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Discuss GraalVM related topics. Use clojure 1.10.2 or newer for all new projects. Contribute to https://github.com/clj-easy/graal-docs and https://github.com/BrunoBonacci/graalvm-clojure. GraalVM slack: https://www.graalvm.org/slack-invitation/.
2020-05-13T19:48:21.251100Z
I'm trying to native compile the following:
(ns graal.me.maybe.core
(:gen-class)
(:require [clj-http.client :as client]))
(defn -main [& args]
(time
(:body (client/request
{:method :get
:url "<http://www.google.com>"}))))clj -A:uberjar
/Library/Java/JavaVirtualMachines/graalvm-ce-java11-19.3.2/Contents/Home/bin/native-image \
-H:+ReportUnsupportedElementsAtRuntime \
-H:ReflectionConfigurationFiles=reflectConfig.json \
-H:+ReportExceptionStackTraces \
-H:+TraceClassInitialization \
-jar ./target/foo-1.0.0-SNAPSHOT-standalone.jar \
foo<http://java.io|java.io>.FileNotFoundException: Could not locate clojure/core__init.class, clojure/core.clj or clojure/core.cljc on classpath..
2. I've added the --initialize-at-build-time flag. When I do this I get a bunch of build errors along the lines of "Error: No instances of http://javax.net.ssl.SSLContext". However, the image does build.
Any tips on a happy path here?
borkdude 2020-05-13T19:52:55.251600Z
@markbastian clj-http is known not to work with GraalVM. clj-http-lite is
2020-05-13T19:54:38.253500Z
Cool, I'll try that. Do you recommend ce version 20 or 19?
borkdude 2020-05-13T19:55:00.253700Z
@markbastian for SSL you must add some flags: https://github.com/borkdude/babashka/blob/master/script/compile#L44-L45
borkdude 2020-05-13T19:55:33.254500Z
I'm using 19.3.1 myself because it's LTS, more stable
borkdude 2020-05-13T19:56:34.255200Z
@markbastian also take a look at https://github.com/taylorwood/clojurl which essentially wraps clj-http-lite in a graal binary
borkdude 2020-05-13T19:57:03.255700Z
@markbastian there's also this even lighter curl wrapper: https://github.com/borkdude/babashka.curl
2020-05-13T19:58:54.256900Z
Cool, thanks! I'll check those out.