To connect Cassandra DB from soap ui what are all the necessary jar files to be added. Please help.

We have starred our new project as part of DB connection we need to connect Cassandra DB from soap ui. When I tried to connect i have end up with the following error '

Connection error : com.eviware.soapui.support.SoapUIException: Failed to init connection for drvr [org.apache.cassandra.cql.jdbc.CassandraDriver], connectionString [jdbc:cassandra://cassdb244.fsc.fedex.com:9042/Cassandra]' please help us

Thanks,

Ganesh