Import many classes with the same name

[Christian Sperandio]

Hi, 

I'm writing a wrapper to use JavaFX with Clojure. But I hava an issue.

I called a class javafx.clojure.Application, then in a source code I wrote:

(ns javafx-clj.wrapper

  (:import javafx.clojure.Application)

  (:import javafx.application.Application javafx.application.Platform))

...

But when I try to call a javafx.clojure.Application's function, I get that exception:

java.lang.IllegalStateException: Application already refers to: class javafx.clojure.Application in namespace: javafx-clj.wrapper

 at clojure.lang.Namespace.referenceClass (Namespace.java:140)

    clojure.lang.Namespace.importClass (Namespace.java:158)

    clojure.lang.Namespace.importClass (Namespace.java:164)

    javafx_clj.wrapper$eval1044$loading__4784__auto____1045.invoke (wrapper.clj:1)

    javafx_clj.wrapper$eval1044.invoke (wrapper.clj:1)

    clojure.lang.Compiler.eval (Compiler.java:6511)

    clojure.lang.Compiler.eval (Compiler.java:6501)

    clojure.lang.Compiler.load (Compiler.java:6952)

    user$eval1040.invoke (NO_SOURCE_FILE:1)

    clojure.lang.Compiler.eval (Compiler.java:6511)

    clojure.lang.Compiler.eval (Compiler.java:6477)

    clojure.core$eval.invoke (core.clj:2797)

    clojure.main$repl$read_eval_print__6405.invoke (main.clj:245)

    clojure.main$repl$fn__6410.invoke (main.clj:266)

    clojure.main$repl.doInvoke (main.clj:266)

    clojure.lang.RestFn.invoke (RestFn.java:1096)

    clojure.tools.nrepl.middleware.interruptible_eval$evaluate$fn__495.invoke (interruptible_eval.clj:57)

    clojure.lang.AFn.applyToHelper (AFn.java:159)

    clojure.lang.AFn.applyTo (AFn.java:151)

    clojure.core$apply.invoke (core.clj:601)

    clojure.core$with_bindings_STAR_.doInvoke (core.clj:1771)

    clojure.lang.RestFn.invoke (RestFn.java:425)

    clojure.tools.nrepl.middleware.interruptible_eval$evaluate.invoke (interruptible_eval.clj:42)

    clojure.tools.nrepl.middleware.interruptible_eval$interruptible_eval$fn__536$fn__538.invoke (interruptible_eval.clj:170)

    clojure.core$comp$fn__4034.invoke (core.clj:2278)

    clojure.tools.nrepl.middleware.interruptible_eval$run_next$fn__529.invoke (interruptible_eval.clj:137)

    clojure.lang.AFn.run (AFn.java:24)

    java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1110)

    java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:603)

    java.lang.Thread.run (Thread.java:722)

I tried to replace the import clause by use for my javafx.clojure.Application, but it doesn't work. I get the same error.

Does anyone know why?

Chris

[juan.facorro]

One would have the same problem importing those classes in Java code. It's just not possible to import two classes with the same name, because there is no way to tell which one you are referring to when you use the class' name only (e.g. (Application.)).

However it's possible to just import one of them and then refer to the other one by its FQN (fully qualified name):

(ns javafx-clj.wrapper

  (:import [javafx.application Application Platform]))

; This one is javafx.application.Application

(Application.)

; and this one is javafx.clojure.Application

(javafx.clojure.Application.)

Hope it helps,

J

[Christian Sperandio]

I just tried but I get the same error.