2.12.12: Regression in HashSet/HasMap with graal native-image

[dieu]

reproduction steps

Using the latest 2.12.12 release with graal native-image is throws error in runtime.

problem

The problem with the usage of MethodHandler in https://github.com/scala/scala/blob/2.12.x/src/library/scala/collection/immutable/VM.java#L24

parameters to used: --no-server --allow-incomplete-classpath --no-fallback --report-unsupported-elements-at-runtime --initialize-at-build-time=scala

Exception in thread "main" com.oracle.svm.core.jdk.UnsupportedFeatureError: Invoke with MethodHandle argument could not be reduced to at most a single call or single field access. The method handle must be a compile time constant, e.g., be loaded from a `static final` field. Method that contains the method handle invocation: java.lang.invoke.LambdaForm$MH/1405562130.invoke_MT(Object, Object)
	at com.oracle.svm.core.util.VMError.unsupportedFeature(VMError.java:86)
	at scala.collection.immutable.VM.releaseFence(VM.java:25)
	at scala.collection.immutable.HashSet$HashSetBuilder.result(HashSet.scala:1283)
	at scala.collection.immutable.Set$SetBuilderImpl.result(Set.scala:344)
	at scala.collection.immutable.Set$SetBuilderImpl.result(Set.scala:329)
	at scala.collection.generic.GenericCompanion.apply(GenericCompanion.scala:57)

[dieu]

similar substitution for scala.collection.immutable.VM as here: plokhotnyuk/jsoniter-scala@e089f06 -- works as well as a workaround for 2.12.12

[dwijnand]

Hi. What version of GraalVM and for what Java 8 or Java 11?

[dieu]

Java 8 and 20.1.0

…

On Fri, Jul 17, 2020 at 12:58 AM Dale Wijnand ***@***.***> wrote: Hi. What version of GraalVM and for what Java 8 or Java 11? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#12084 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAALP7RE2G7CXN7X2D356C3R4AABNANCNFSM4O5AMKWA> .

[SethTisue]

as with #12116, this may progress on the Graal side: #12116 (comment)

[SethTisue]

and workarounds and knowhow are accumulating at https://github.com/scalameta/sbt-native-image