Fixes an issue with non-platform agnostic Cassandra tests data storage.

Signed-off-by: Paulo Pires <pjpires@gmail.com>
Updated Guava version, since r08 doesn't have the needed AtomicDouble class.

Signed-off-by: Paulo Pires <pjpires@gmail.com>
Fixes broken Cassandra tests.

Signed-off-by: Paulo Pires <pjpires@gmail.com>