diff --git a/akka-io/src/main/scala/akka/io/Tcp.scala b/akka-io/src/main/scala/akka/io/Tcp.scala
index 7bb13987d3..7df771caf1 100644
--- a/akka-io/src/main/scala/akka/io/Tcp.scala
+++ b/akka-io/src/main/scala/akka/io/Tcp.scala
@@ -132,11 +132,11 @@ object Tcp extends ExtensionKey[TcpExt] {
 
   case class Connect(remoteAddress: InetSocketAddress,
                      localAddress: Option[InetSocketAddress] = None,
-                     options: immutable.Traversable[SocketOption] = Nil) extends Command
+                     options: Traversable[SocketOption] = Nil) extends Command
   case class Bind(handler: ActorRef,
                   endpoint: InetSocketAddress,
                   backlog: Int = 100,
-                  options: immutable.Traversable[SocketOption] = Nil) extends Command
+                  options: Traversable[SocketOption] = Nil) extends Command
   case class Register(handler: ActorRef) extends Command
   case object Unbind extends Command
 
@@ -185,7 +185,7 @@ object Tcp extends ExtensionKey[TcpExt] {
   case class RegisterOutgoingConnection(channel: SocketChannel)
   case class RegisterServerSocketChannel(channel: ServerSocketChannel)
   case class RegisterIncomingConnection(channel: SocketChannel, handler: ActorRef,
-                                        options: immutable.Traversable[SocketOption]) extends Command
+                                        options: Traversable[SocketOption]) extends Command
   case class Retry(command: Command, retriesLeft: Int) { require(retriesLeft >= 0) }
   case object ChannelConnectable
   case object ChannelAcceptable
diff --git a/akka-io/src/main/scala/akka/io/TcpConnection.scala b/akka-io/src/main/scala/akka/io/TcpConnection.scala
index b08ba8df48..632b28bd59 100644
--- a/akka-io/src/main/scala/akka/io/TcpConnection.scala
+++ b/akka-io/src/main/scala/akka/io/TcpConnection.scala
@@ -100,8 +100,8 @@ abstract class TcpConnection(val selector: ActorRef,
 
   // AUXILIARIES and IMPLEMENTATION
 
-  /** use in subclasses to start the common machinery above once a channel is connected */
-  def completeConnect(commander: ActorRef, options: immutable.Traversable[SocketOption]): Unit = {
+  /** used in subclasses to start the common machinery above once a channel is connected */
+  def completeConnect(commander: ActorRef, options: Traversable[SocketOption]): Unit = {
     options.foreach(_.afterConnect(channel.socket))
 
     commander ! Connected(
diff --git a/akka-io/src/main/scala/akka/io/TcpIncomingConnection.scala b/akka-io/src/main/scala/akka/io/TcpIncomingConnection.scala
index 902dde0233..5a4a9a5d94 100644
--- a/akka-io/src/main/scala/akka/io/TcpIncomingConnection.scala
+++ b/akka-io/src/main/scala/akka/io/TcpIncomingConnection.scala
@@ -17,7 +17,7 @@ class TcpIncomingConnection(_selector: ActorRef,
                             _channel: SocketChannel,
                             _tcp: TcpExt,
                             handler: ActorRef,
-                            options: immutable.Traversable[SocketOption])
+                            options: Traversable[SocketOption])
   extends TcpConnection(_selector, _channel, _tcp) {
 
   context.watch(handler) // sign death pact
diff --git a/akka-io/src/main/scala/akka/io/TcpListener.scala b/akka-io/src/main/scala/akka/io/TcpListener.scala
index 5bf456faf3..fac5b90c9c 100644
--- a/akka-io/src/main/scala/akka/io/TcpListener.scala
+++ b/akka-io/src/main/scala/akka/io/TcpListener.scala
@@ -18,7 +18,7 @@ class TcpListener(selector: ActorRef,
                   backlog: Int,
                   bindCommander: ActorRef,
                   settings: TcpExt#Settings,
-                  options: immutable.Traversable[SocketOption]) extends Actor with ActorLogging {
+                  options: Traversable[SocketOption]) extends Actor with ActorLogging {
 
   context.watch(handler) // sign death pact
   val channel = {
diff --git a/akka-io/src/main/scala/akka/io/TcpOutgoingConnection.scala b/akka-io/src/main/scala/akka/io/TcpOutgoingConnection.scala
index b33e6605e8..fcaecc0bc4 100644
--- a/akka-io/src/main/scala/akka/io/TcpOutgoingConnection.scala
+++ b/akka-io/src/main/scala/akka/io/TcpOutgoingConnection.scala
@@ -20,7 +20,7 @@ class TcpOutgoingConnection(_selector: ActorRef,
                             commander: ActorRef,
                             remoteAddress: InetSocketAddress,
                             localAddress: Option[InetSocketAddress],
-                            options: immutable.Traversable[SocketOption])
+                            options: Traversable[SocketOption])
   extends TcpConnection(_selector, TcpOutgoingConnection.newSocketChannel(), _tcp) {
 
   context.watch(commander) // sign death pact
@@ -34,11 +34,12 @@ class TcpOutgoingConnection(_selector: ActorRef,
   else {
     selector ! RegisterOutgoingConnection(channel)
     context.become(connecting(commander, options))
+    Seq(1,2,3)
   }
 
   def receive: Receive = PartialFunction.empty
 
-  def connecting(commander: ActorRef, options: immutable.Traversable[SocketOption]): Receive = {
+  def connecting(commander: ActorRef, options: Traversable[SocketOption]): Receive = {
     case ChannelConnectable ⇒
       try {
         val connected = channel.finishConnect()