@Deprecated(since="9")
    public Boolean(boolean value) {
        this.value = value;
    }

It is rarely appropriate to use this constructor. The static factory valueOf(boolean) is generally a better choice, as it is likely to yield significantly better space and time performance. Also consider using the final fields TRUE and FALSE if possible.

(not (Boolean/valueOf false))
=> true
(not (Boolean/valueOf nil))
=> true

(defn with-datomic-db [t]
  (prepare-datomic-db ...)
  (t)
  (d/delete-database db-uri))