scala.collection.immutable.VM use of methodhandle breaks native-image

[johnynek]

This PR:

scala/scala#8779

seems to be breaking the ability to use graalvm native image for me:

here is an error output:

Error: com.oracle.graal.pointsto.constraints.UnsupportedFeatureException: 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$MH/634445912.invoke_MT(Object, Object)
[bosatsu:3147]     analysis:  57,890.61 ms,  2.52 GB
To diagnose the issue, you can add the option --report-unsupported-elements-at-runtime. The error is then reported at run time when the invoke is executed.
Detailed message:
Trace: 
	at parsing scala.collection.immutable.VM.releaseFence(VM.java:25)
Call path from entry point to scala.collection.immutable.VM.releaseFence(): 
	at scala.collection.immutable.VM.releaseFence(VM.java:25)
	at scala.collection.immutable.HashSet$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)
	at fastparse.parsers.Combinators$Repeat.toString(Combinators.scala:496)
	at java.lang.String.valueOf(String.java:2994)
	at java.nio.charset.IllegalCharsetNameException.<init>(IllegalCharsetNameException.java:55)
	at java.nio.charset.Charset.checkName(Charset.java:315)
	at com.oracle.svm.core.jdk.Target_java_nio_charset_Charset.lookup(CharsetSubstitutions.java:78)
	at java.nio.charset.Charset.isSupported(Charset.java:505)
	at com.oracle.svm.jni.JNIJavaCallWrappers.jniInvoke_ARRAY:Ljava_nio_charset_Charset_2_0002eisSupported_00028Ljava_lang_String_2_00029Z(generated:0)

Error: Use -H:+ReportExceptionStackTraces to print stacktrace of underlying exception
Error: Image build request failed with exit status 1

It seems related to this graal issue: oracle/graal#955

It's a real shame to lose the ability to get native-image in scala.

original comment here:
scala/scala#8779 (comment)

[johnynek]

my current work around is to use 2.12.11 which does not have this code and I can build. Obviously using 2.12.11 forever isn't a great long term strategy.

[SethTisue]

duplicate of #12116?

[johnynek]

Yes I think this is the same issue. Sorry for not checking carefully for duplicates.