--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/javax/imageio/plugins/jpeg/UshortGrayTest.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2002, 2017, 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.
+ *
+ * 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.
+ */
+
+/*
+ * @test
+ * @bug 4450894
+ * @summary Tests if the JPEGImageWriter allows images with > 8-bit samples to
+ *          be written. Also tests the JPEGImageWriterSpi.canEncodeImage()
+ *          mechanism for this same behavior.
+ */
+
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.Iterator;
+
+import javax.imageio.ImageIO;
+import javax.imageio.ImageTypeSpecifier;
+import javax.imageio.ImageWriter;
+import javax.imageio.stream.ImageOutputStream;
+
+public class UshortGrayTest {
+
+    public static void main(String[] args) {
+        Iterator iter;
+        BufferedImage bi = new BufferedImage(10, 10,
+                                             BufferedImage.TYPE_USHORT_GRAY);
+
+        // Part 1: ensure that JPEGImageWriter throws an exception if it
+        // encounters an image with 16-bit samples
+        ImageWriter writer = null;
+        iter = ImageIO.getImageWritersByFormatName("jpeg");
+        if (iter.hasNext()) {
+            writer = (ImageWriter)iter.next();
+        } else {
+            throw new RuntimeException("No JPEG reader found");
+        }
+
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        ImageOutputStream ios = null;
+        boolean exceptionThrown = false;
+
+        try {
+            ios = ImageIO.createImageOutputStream(baos);
+        } catch (IOException ioe) {
+            throw new RuntimeException("Could not create ImageOutputStream");
+        }
+
+        try {
+            writer.setOutput(ios);
+            writer.write(bi);
+        } catch (IOException ioe) {
+            exceptionThrown = true;
+        }
+
+        if (!exceptionThrown) {
+            throw new RuntimeException("JPEG writer should not be able to " +
+                                       "write USHORT_GRAY images");
+        }
+
+        // Part 2: ensure that JPEGImageWriterSpi.canEncodeImage() returns
+        // false for images with 16-bit samples
+        ImageTypeSpecifier its =
+            ImageTypeSpecifier.createFromRenderedImage(bi);
+
+        iter = ImageIO.getImageWriters(its, "jpeg");
+        if (iter.hasNext()) {
+            throw new RuntimeException("JPEG writer should not be available" +
+                                       " for USHORT_GRAY images");
+        }
+    }
+}