exception when traversing A1 with A2
exception when traversing A1 with A2
exception when traversing A1 with A2 with A3 with ScalaObject
exception when traversing abstract trait A extends A1 with A2 with A3 with ScalaObject
exception when traversing package  {
  abstract trait A1 extends java.lang.Object with ScalaObject;
  abstract trait A2 extends java.lang.Object with ScalaObject;
  abstract trait A3 extends java.lang.Object with ScalaObject;
  abstract trait A extends A1 with A2 with A3 with ScalaObject
}
Exception in thread "main" java.lang.NullPointerException
        at scala.tools.nsc.transform.UnCurry.scala$tools$nsc$transform$UnCurry$$expandAlias(UnCurry.scala:49)
        at scala.tools.nsc.transform.UnCurry$$anon$1.apply(UnCurry.scala:52)
        at scala.tools.nsc.transform.UnCurry$$anon$1.apply(UnCurry.scala:51)
        at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.uncurryTreeType(UnCurry.scala:127)
        at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:463)
        at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:103)
        at scala.tools.nsc.ast.Trees$Transformer.transformTemplate(Trees.scala:1304)
        at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:1294)
        at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:46)\

        at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:451)
        at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:103)
        at scala.tools.nsc.ast.Trees$Transformer$$anonfun$29.apply(Trees.scala:1302)
        at scala.tools.nsc.ast.Trees$Transformer$$anonfun$29.apply(Trees.scala:1302)
        at scala.List$.loop$0(List.scala:243)
        at scala.List$.mapConserve(List.scala:260)
        at scala.tools.nsc.ast.Trees$Transformer.transformTrees(Trees.scala:1302)
        at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:1232)
        at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.scala$tools$nsc$transform$TypingTransf\
ormers$TypingTrans
former$$super$transform(TypingTransformers.scala:44)
        at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonfun$0.apply(TypingTransformers.sc\
ala:44)
        at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonfun$0.apply(TypingTransformers.sc\
ala:44)
        at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:1326)
        at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:33)
        at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:27)
        at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)\

        at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.scala$tools$nsc$transform$UnCurry$UnCurryTransfo\
rmer$$super$transf
orm(UnCurry.scala:373)
        at scala.tools.nsc.transform.UnCurry$UnCurryTransformer$$anonfun$16.apply(UnCurry.scala:448)
        at scala.tools.nsc.transform.UnCurry$UnCurryTransformer$$anonfun$16.apply(UnCurry.scala:448)
        at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.withInConstructorFlag$0(UnCurry.scala:351)
        at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:448)
        at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:103)
        at scala.tools.nsc.ast.Trees$Transformer.transformTemplate(Trees.scala:1304)
        at scala.tools.nsc.ast.Trees$Transformer$$anonfun$22.apply(Trees.scala:1200)
        at scala.tools.nsc.ast.Trees$Transformer$$anonfun$22.apply(Trees.scala:1200)
        at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:1326)
        at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:33)
        at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:27)
        at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:1199)
        at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:46)\

        at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:451)
        at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:103)
        at scala.tools.nsc.ast.Trees$Transformer$$anonfun$35.apply(Trees.scala:1320)
        at scala.tools.nsc.ast.Trees$Transformer$$anonfun$35.apply(Trees.scala:1318)
        at scala.List$.loop$0(List.scala:243)
        at scala.List$.mapConserve(List.scala:260)
        at scala.tools.nsc.ast.Trees$Transformer.transformStats(Trees.scala:1318)
        at scala.tools.nsc.ast.Trees$Transformer$$anonfun$21.apply(Trees.scala:1196)
        at scala.tools.nsc.ast.Trees$Transformer$$anonfun$21.apply(Trees.scala:1196)
        at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:1326)
        at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:33)
        at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:27)
        at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:1195)
        at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:46)\

        at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.mainTransform(UnCurry.scala:451)
        at scala.tools.nsc.transform.UnCurry$UnCurryTransformer.transform(UnCurry.scala:103)
        at scala.tools.nsc.ast.Trees$Transformer.transformUnit(Trees.scala:1321)
        at scala.tools.nsc.transform.Transform$Phase.apply(Transform.scala:30)
        at scala.tools.nsc.Global$GlobalPhase.applyPhase(Global.scala:245)
        at scala.tools.nsc.Global$GlobalPhase$$anonfun$2.apply(Global.scala:234)
        at scala.tools.nsc.Global$GlobalPhase$$anonfun$2.apply(Global.scala:234)
        at scala.Iterator$class.foreach(Iterator.scala:364)
        at scala.collection.mutable.ListBuffer$$anon$0.foreach(ListBuffer.scala:245)
        at scala.tools.nsc.Global$GlobalPhase.run(Global.scala:234)
        at scala.tools.nsc.Global$Run.compileSources(Global.scala:502)
        at scala.tools.nsc.Global$Run.compile(Global.scala:580)
        at scala.tools.nsc.Main$.process(Main.scala:61)
        at scala.tools.nsc.Main$.main(Main.scala:81)
        at scala.tools.nsc.Main.main(Main.scala)