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reflectMethod crashes for List.removeDuplicates #6175

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scabug opened this issue Aug 3, 2012 · 3 comments
Closed

reflectMethod crashes for List.removeDuplicates #6175

scabug opened this issue Aug 3, 2012 · 3 comments
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@scabug scabug commented Aug 3, 2012

object Test extends App {
  import reflect.runtime._
  val m = universe.typeOf[List[_]].members.head.asMethod
  // doesn't work
  // currentMirror.reflect (List (2, 3, 1)).reflectMethod(m)
  // works if called twice
  try { currentMirror.reflect (List (2, 3, 1)).reflectMethod(m) } catch { case _ => ; }
  currentMirror.reflect (List (2, 3, 1)).reflectMethod(m)
}
java.lang.AssertionError: assertion failed: List(object ::, object ::)
        at scala.Predef$.assert(Predef.scala:170)
        at scala.reflect.internal.Symbols$Symbol.suchThat(Symbols.scala:1525)
        at scala.reflect.internal.Symbols$ClassSymbol.companionModule0(Symbols.scala:2815)
        at scala.reflect.internal.Symbols$ClassSymbol.companionModule(Symbols.scala:2818)
        at scala.reflect.runtime.JavaMirrors$JavaMirror.followStatic(JavaMirrors.scala:546)
        at scala.reflect.runtime.JavaMirrors$JavaMirror.sOwner(JavaMirrors.scala:620)
        at scala.reflect.runtime.JavaMirrors$JavaMirror.scala$reflect$runtime$JavaMirrors$JavaMirror$$jfieldAsScala1(JavaMirrors.scala:890)
        at scala.reflect.runtime.JavaMirrors$JavaMirror$$anonfun$scala$reflect$runtime$JavaMirrors$JavaMirror$$jfieldAsScala$1.apply(JavaMirrors.scala:887)
        at scala.reflect.runtime.JavaMirrors$JavaMirror$$anonfun$scala$reflect$runtime$JavaMirrors$JavaMirror$$jfieldAsScala$1.apply(JavaMirrors.scala:887)
        at scala.reflect.runtime.JavaMirrors$JavaMirror$$anonfun$toScala$1.apply(JavaMirrors.scala:100)
        at scala.reflect.runtime.TwoWayCache.toScala(TwoWayCache.scala:38)
        at scala.reflect.runtime.JavaMirrors$JavaMirror.toScala(JavaMirrors.scala:98)
        at scala.reflect.runtime.JavaMirrors$JavaMirror.scala$reflect$runtime$JavaMirrors$JavaMirror$$jfieldAsScala(JavaMirrors.scala:887)
        at scala.reflect.runtime.JavaMirrors$JavaMirror$FromJavaClassCompleter$$anonfun$3$$anonfun$apply$mcV$sp$1.apply(JavaMirrors.scala:515)
        at scala.reflect.runtime.JavaMirrors$JavaMirror$FromJavaClassCompleter$$anonfun$3$$anonfun$apply$mcV$sp$1.apply(JavaMirrors.scala:514)
        at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:34)
        at scala.collection.mutable.ArrayOps.foreach(ArrayOps.scala:39)
        at scala.reflect.runtime.JavaMirrors$JavaMirror$FromJavaClassCompleter$$anonfun$3.apply$mcV$sp(JavaMirrors.scala:514)
        at scala.reflect.runtime.JavaMirrors$JavaMirror$FromJavaClassCompleter.completeRest(JavaMirrors.scala:529)
        at scala.reflect.runtime.JavaMirrors$JavaMirror$FromJavaClassCompleter.complete(JavaMirrors.scala:486)
        at scala.reflect.internal.Symbols$Symbol.info(Symbols.scala:1143)
        at scala.reflect.runtime.JavaMirrors$JavaMirror.scala$reflect$runtime$JavaMirrors$JavaMirror$$checkMemberOf(JavaMirrors.scala:156)
        at scala.reflect.runtime.JavaMirrors$JavaMirror$JavaInstanceMirror.reflectMethod(JavaMirrors.scala:177)
        at scala.reflect.runtime.JavaMirrors$JavaMirror$JavaInstanceMirror.reflectMethod(JavaMirrors.scala:158)
        at Test$delayedInit$body.apply(Test.scala:4)
        at scala.Function0$class.apply$mcV$sp(Function0.scala:40)
        at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:12)
        at scala.App$$anonfun$main$1.apply(App.scala:61)
        at scala.App$$anonfun$main$1.apply(App.scala:61)
        at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:59)
        at scala.collection.immutable.List.foreach(List.scala:78)
        at scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:32)
        at scala.collection.mutable.ListBuffer.foreach(ListBuffer.scala:45)
        at scala.App$class.main(App.scala:61)
        at Test$.main(Test.scala:1)
        at Test.main(Test.scala)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at scala.tools.nsc.util.ScalaClassLoader$$anonfun$run$1.apply(ScalaClassLoader.scala:71)
        at scala.tools.nsc.util.ScalaClassLoader$class.asContext(ScalaClassLoader.scala:31)
        at scala.tools.nsc.util.ScalaClassLoader$URLClassLoader.asContext(ScalaClassLoader.scala:139)
        at scala.tools.nsc.util.ScalaClassLoader$class.run(ScalaClassLoader.scala:71)
        at scala.tools.nsc.util.ScalaClassLoader$URLClassLoader.run(ScalaClassLoader.scala:139)
        at scala.tools.nsc.CommonRunner$class.run(ObjectRunner.scala:28)
        at scala.tools.nsc.ObjectRunner$.run(ObjectRunner.scala:45)
        at scala.tools.nsc.CommonRunner$class.runAndCatch(ObjectRunner.scala:35)
        at scala.tools.nsc.ObjectRunner$.runAndCatch(ObjectRunner.scala:45)
        at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:70)
        at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:92)
        at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:101)
        at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)
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@scabug scabug commented Aug 3, 2012

Imported From: https://issues.scala-lang.org/browse/SI-6175?orig=1
Reporter: @xeno-by
Other Milestones: 2.10.0

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@scabug scabug commented Aug 7, 2012

@scabug scabug closed this Aug 7, 2012
@scabug scabug added this to the 2.10.0-M6 milestone Apr 7, 2017
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