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dkomanov/FutureException2.scala

Created May 23, 2020 22:29
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[writing-async-app-in-scala-part-2] Unsafe Exception Propagation
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FutureException2.scala
def innocentFunction(param: AnyRef): Future[Int] = {
require(param != null)
Future.successful(42)
}
innocentFunction(null)
.map(_ => throw new IllegalStateException)
// an IllegalArgumentException will be thrown before map call
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