Fail to bind JNI method to Scala's Object

Question

I found that

It cannot bind a JNI method implemented in C to Scala's object, demo as this subproject, with errors going as

Exception in thread "sbt-bg-threads-1" java.lang.UnsatisfiedLinkError: HelloWorld$.hi()V
        at HelloWorld$.hi(Native Method)
        at Main$.delayedEndpoint$Main$1(Main.scala:3)
        at Main$delayedInit$body.apply(Main.scala:1)
        at scala.Function0.apply$mcV$sp(Function0.scala:39)
        at scala.Function0.apply$mcV$sp$(Function0.scala:39)
        at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:17)
        at scala.App.$anonfun$main$1(App.scala:76)
        at scala.App.$anonfun$main$1$adapted(App.scala:76)
        at scala.collection.IterableOnceOps.foreach(IterableOnce.scala:563)
        at scala.collection.IterableOnceOps.foreach$(IterableOnce.scala:561)
        at scala.collection.AbstractIterable.foreach(Iterable.scala:926)
        at scala.App.main(App.scala:76)
        at scala.App.main$(App.scala:74)
        at Main$.main(Main.scala:1)
        at Main.main(Main.scala)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at sbt.Run.invokeMain(Run.scala:143)
        at sbt.Run.execute$1(Run.scala:93)
        at sbt.Run.$anonfun$runWithLoader$5(Run.scala:120)
        at sbt.Run$.executeSuccess(Run.scala:186)
        at sbt.Run.runWithLoader(Run.scala:120)
        at sbt.Defaults$.$anonfun$bgRunTask$6(Defaults.scala:1983)
        at sbt.Defaults$.$anonfun$termWrapper$2(Defaults.scala:1922)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
        at scala.util.Try$.apply(Try.scala:213)
        at sbt.internal.BackgroundThreadPool$BackgroundRunnable.run(DefaultBackgroundJobService.scala:369)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)

while it's good with Java as indirection, demo as this subproject

Reproduction repository goes here.

Really appreciate if someone could help me out.

Fail to bind JNI method to Scala's Object

0 Answers