--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.security.jgss/share/classes/sun/security/krb5/internal/util/KrbDataOutputStream.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,67 @@
+/*
+ * 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.
+ */
+
+/*
+ *
+ *  (C) Copyright IBM Corp. 1999 All Rights Reserved.
+ *  Copyright 1997 The Open Group Research Institute.  All rights reserved.
+ */
+
+package sun.security.krb5.internal.util;
+
+import java.io.BufferedOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+
+/**
+ * This class implements a buffered output stream. It provides methods to write a chunck of
+ * bytes to underlying data stream.
+ *
+ * @author Yanni Zhang
+ *
+ */
+public class KrbDataOutputStream extends BufferedOutputStream {
+    public KrbDataOutputStream(OutputStream os) {
+        super(os);
+    }
+    public void write32(int num) throws IOException {
+        byte[] bytes = new byte[4];
+        bytes[0] = (byte)((num & 0xff000000) >> 24 & 0xff);
+        bytes[1] = (byte)((num & 0x00ff0000) >> 16 & 0xff);
+        bytes[2] = (byte)((num & 0x0000ff00) >> 8 & 0xff);
+        bytes[3] = (byte)(num & 0xff);
+        write(bytes, 0, 4);
+    }
+
+    public void write16(int num) throws IOException {
+        byte[] bytes = new byte[2];
+        bytes[0] = (byte)((num & 0xff00) >> 8 & 0xff);
+        bytes[1] = (byte)(num & 0xff);
+        write(bytes, 0, 2);
+    }
+
+    public void write8(int num) throws IOException {
+        write(num & 0xff);
+    }
+}