That's very strange. I'd need more detailed instructions to try to reproduce this. But the class it can't find is new in Java 8 so it looks like you have a JVM version issue. I suspect that this shows up in Cursive but not in lein because you're using a different JDK version in your Cursive project than the one that is picked up on the command line.
I'm guessing that java -version on the command line will show Java 8, but the one you have configured in your Cursive project (File->Project Structure->Project->Project SDK and File->Project Structure->Modules->(your module)->Module SDK) is less than that. Is that the case? On 22 August 2015 at 23:58, William la Forge <laforg...@gmail.com> wrote: > Bingo! Everything works when I revert to clojure 1.6.0. > > > On Saturday, August 22, 2015 at 5:49:24 PM UTC-4, William la Forge wrote: >> >> More weirdness. This works: >> >> (let [^Object aa (.seq a5)] >> (println (.getClass aa))) >> >> >> But not this: >> >> >> (let [^AASetSequence aa (.seq a5)] >> (println (.getClass aa)))) >> >> >> Nor, of course, this: >> >> >> (let [^AASetSequence aa (.seq a5)] >> (println (.count aa))) >> >> >> Here's the error I'm getting now: >> >> >> Information:8/22/2015 5:45 PM - Compilation completed with 1 error and 0 >> warnings in 2s 743ms >> C:\Users\Bill\Documents\GitHub\aa-collections\test\aa_collections\immutable_set_test.clj >> Error:(26, 12) clojure: java.lang.NoClassDefFoundError: >> java/util/function/UnaryOperator, >> compiling:(aa_collections/immutable_set_test.clj:26:12) >> java.lang.ClassNotFoundException: java.util.function.UnaryOperator >> at java.net.URLClassLoader$1.run (URLClassLoader.java:366) >> java.net.URLClassLoader$1.run (URLClassLoader.java:355) >> java.security.AccessController.doPrivileged (AccessController.java:-2) >> java.net.URLClassLoader.findClass (URLClassLoader.java:354) >> java.lang.ClassLoader.loadClass (ClassLoader.java:425) >> java.lang.ClassLoader.loadClass (ClassLoader.java:358) >> java.lang.Class.getDeclaredMethods0 (Class.java:-2) >> java.lang.Class.privateGetDeclaredMethods (Class.java:2570) >> java.lang.Class.privateGetPublicMethods (Class.java:2690) >> java.lang.Class.getMethods (Class.java:1467) >> >> >> >> On Saturday, August 22, 2015 at 5:37:13 PM UTC-4, William la Forge wrote: >>> >>> Hi Colin! >>> >>> I've set it up to compile all. No doubt this will be very helpful as I >>> will no longer need to compile using an external `lein compile`. But run >>> still dies on the call (.getClass x), when x is a gen-class compiled class >>> instance. >>> >>> On the other hand I still can not credit this as a Cursive bug. Calling >>> methods on gen-class compiled class instances is to basic. But it is likely >>> related to Cursive, as 'lein test' works great. >>> >>> On Saturday, August 22, 2015 at 4:24:40 PM UTC-4, Colin Fleming wrote: >>>> >>>> Hi William, >>>> >>>> Right, you'll need to tell Cursive to compile that namespace in >>>> *Settings->Build, >>>> Execution, Deployment->Compiler->Clojure Compiler*. Once you've done >>>> that things should work. Cursive doesn't currently pick the set of >>>> namespaces to be compiled up from lein - it probably should. >>>> >>>> Cheers, >>>> Colin >>>> >>>> On 22 August 2015 at 17:17, William la Forge <lafo...@gmail.com> wrote: >>>> >>>>> I searched and did not see anything recent on gen-class problems in >>>>> Cursive. I find when I have a reference to a gen-class instance that >>>>> instance? works in Cursive but .getClass does not. (Everything works with >>>>> lein, of course.) >>>>> >>>>> What I am trying to do is to call the count method via (.count x). >>>>> What I do not want to do is call the clojure count function, (count x). >>>>> Again, no issues with lein. >>>>> >>>>> I suspect I simply have not completed the setup cursive for compiles >>>>> or something, as all the complaints about cursive/gen-class that I could >>>>> find were a year old. >>>>> >>>>> I know I need to switch to emacs at some times. I mean, it's only been >>>>> 30 years since I used it last. :D >>>>> >>>>> Here's the error I'm getting: >>>>> >>>>> Exception in thread "main" java.lang.NoClassDefFoundError: >>>>> java/util/function/UnaryOperator, >>>>> compiling:(C:\Users\Bill\Documents\GitHub\aa-collections\test\aa_collections\immutable_set_test.clj:22:10) >>>>> at clojure.lang.Compiler.analyzeSeq(Compiler.java:6730) >>>>> at clojure.lang.Compiler.analyze(Compiler.java:6524) >>>>> at clojure.lang.Compiler.analyzeSeq(Compiler.java:6711) >>>>> at clojure.lang.Compiler.analyze(Compiler.java:6524) >>>>> at clojure.lang.Compiler.analyze(Compiler.java:6485) >>>>> at clojure.lang.Compiler$InvokeExpr.parse(Compiler.java:3791) >>>>> at clojure.lang.Compiler.analyzeSeq(Compiler.java:6725) >>>>> at clojure.lang.Compiler.analyze(Compiler.java:6524) >>>>> at clojure.lang.Compiler.analyze(Compiler.java:6485) >>>>> at clojure.lang.Compiler$BodyExpr$Parser.parse(Compiler.java:5861) >>>>> at clojure.lang.Compiler$LetExpr$Parser.parse(Compiler.java:6179) >>>>> at clojure.lang.Compiler.analyzeSeq(Compiler.java:6723) >>>>> at clojure.lang.Compiler.analyze(Compiler.java:6524) >>>>> at clojure.lang.Compiler.analyze(Compiler.java:6485) >>>>> at clojure.lang.Compiler$BodyExpr$Parser.parse(Compiler.java:5861) >>>>> at clojure.lang.Compiler$FnMethod.parse(Compiler.java:5296) >>>>> at clojure.lang.Compiler$FnExpr.parse(Compiler.java:3925) >>>>> at clojure.lang.Compiler.analyzeSeq(Compiler.java:6721) >>>>> at clojure.lang.Compiler.analyze(Compiler.java:6524) >>>>> at clojure.lang.Compiler.eval(Compiler.java:6779) >>>>> at clojure.lang.Compiler.load(Compiler.java:7227) >>>>> at clojure.lang.Compiler.loadFile(Compiler.java:7165) >>>>> at clojure.main$load_script.invoke(main.clj:275) >>>>> at clojure.main$script_opt.invoke(main.clj:337) >>>>> at clojure.main$main.doInvoke(main.clj:421) >>>>> at clojure.lang.RestFn.invoke(RestFn.java:408) >>>>> at clojure.lang.Var.invoke(Var.java:379) >>>>> at clojure.lang.AFn.applyToHelper(AFn.java:154) >>>>> at clojure.lang.Var.applyTo(Var.java:700) >>>>> at clojure.main.main(main.java:37) >>>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >>>>> at >>>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) >>>>> at >>>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >>>>> at java.lang.reflect.Method.invoke(Method.java:606) >>>>> at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140) >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Clojure" group. >>>>> To post to this group, send email to clo...@googlegroups.com >>>>> Note that posts from new members are moderated - please be patient >>>>> with your first post. >>>>> To unsubscribe from this group, send email to >>>>> clojure+u...@googlegroups.com >>>>> For more options, visit this group at >>>>> http://groups.google.com/group/clojure?hl=en >>>>> --- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Clojure" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to clojure+u...@googlegroups.com. >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> >>>> -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > --- > You received this message because you are subscribed to the Google Groups > "Clojure" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to clojure+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Clojure" group. 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