Exception updating to 0.3.2

[markjfisher]

I'm getting the following exception going from 0.3.0 to 0.3.2:

Compiling ClojureScript.
Exception in thread "main" java.lang.NoSuchMethodError: clojure.lang.Reflector.invokeNoArgInstanceMember(Ljava/lang/Object;Ljava/lang/String;Z)Ljava/lang/Object;
at nomad$fn__504$fn__505.invoke(nomad.clj:23)
at clojure.lang.AFn.applyToHelper(AFn.java:159)
at clojure.lang.AFn.applyTo(AFn.java:151)
at clojure.core$apply.invoke(core.clj:617)
at clojure.core$memoize$fn__5049.doInvoke(core.clj:5735)
at clojure.lang.RestFn.invoke(RestFn.java:397)
at nomad$fn__504$get_hostname__507.invoke(nomad.clj:22)
at nomad$update_config.invoke(nomad.clj:169)
at clojure.lang.AFn.applyToHelper(AFn.java:161)
at clojure.lang.AFn.applyTo(AFn.java:151)
at clojure.lang.Ref.alter(Ref.java:174)
at clojure.core$alter.doInvoke(core.clj:2244)
at clojure.lang.RestFn.invoke(RestFn.java:425)
at nomad$get_current_config$fn__619.invoke(nomad.clj:179)
at clojure.lang.AFn.call(AFn.java:18)
at clojure.lang.LockingTransaction.run(LockingTransaction.java:263)
at clojure.lang.LockingTransaction.runInTransaction(LockingTransaction.java:231)
at nomad$get_current_config.invoke(nomad.clj:178)
at clojure.lang.Var.invoke(Var.java:415)
at frodo.core$init_frodo_BANG_$_config__1883.invoke(core.clj:9)
at frodo.core$init_frodo_BANG_.invoke(core.clj:11)
    ....

[jarohen]

Thanks for submitting these, will take a look :)

[jarohen]

Hi Mike - at first glance I can't see what's causing this, will need to take a more detailed look.

If you're interested, nomad.clj:23 is the last line of this snippet:

(defmacro ^:private deflocation [name & body]
  `(let [get-real-location# (memoize
                             (fn []
                               ~@body))]
     (defn- ~(symbol (str "get-" name)) []
       (or (get *location-override* (keyword '~name))
           (get-real-location#)))))

(deflocation hostname
  (.trim (:out (sh "hostname"))))

If you can spot what's up, that'd be really useful! Failing that, I'll investigate when I get a moment, but I'm afraid it's unlikely I'll get time until next week or so.

James

[jarohen]

Hmm - there weren't any version bumps in Frodo between 0.3.0 and 0.3.2. Can you confirm that this works on 0.3.0 and fails on 0.3.2 with a clean project each time?

(One of the bigger changes between these two versions was that the frodo.main namespace became AOT compiled, to help with uberjarring)

Cheers,

James

[markjfisher]

It's the clojure version i'm using. Doesn't happen if I include 1.6.0, but 1.5.1 throws the error every time, but only against frodo 0.3.2+. Tested on a simple project with only frodo bits in it.

[jarohen]

Ah, that's useful to know, thanks!

I've just looked through the changelog from 0.3.0 to 0.3.2 and it doesn't introduce anything specific to Clojure 1.6.0; indeed, the code snippet that's causing the exception hasn't changed since Nomad 0.6.1 (current is 0.6.4) - and Frodo updated from 0.6.0 to 0.6.4 between 0.3.0-rc2 and 0.3.0-rc3, so this should manifest itself in 0.3.0 as well.

Strange.

I'll leave this open for a while just in case I or somebody else figures out what's happened, but given 1.6.0 and 1.5.1 are broadly compatible I'm inclined to say that upgrading a Clojure version is a reasonable workaround.

James