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java.lang.NullPointerException: 	at someFunc$$anonfun$go$1.apply$mcII$sp(someFunc.scala:7)	at someFunc$$anonfun$go$1.apply(someFunc.scala:6)	at someFunc$$anonfun$go$1.apply(someFunc.scala:6)	at scala.collection.Iterator$$anon$11.next(Iterator.scala:328)	at scala.collection.Iterator$$anon$10.next(Iterator.scala:312)	at scala.collection.Iterator$class.foreach(Iterator.scala:727)	at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)	at scala.collection.generic.Growable$class.$plus$plus$eq(Growable.scala:48)	at scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:103)