--- /dev/null	2017-05-22 14:23:54.000000000 -0700
+++ new/test/javax/imageio/stream/FlushBefore.java	2017-05-22 14:23:54.000000000 -0700
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2001, 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 4431503
+ * @summary Checks if flushBefore(pos) throws an IndexOutOfBoundsException if
+ *          pos lies in the flushed portion of the stream
+ */
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+
+import javax.imageio.stream.FileCacheImageOutputStream;
+import javax.imageio.stream.ImageOutputStream;
+import javax.imageio.stream.MemoryCacheImageOutputStream;
+
+public class FlushBefore {
+
+    public static void main(String[] args) throws IOException {
+        OutputStream ostream = new ByteArrayOutputStream();
+
+        FileCacheImageOutputStream fcios =
+            new FileCacheImageOutputStream(ostream, null);
+        test(fcios);
+
+        MemoryCacheImageOutputStream mcios =
+            new MemoryCacheImageOutputStream(ostream);
+        test(mcios);
+    }
+
+    private static void test(ImageOutputStream ios) throws IOException {
+        try {
+            ios.write(new byte[10], 0, 10);
+            ios.flushBefore(5);
+            ios.flushBefore(4);
+
+            throw new RuntimeException
+                ("Failed to get IndexOutOfBoundsException!");
+        } catch (IndexOutOfBoundsException e) {
+        }
+    }
+}