Packahe testing/ca-certificates-utils seems to have a packaging problem:
...
:: Starting full system upgrade...
:: Replace ca-certificates-java with testing/ca-certificates-utils? [Y/n]
...
(7/7) loading package files
[####################################] 100%
(7/7) checking for file conflicts
[####################################] 100%
error: failed to commit transaction (conflicting files)
ca-certificates-utils: /etc/ssl/certs/java/cacerts exists in filesystem
Errors occurred, no packages were upgraded.