Replace Future.onFailure with Future.onComplete

src/main/scala/com/github/shadowsocks/package.scala

@@ -2,12 +2,16 @@ package com.github
 
 import scala.concurrent.ExecutionContext.Implicits.global
 import scala.concurrent.Future
+import scala.util.{Failure, Try}
 
 /**
   * @author Mygod
   */
 package object shadowsocks {
-  def ThrowableFuture[T](f: => T) = Future(f) onFailure {
-    case e: Throwable => e.printStackTrace()
+
+  val handleFailure: PartialFunction[Try[_], Unit] = {
+    case Failure(e) => e.printStackTrace()
   }
-}
+
+  def ThrowableFuture[T](f: => T) = Future(f) onComplete handleFailure
+}