--- old/src/java.base/share/classes/java/io/OutputStream.java	2019-09-06 11:11:23.866589001 -0700
+++ new/src/java.base/share/classes/java/io/OutputStream.java	2019-09-06 11:11:23.674589001 -0700
@@ -47,6 +47,11 @@
  */
 public abstract class OutputStream implements Closeable, Flushable {
     /**
+     * Constructor for subclasses to call.
+     */
+    public OutputStream() {}
+
+    /**
      * Returns a new {@code OutputStream} which discards all bytes.  The
      * returned stream is initially open.  The stream is closed by calling
      * the {@code close()} method.  Subsequent calls to {@code close()} have