--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/share/classes/java/io/ObjectOutput.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 1996, 2010, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package java.io;
+
+/**
+ * ObjectOutput extends the DataOutput interface to include writing of objects.
+ * DataOutput includes methods for output of primitive types, ObjectOutput
+ * extends that interface to include objects, arrays, and Strings.
+ *
+ * @author  unascribed
+ * @see java.io.InputStream
+ * @see java.io.ObjectOutputStream
+ * @see java.io.ObjectInputStream
+ * @since   1.1
+ */
+public interface ObjectOutput extends DataOutput, AutoCloseable {
+    /**
+     * Write an object to the underlying storage or stream.  The
+     * class that implements this interface defines how the object is
+     * written.
+     *
+     * @param obj the object to be written
+     * @exception IOException Any of the usual Input/Output related exceptions.
+     */
+    public void writeObject(Object obj)
+      throws IOException;
+
+    /**
+     * Writes a byte. This method will block until the byte is actually
+     * written.
+     * @param b the byte
+     * @exception IOException If an I/O error has occurred.
+     */
+    public void write(int b) throws IOException;
+
+    /**
+     * Writes an array of bytes. This method will block until the bytes
+     * are actually written.
+     * @param b the data to be written
+     * @exception IOException If an I/O error has occurred.
+     */
+    public void write(byte b[]) throws IOException;
+
+    /**
+     * Writes a sub array of bytes.
+     * @param b the data to be written
+     * @param off       the start offset in the data
+     * @param len       the number of bytes that are written
+     * @exception IOException If an I/O error has occurred.
+     */
+    public void write(byte b[], int off, int len) throws IOException;
+
+    /**
+     * Flushes the stream. This will write any buffered
+     * output bytes.
+     * @exception IOException If an I/O error has occurred.
+     */
+    public void flush() throws IOException;
+
+    /**
+     * Closes the stream. This method must be called
+     * to release any resources associated with the
+     * stream.
+     * @exception IOException If an I/O error has occurred.
+     */
+    public void close() throws IOException;
+}