From d539468ac9754db7d92352c58b1ff2e70e6a2044 Mon Sep 17 00:00:00 2001
From: Viktor Klang <viktor.klang@gmail.com>
Date: Sun, 1 Nov 2015 21:03:28 +0100
Subject: [PATCH] Sprinkling finals on javadsl classes

---
 akka-stream/src/main/scala/akka/stream/javadsl/BidiFlow.scala | 2 +-
 akka-stream/src/main/scala/akka/stream/javadsl/Sink.scala     | 2 +-
 akka-stream/src/main/scala/akka/stream/javadsl/Source.scala   | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/akka-stream/src/main/scala/akka/stream/javadsl/BidiFlow.scala b/akka-stream/src/main/scala/akka/stream/javadsl/BidiFlow.scala
index ceb811904f..8de18c5eae 100644
--- a/akka-stream/src/main/scala/akka/stream/javadsl/BidiFlow.scala
+++ b/akka-stream/src/main/scala/akka/stream/javadsl/BidiFlow.scala
@@ -75,7 +75,7 @@ object BidiFlow {
 
 }
 
-class BidiFlow[-I1, +O1, -I2, +O2, +Mat](delegate: scaladsl.BidiFlow[I1, O1, I2, O2, Mat]) extends Graph[BidiShape[I1, O1, I2, O2], Mat] {
+final class BidiFlow[-I1, +O1, -I2, +O2, +Mat](delegate: scaladsl.BidiFlow[I1, O1, I2, O2, Mat]) extends Graph[BidiShape[I1, O1, I2, O2], Mat] {
   private[stream] override def module = delegate.module
   override def shape = delegate.shape
 
diff --git a/akka-stream/src/main/scala/akka/stream/javadsl/Sink.scala b/akka-stream/src/main/scala/akka/stream/javadsl/Sink.scala
index b53128bb01..f32f024c76 100644
--- a/akka-stream/src/main/scala/akka/stream/javadsl/Sink.scala
+++ b/akka-stream/src/main/scala/akka/stream/javadsl/Sink.scala
@@ -162,7 +162,7 @@ object Sink {
  * A `Sink` is a set of stream processing steps that has one open input and an attached output.
  * Can be used as a `Subscriber`
  */
-class Sink[-In, +Mat](delegate: scaladsl.Sink[In, Mat]) extends Graph[SinkShape[In], Mat] {
+final class Sink[-In, +Mat](delegate: scaladsl.Sink[In, Mat]) extends Graph[SinkShape[In], Mat] {
 
   override def shape: SinkShape[In] = delegate.shape
   private[stream] def module: StreamLayout.Module = delegate.module
diff --git a/akka-stream/src/main/scala/akka/stream/javadsl/Source.scala b/akka-stream/src/main/scala/akka/stream/javadsl/Source.scala
index ff6889c0cd..91553bf45e 100644
--- a/akka-stream/src/main/scala/akka/stream/javadsl/Source.scala
+++ b/akka-stream/src/main/scala/akka/stream/javadsl/Source.scala
@@ -242,7 +242,7 @@ object Source {
  * A `Source` is a set of stream processing steps that has one open output and an attached input.
  * Can be used as a `Publisher`
  */
-class Source[+Out, +Mat](delegate: scaladsl.Source[Out, Mat]) extends Graph[SourceShape[Out], Mat] {
+final class Source[+Out, +Mat](delegate: scaladsl.Source[Out, Mat]) extends Graph[SourceShape[Out], Mat] {
 
   import scala.collection.JavaConverters._