--- /dev/null	2016-10-24 21:40:35.000000000 +0300
+++ new/test/javax/sound/midi/Sequence/GetMicrosecondLength.java	2016-10-24 21:40:35.000000000 +0300
@@ -0,0 +1,151 @@
+/*
+ * 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.InvalidMidiDataException;
+import javax.sound.midi.MetaMessage;
+import javax.sound.midi.MidiEvent;
+import javax.sound.midi.Sequence;
+import javax.sound.midi.ShortMessage;
+import javax.sound.midi.Track;
+
+/**
+ * @test
+ * @bug 4929955
+ * @summary Sequence.getMicrosecondLength() returns wrong value
+ */
+public class GetMicrosecondLength {
+
+    public static boolean failed = false;
+    //private static Sequencer seq = null;
+
+    public static void main(String[] args) throws Exception {
+        /*
+          try {
+          seq = MidiSystem.getSequencer();
+          } catch (Exception e) {
+          e.printStackTrace();
+          }
+        */
+        for (int sec = 1; sec < 10; sec += 4) {
+            for (int tempo=0; tempo < 1000; tempo+=120) {
+                for (int resolution=1; resolution < 480; ) {
+                    testSequence(sec, tempo, resolution);
+                    if (resolution == 1) {
+                        resolution = 120;
+                    } else {
+                        resolution += 120;
+                    }
+                }
+            }
+        }
+        if (failed) throw new Exception("Test FAILED!");
+        out("Test Passed.");
+    }
+
+    /**
+     * Create a new Sequence for testing.
+     */
+    private static void testSequence(int lengthInSeconds, int tempoInBPM, int resolution) {
+        Sequence sequence = null;
+        long lengthInMicroseconds = lengthInSeconds * 1000000;
+        boolean createTempoEvent = true;
+        if (tempoInBPM == 0) {
+            tempoInBPM = 120;
+            createTempoEvent = false;
+            System.out.print("Creating sequence: "+lengthInSeconds+"sec, "
+                             +"resolution="+resolution+" ticks/beat...");
+        } else {
+            System.out.print("Creating sequence: "+lengthInSeconds+"sec, "
+                             +tempoInBPM+" beats/min, "
+                             +"resolution="+resolution+" ticks/beat...");
+        }
+        //long lengthInTicks = (lengthInMicroseconds * resolution) / tempoInBPM;
+        long lengthInTicks = (lengthInMicroseconds * tempoInBPM * resolution) / 60000000l;
+        //out("expected length in ticks: " + lengthInTicks);
+        try {
+            sequence = new Sequence(Sequence.PPQ, resolution);
+            Track track = sequence.createTrack();
+            if (createTempoEvent) {
+                int tempoInMPQ = (int) (60000000l / tempoInBPM);
+                MetaMessage tm = new MetaMessage();
+                byte[] msg = new byte[3];
+                msg[0] = (byte) (tempoInMPQ >> 16);
+                msg[1] = (byte) ((tempoInMPQ >> 8) & 0xFF);
+                msg[2] = (byte) (tempoInMPQ & 0xFF);
+
+                tm.setMessage(0x51 /* Meta Tempo */, msg, msg.length);
+                track.add(new MidiEvent(tm, 0));
+                //out("regtest: tempoInMPQ="+tempoInMPQ);
+                //out("Added tempo event: new size="+track.size());
+            }
+            ShortMessage mm = new ShortMessage();
+            mm.setMessage(0xF6, 0, 0);
+            MidiEvent me = new MidiEvent(mm, lengthInTicks);
+            track.add(me);
+            //out("Added realtime event: new size="+track.size());
+        } catch (InvalidMidiDataException e) {
+            out(e);
+        }
+        boolean thisFailed = false;
+        long actualLengthInTicks = sequence.getTickLength();
+        // allow +/- 5%
+        if (Math.abs(actualLengthInTicks - lengthInTicks) > lengthInTicks / 20) {
+            out("FAILED:");
+            out("  expected length in ticks: " + lengthInTicks);
+            out("  actual length in ticks  : " + actualLengthInTicks);
+            thisFailed = true;
+        }
+        long actualLengthInUs = sequence.getMicrosecondLength();
+        // allow +/- 5%
+        if (Math.abs(actualLengthInUs - lengthInMicroseconds) > lengthInMicroseconds / 20) {
+            if (!thisFailed) {
+                out("FAILED:");
+            }
+            out("  expected length in microsecs: " + lengthInMicroseconds);
+            out("  actual length in microsecs  : " + actualLengthInUs);
+            thisFailed = true;
+        }
+        if (!thisFailed) {
+            out("OK");
+        }
+        /*if (seq != null) {
+          try {
+          seq.setSequence(sequence);
+          out("Sequencer tempo="+seq.getTempoInBPM());
+          } catch (Exception e) {
+          e.printStackTrace();
+          }
+          }
+        */
+        failed |= thisFailed;
+    }
+
+
+    private static void out(Throwable t) {
+        t.printStackTrace(System.out);
+    }
+
+    private static void out(String message) {
+        System.out.println(message);
+    }
+}