--- /dev/null	2016-10-24 21:40:33.000000000 +0300
+++ new/test/javax/sound/midi/MidiSystem/MidiFileTypeUniqueness.java	2016-10-24 21:40:33.000000000 +0300
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2003, 2016, 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.
+ */
+
+import javax.sound.midi.MidiSystem;
+
+/**
+ * @test
+ * @bug 4883060
+ * @summary  AudioSystem.getAudioFileTypes returns duplicates
+ */
+public class MidiFileTypeUniqueness {
+
+    public static void main(String[] args) throws Exception {
+        boolean foundDuplicates = false;
+        int[]   aTypes = MidiSystem.getMidiFileTypes();
+        for (int i = 0; i < aTypes.length; i++)
+        {
+            for (int j = 0; j < aTypes.length; j++)
+            {
+                if (aTypes[i] == aTypes[j] && i != j) {
+                    foundDuplicates = true;
+                }
+            }
+        }
+        if (foundDuplicates) {
+            throw new Exception("Test failed");
+        } else {
+            System.out.println("Test passed");
+        }
+    }
+}