Clojure 1.5.1
user=> (set! *warn-on-reflection* true)
true
user=> (def array (object-array '("foo" "bar")))
#'user/array
user=> (.substring ^String (aget array 0) 0 0)
Reflection warning, NO_SOURCE_PATH:3:13 - call to aget can't be resolved.
""
user=>