--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/javax/sound/sampled/Mixers/BothEndiansAndSigns.java	Mon Oct 31 14:50:09 2016 +0300
@@ -0,0 +1,136 @@
+/*
+ * 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.sampled.AudioFormat;
+import javax.sound.sampled.AudioSystem;
+import javax.sound.sampled.DataLine;
+import javax.sound.sampled.Line;
+import javax.sound.sampled.Mixer;
+
+/**
+ * @test
+ * @bug 4936397
+ * @summary Verify that there'll for a given endianness, there's also the little
+ *          endian version
+ */
+public class BothEndiansAndSigns {
+    static boolean failed = false;
+    static int testedFormats = 0;
+
+    public static void main(String[] args) throws Exception {
+        out("4936397: Verify that there'll for a given endianness, there's also the little endian version");
+        out("         and the same for signed'ness for 8-bit formats");
+
+        Mixer.Info[] aInfos = AudioSystem.getMixerInfo();
+        for (int i = 0; i < aInfos.length; i++) {
+            try {
+                Mixer mixer = AudioSystem.getMixer(aInfos[i]);
+                out("Mixer "+aInfos[i]);
+                checkLines(mixer, mixer.getSourceLineInfo());
+                checkLines(mixer, mixer.getTargetLineInfo());
+            } catch (Exception e) {
+                out("Unexpected exception when getting a mixer: "+e);
+            }
+        }
+        if (testedFormats == 0) {
+            out("[No appropriate lines available] - cannot exercise this test.");
+        } else {
+            if (failed) {
+                throw new Exception("Test FAILED!");
+            }
+            out("Test passed");
+        }
+    }
+
+    public static void checkLines(Mixer mixer, Line.Info[] infos) {
+        for (int i = 0; i<infos.length; i++) {
+            try {
+                if (infos[i] instanceof DataLine.Info) {
+                    DataLine.Info info = (DataLine.Info) infos[i];
+                    System.out.println(" Line "+info+" (max. "+mixer.getMaxLines(info)+" simultaneously): ");
+                    AudioFormat[] formats = info.getFormats();
+                    for (int f = 0; f < formats.length; f++) {
+                        try {
+                            AudioFormat otherEndianOrSign = getOtherEndianOrSign(formats[f]);
+                            if (otherEndianOrSign != null) {
+                                checkFormat(formats, otherEndianOrSign);
+                            }
+                        } catch (Exception e1) {
+                            out("  Unexpected exception when getting a format: "+e1);
+                        }
+                    }
+                }
+            } catch (Exception e) {
+                out(" Unexpected exception when getting a line: "+e);
+            }
+        }
+    }
+
+    public static void checkFormat(AudioFormat[] formats, AudioFormat format) {
+        for (int i = 0; i < formats.length; i++) {
+            testedFormats++;
+            if (formats[i].matches(format)) {
+                return;
+            }
+        }
+        out("  ## expected this format: "+format
+            +" ("+format.getChannels()+" channels, "
+            +"frameSize="+format.getFrameSize()+", "
+            +(format.isBigEndian()?"big endian":"little endian")
+            +")");
+        failed = true;
+    }
+
+    public static AudioFormat getOtherEndianOrSign(AudioFormat format) {
+        AudioFormat.Encoding newEnc = null;
+        boolean newEndian = format.isBigEndian();
+        boolean isSigned = format.getEncoding().equals(AudioFormat.Encoding.PCM_SIGNED);
+        boolean isUnsigned = format.getEncoding().equals(AudioFormat.Encoding.PCM_UNSIGNED);
+        if ((isSigned || isUnsigned) && format.getSampleSizeInBits() > 0) {
+            if (format.getSampleSizeInBits() == 8) {
+                // return the other signed'ness
+                if (isSigned) {
+                    newEnc = AudioFormat.Encoding.PCM_UNSIGNED;
+                } else {
+                    newEnc = AudioFormat.Encoding.PCM_SIGNED;
+                }
+            } else {
+                newEnc = format.getEncoding();
+                newEndian = !newEndian;
+            }
+            if (newEnc != null) {
+                return new AudioFormat(newEnc, format.getSampleRate(),
+                                       format.getSampleSizeInBits(),
+                                       format.getChannels(),
+                                       format.getFrameSize(),
+                                       format.getFrameRate(),
+                                       newEndian);
+            }
+        }
+        return null;
+    }
+
+    static void out(String s) {
+        System.out.println(s); System.out.flush();
+    }
+}