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import collection.{JavaConversions, mutable, concurrent}
import JavaConversions._
import java.util.concurrent.{ConcurrentHashMap => CHM}
object Foo {
def buildCache2_9_simple[K <: AnyRef, V <: AnyRef]: concurrent.Map[K, V] =
mapAsScalaConcurrentMap(new CHM())
def buildCache2_9_implicit[K <: AnyRef, V <: AnyRef]: concurrent.Map[K, V] =
new CHM[K, V]()
}
object Bar {
def assertType[T](t: T) = t
val a = new CHM[String, String]() += (("", ""))
assertType[concurrent.Map[String, String]](a)
}
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