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https://github.com/ingydotnet/graal-native-image-wasm-demo?tab=readme-ov-file
Fully automates the https://github.com/graalvm/graalvm-demos/tree/fniephaus/wasm-demo/native-image/wasm-helloworld HelloWorld Wasm demo, and it works beautifully.
But I get this error trying to compiling a Clojure uberjar. Here's the error
Error: Error loading a referenced type: com.oracle.graal.pointsto.constraints.UnsupportedFeatureException: Method com.oracle.svm.core.thread.Target_java_lang_Thread.isInterrupted() is not available in this platform.
Error encountered while parsing java.lang.VirtualThread.runContinuation(VirtualThread.java:275)
Parsing context:
at java.lang.VirtualThread$$Lambda/0x00000000bd5f5a48.run(Unknown Source)
at jdk.internal.net.http.HttpClientImpl$SelectorManager.lambda$run$5(HttpClientImpl.java:1392)
at jdk.internal.net.http.HttpClientImpl$SelectorManager$$Lambda/0x00000000bd5b4d40.accept(Unknown Source)
at clojure.lang.PersistentVector$3.forEachRemaining(PersistentVector.java:382)
I can provide all the details tomorrow if needed.
I hope that between the Clojure and GraalVM communities, this can be worked out soon. It would be awesome!!!
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fniephaus commentedon Apr 3, 2025
Hi @ingydotnet,
Thanks for raising this ticket. The Wasm backend for GraalVM currently does not support threading, networking, and a couple of other essential features. We are continuing to work on this and hopefully not too soon, you should be able to compile your Clojure uberjar into a Wasm module.
I hope it's ok if I close this ticket for now. Please try again in a couple of months :)
roman01la commentedon Apr 25, 2025
@fniephaus hey, I just started looking into running Clojure in wasm, basic stuff works, it's amazing! Where can I follow the progress on these missing pieces?