FULL PRODUCT VERSION :
java version "1.7.0_03"
Java(TM) SE Runtime Environment (build 1.7.0_03-b05)
Java HotSpot(TM) Client VM (build 22.1-b02, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 5.2.3790]

A DESCRIPTION OF THE PROBLEM :
Found one Java-level deadlock:
=============================
"Thread-18":
  waiting to lock monitor 0x16be7964 (object 0x0afacee0, a com.sun.media.sound.RealTimeSequencer$DataPump),
  which is held by "Java Sound Sequencer"
"Java Sound Sequencer":
  waiting to lock monitor 0x17d422cc (object 0x0b083cc8, a com.sun.media.sound.MidiUtils$TempoCache),
  which is held by "Thread-18"

Java stack information for the threads listed above:
===================================================
"Thread-18":
        at com.sun.media.sound.RealTimeSequencer$DataPump.setTickPos(Unknown Source)
        - waiting to lock <0x0afacee0> (a com.sun.media.sound.RealTimeSequencer$DataPump)
        at com.sun.media.sound.RealTimeSequencer.setTickPosition(Unknown Source)
        - locked <0x0ade3ef8> (a com.sun.media.sound.RealTimeSequencer)
        at com.sun.media.sound.RealTimeSequencer.setMicrosecondPosition(UnknownSource)
        - locked <0x0b083cc8> (a com.sun.media.sound.MidiUtils$TempoCache)
        at hsplet.media.Music.setPosition(Music.java:150)
        at hsplet.media.Music$1.run(Music.java:110)
"Java Sound Sequencer":
        at com.sun.media.sound.MidiUtils$TempoCache.getTempoMPQAt(Unknown Source)
        - waiting to lock <0x0b083cc8> (a com.sun.media.sound.MidiUtils$TempoCache)
        at com.sun.media.sound.RealTimeSequencer$DataPump.setTickPos(Unknown Source)
        - locked <0x0afacee0> (a com.sun.media.sound.RealTimeSequencer$DataPump)
        at com.sun.media.sound.RealTimeSequencer$PlayThread.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)

Found 1 deadlock.


REPRODUCIBILITY :
This bug can be reproduced occasionally.