IndexOutOfBoundsException for exceptions with no stack trace filled in

[weissjeffm]

(pst (doto (Exception.)
       (.setStackTrace (make-array java.lang.StackTraceElement 0))))

IndexOutOfBoundsException 
    clojure.lang.RT.nthFrom (RT.java:795)
    clojure.lang.RT.nth (RT.java:764)
    clj-stacktrace.utils/quartile1 (utils.clj:19)
    clj-stacktrace.utils/fence (utils.clj:36)
    clj-stacktrace.repl/find-source-width (repl.clj:95)
    clj-stacktrace.repl/pst-on (repl.clj:107)
    clj-stacktrace.repl/pst (repl.clj:117)

Now, how I end up with an exception with no stack trace in production, I am not 100% sure. I suspect it is the jvm optimization that leaves out stacktraces in recurring exceptions:
http://stackoverflow.com/questions/4659151/recurring-exception-without-a-stack-trace-how-to-reset

I should be able to work around the problem with
:jvm-opts ["-XX:-OmitStackTraceInFastThrow"]
but haven't tried it yet.

clj-stacktrace shouldn't be assuming there is a non-zero length array of StackTraceElement.

Fix should be pretty straightforward, will try to submit a pr.

[weissjeffm]

The :jvm-opts did work around the problem so that option being on by default does seem to be the root cause.

[nahuel]

I just opened a bug and an analysis before seeing this one, is related: #26