SHA1 to SHA512 the download page was incorrectly updated.
There needs to be a link for the 7.2.1 and 7.2.2 releases to the ASC signature, just as there are for the earlier releases.
I've moderated the 7.2.2 announcement through with the expectation that you can fix this timely.
Regards,
Craig
Craig L Russell
Secretary, Apache Software Foundation
clr@apache.org http://db.apache.org/jdo