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class Base[@specialized(Double) A](val a: A)
class Derived(override val a: Double) extends Base[Double](a)
object Test {
def main(args: Array[String]) {
val b: Base[Double] = new Derived(10)
b.a
println(runtime.BoxesRunTime.doubleBoxCount)
val der = new Derived(10)
der.a
println(runtime.BoxesRunTime.doubleBoxCount)
}
}
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