Clojure Q&A - Recent questions tagged graalvm

Cannot invoke "clojure.lang.Var.isBound()" because "clojure.lang.Compiler.LOADER" is null, potential bug?

Thu, 18 Apr 2024 16:11:35 +0000

As per discussion on slack I'm posting here the findings regarding clojure.lang.Compiler.LOADER being null during the analysis phase of GraalVM native-image run.

The full reproduction can be found here and the link to issue on Oracle GraalVM side here.

What is this issue about?

Native Image cannot be produced and throws an error during analysis phase when Clojure 1.11.2 (although the previous version of Clojure might be also affected) is used and reflection entries for java.lang.UUID and clojure.lang.Keyword are present in reflectionconfig.json.

I can't however reproduce the error prior to Clojure 1.9.0. For more information please kindly take a look into a repro.

Request: AOT-compile clojure.spec with clojure 1.10.3 rather than clojure 1.10.1

Wed, 24 Nov 2021 20:58:42 +0000

The clojure.spec.test.alpha namespace in clojure.spec 0.3.214 namepace is still AOT-compiled using the locking macro from clojure 1.10.1:

<clojure.version>1.10.1</clojure.version>

https://github.com/clojure/spec.alpha/blob/a924efab53b0465f7d2a589d4ae3c79a3826403b/pom.xml#L39

https://github.com/clojure/spec.alpha/blob/a924efab53b0465f7d2a589d4ae3c79a3826403b/src/main/clojure/clojure/spec/test/alpha.clj#L363

This old locking macro is troublesome with GraalVM native image. See CLJ-1472.

I think if you compile clojure.spec with clojure 1.10.3 then you can just keep using locking and the old locking2 workaround can be removed over here:

https://github.com/clojure/spec.alpha/blob/a924efab53b0465f7d2a589d4ae3c79a3826403b/src/main/clojure/clojure/spec/gen/alpha.clj#L17

An alternative solution would be to also use the locking2 macro in clojure.spec.test.alpha.

GraalVM for ARM (Raspberry Pi)

Tue, 06 Aug 2019 06:46:53 +0000

Hello everyone! I think I already know the answer but I would like confirmation. I don't see the possibility to download the binaries for ARM in Oracle. Is there any possibility to use GraalVM in Raspberry Pi or similar architectures? Thank you!