Fixes SI-5428.

3 files changed, 35 insertions, 0 deletions

diff --git a/src/library/scala/collection/mutable/StackProxy.scala b/src/library/scala/collection/mutable/StackProxy.scala
index 8884f03bbd..9eadfe4045 100644
--- a/src/library/scala/collection/mutable/StackProxy.scala
+++ b/src/library/scala/collection/mutable/StackProxy.scala
@@ -54,6 +54,11 @@ trait StackProxy[A] extends Stack[A] with Proxy {
     this
   }
 
+  override def push(elem: A): this.type = {
+    self.push(elem)
+    this
+  }
+  
   /** Returns the top element of the stack. This method will not remove
    *  the element from the stack. An error is signaled if there is no
    *  element on the stack.
diff --git a/test/files/run/t5428.check b/test/files/run/t5428.check
new file mode 100644
index 0000000000..7b4b1d6558
--- /dev/null
+++ b/test/files/run/t5428.check
@@ -0,0 +1 @@
+Stack(8, 7, 6, 5, 4, 3)
\ No newline at end of file
diff --git a/test/files/run/t5428.scala b/test/files/run/t5428.scala
new file mode 100644
index 0000000000..106bb7fc31
--- /dev/null
+++ b/test/files/run/t5428.scala
@@ -0,0 +1,29 @@
+
+
+
+import collection.mutable.{Stack, StackProxy}
+
+
+
+class A extends StackProxy[Int] {
+  val self = Stack[Int]()
+}
+
+
+object Test {
+  
+  def main(args: Array[String]) {
+    val a = new A
+    
+    a push 3
+    a push 4
+    a push 5
+    
+    a.push(6, 7, 8)
+    
+    println(a)
+    
+    a pop
+  }
+  
+}