Guava 16.0 is incompatable with datomic cassandra bridge. (#767)
Guava 16.0 is incompatable with datomic cassandra bridge. (#767)

Upgrade to 17.0. This shows up in a lein repl. Outside of a lein repl,
you may or may not get a newer version based on how you handle
classpath construction.
twosigma/Cook,twosigma/Cook,twosigma/Cook