Thanks a lot. So it means Clojure's `eval` is by design incompatible with SubstrateVM.
Does anyone know of others hard incompatibilities ? On Monday, November 26, 2018 at 6:16:20 PM UTC+1, Gary Trakhman wrote: > > Yes, eval will generate classes in a dynamic classloader, load them, then > call methods on the newly formed class/object except for > too-simple-to-be-interesting cases. > > On Mon, Nov 26, 2018 at 11:43 AM Khalid Jebbari <khalid....@gmail.com > <javascript:>> wrote: > >> Hi, >> >> I was doing a small experiment with Clojure and GraalVM and ended with >> this minimal reproduction case of an incompatibility between Clojure's >> `eval` and GraalVM's native-image tool (the program that compiles a JVM >> program to a native executable, based on the GraalVM's SubstrateVM >> compiler). >> >> Here's the Clojure program: >> >> (ns test-cli.main >> (:gen-class)) >> >> (set! *warn-on-reflection* true) >> >> (defn -main >> "I don't do a whole lot ... yet." >> [& args] >> (println (+ 1 1)) ;; trick to force loading clojure.lang.Numbers, not >> working >> (eval (read-string "(+ 1 1)"))) >> >> Using Clojure 1.9.0 and GraalVM version 1.0.0-rc9. >> >> When I compile it with the >> option "--report-unsupported-elements-at-runtime" (which gives a more >> precised error message), here's the output when I try executing the >> resulting executable: >> >> Exception in thread "main" java.lang.ClassNotFoundException: >> clojure.lang.Numbers, compiling:(NO_SOURCE_PATH:0:0) >> at java.lang.Throwable.<init>(Throwable.java:287) >> at java.lang.Exception.<init>(Exception.java:84) >> at java.lang.RuntimeException.<init>(RuntimeException.java:80) >> at >> clojure.lang.Compiler$CompilerException.<init>(Compiler.java:6804) >> at clojure.lang.Compiler.analyzeSeq(Compiler.java:7010) >> at clojure.lang.Compiler.analyze(Compiler.java:6773) >> at clojure.lang.Compiler.analyze(Compiler.java:6729) >> at clojure.lang.Compiler.analyzeSeq(Compiler.java:6998) >> at clojure.lang.Compiler.analyze(Compiler.java:6773) >> at clojure.lang.Compiler.analyze(Compiler.java:6729) >> at clojure.lang.Compiler$BodyExpr$Parser.parse(Compiler.java:6100) >> at clojure.lang.Compiler$FnMethod.parse(Compiler.java:5460) >> at clojure.lang.Compiler$FnExpr.parse(Compiler.java:4022) >> at clojure.lang.Compiler.analyzeSeq(Compiler.java:7001) >> at clojure.lang.Compiler.analyze(Compiler.java:6773) >> at clojure.lang.Compiler.eval(Compiler.java:7059) >> at clojure.lang.Compiler.eval(Compiler.java:7025) >> at clojure.core$eval.invokeStatic(core.clj:3206) >> at test_cli.main$_main.invokeStatic(main.clj:7) >> at test_cli.main$_main.doInvoke(main.clj:7) >> at clojure.lang.RestFn.invoke(RestFn.java:397) >> at clojure.lang.AFn.applyToHelper(AFn.java:152) >> at clojure.lang.RestFn.applyTo(RestFn.java:132) >> at test_cli.main.main(Unknown Source) >> at >> com.oracle.svm.core.JavaMainWrapper.run(JavaMainWrapper.java:164) >> Caused by: java.lang.ClassNotFoundException: clojure.lang.Numbers >> at java.lang.Throwable.<init>(Throwable.java:287) >> at java.lang.Exception.<init>(Exception.java:84) >> at >> java.lang.ReflectiveOperationException.<init>(ReflectiveOperationException.java:75) >> at >> java.lang.ClassNotFoundException.<init>(ClassNotFoundException.java:82) >> at >> com.oracle.svm.core.hub.ClassForNameSupport.forName(ClassForNameSupport.java:51) >> at >> com.oracle.svm.core.hub.DynamicHub.forName(DynamicHub.java:1036) >> at clojure.lang.RT.classForName(RT.java:2204) >> at clojure.lang.RT.classForNameNonLoading(RT.java:2217) >> at clojure.lang.Compiler$HostExpr.maybeClass(Compiler.java:1041) >> at clojure.lang.Compiler$HostExpr$Parser.parse(Compiler.java:982) >> at clojure.lang.Compiler.analyzeSeq(Compiler.java:7003) >> ... 20 more >> >> I'm no expert in Java/JVM and would like to understand the problem. >> According to the SubstrateVM documentation ( >> https://github.com/oracle/graal/blob/master/substratevm/LIMITATIONS.md) >> it can't compile Dynamic Class Loading/Unloading. Is Clojure's `eval` doing >> such dynamic loading? Or doing something else not supported by SubstrateVM >> as said in the documentation? >> >> Thanks *a lot* in advance for you answers. >> >> -- >> 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 >> <javascript:> >> 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 <javascript:> >> 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 <javascript:>. >> 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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