Fixing signatures of universal methods on `Any` and `AnyRef`.

Methods `getClass`, `isInstanceOf`, `asInstanceOf`, `notify`, `notifyAll`, and `wait` should be final.
Method `getClass` should exist only on Any.

1 files changed, 5 insertions, 14 deletions

diff --git a/src/library-aux/scala/AnyRef.scala b/src/library-aux/scala/AnyRef.scala
index 7217499da7..67090bae47 100644
--- a/src/library-aux/scala/AnyRef.scala
+++ b/src/library-aux/scala/AnyRef.scala
@@ -100,33 +100,24 @@ trait AnyRef extends Any {
    */
   protected def finalize(): Unit
 
-  /** A representation that corresponds to the dynamic class of the receiver object.
-   *
-   *  The nature of the representation is platform dependent.
-   *
-   *  @note   not specified by SLS as a member of AnyRef
-   *  @return a representation that corresponds to the dynamic class of the receiver object.
-   */
-  def getClass(): Class[_]
-
   /** Wakes up a single thread that is waiting on the receiver object's monitor.
    *
    *  @note   not specified by SLS as a member of AnyRef
    */
-  def notify(): Unit
+  final def notify(): Unit
 
   /** Wakes up all threads that are waiting on the receiver object's monitor.
    *
    *  @note   not specified by SLS as a member of AnyRef
    */
-  def notifyAll(): Unit
+  final def notifyAll(): Unit
 
   /** Causes the current Thread to wait until another Thread invokes
    *  the notify() or notifyAll() methods.
    *
    *  @note   not specified by SLS as a member of AnyRef
    */
-  def wait (): Unit
-  def wait (timeout: Long, nanos: Int): Unit
-  def wait (timeout: Long): Unit
+  final def wait (): Unit
+  final def wait (timeout: Long, nanos: Int): Unit
+  final def wait (timeout: Long): Unit
 }