While testing I noted:
+++
Alias name: tomcat
Creation date: Oct 13, 2011
Entry type: PrivateKeyEntry
Certificate chain length: 1
Certificate[1]:
Owner: CN=Unknown, OU=Unknown, O=Unknown, L=Unknown, ST=Unknown, C=Unknown
Issuer: CN=Unknown, OU=Unknown, O=Unknown, L=Unknown, ST=Unknown, C=Unknown
Serial number: 4e96bf49
Valid from: Thu Oct 13 12:36:57 CEST 2011 until: Wed Jan 11 11:36:57 CET
2012
+++
This will need to be fixed soon :D
Cheers
Jean-Frederic