Software error (outside VM) when calling JMF Player::close()

Question

First off, I apologize for cross posting this here and in the "General Java Programming" forum. I did not know there was a forum specific for JMF, until someone mentioned it to me.
I have written the following test program:
import java.io.File;
import java.io.IOException;
import javax.media.Time;
import javax.media.Player;
import javax.media.Manager;
import javax.media.NoPlayerException;
class MyMP3Player {
public static void main(String [] args) {
try {
File mp3File = new File("test.mp3");
Player aPlayer = Manager.createPlayer(mp3File.toURL());
aPlayer.start(); // Starts asynchronous playback
Thread.sleep(10*1000); // Allow playback to continue for 10
aPlayer.stop(); // stops playback (well, it really PAUSES!!!)
aPlayer.deallocate();
aPlayer.close();
catch (IOException e) {e.printStackTrace();}
catch (NoPlayerException npe) {npe.printStackTrace();}
catch (InterruptedException ie) {ie.printStackTrace();}
The program runs fine for the first 2 times: I can hear the first 10 seconds of the test.mp3 file. Then, on the third run (and every other run after that), after it has played the file for the 10 seconds, the program gives me the error pasted below and exits. Does anyone know how to fix this? Am I doing something wrong in the program? Oh, and yes, I have tested it with other mp3 files and it still does the same thing.
BTW, I am running WinXP, and JMF 2.1.1e . Also, I have noticed that JMStudio does not have this problem, does JMStudio not call Player::close() ever?
===== ERROR BEGINS HERE =====
An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : EXCEPTION_ACCESS_VIOLATION occurred at PC=0x73F91D04
Function=[Unknown.]
Library=(N/A)
NOTE: We are unable to locate the function name symbol for the error
just occurred. Please refer to release documentation for possible
reason and solutions.
Current Java thread:
at com.sun.media.amovie.ActiveMovie.dispose0(Native Method)
at com.sun.media.amovie.ActiveMovie.dispose(ActiveMovie.java:329)
at com.sun.media.amovie.AMController.doClose(AMController.java:632)
- locked <029F77C8> (a java.lang.Integer)
at com.sun.media.BasicController.close(BasicController.java:261)
at com.sun.media.BasicPlayer.doClose(BasicPlayer.java:229)
at com.sun.media.content.video.mpeg.Handler.doClose(Handler.java:158)
at com.sun.media.BasicController.close(BasicController.java:261)
at MyMP3Player.main(MyMP3Player.java:30)
Dynamic libraries:
0x00400000 - 0x00406000 C:\WINDOWS\system32\java.exe
0x77F50000 - 0x77FF9000 C:\WINDOWS\System32\ntdll.dll
0x77E60000 - 0x77F45000 C:\WINDOWS\system32\kernel32.dll
0x77DD0000 - 0x77E5B000 C:\WINDOWS\system32\ADVAPI32.dll
0x77CC0000 - 0x77D35000 C:\WINDOWS\system32\RPCRT4.dll
0x77C10000 - 0x77C63000 C:\WINDOWS\system32\MSVCRT.dll
0x6D340000 - 0x6D46A000 C:\Program Files\Java\j2re1.4.1_02\bin\client\jv
m.dll
0x77D40000 - 0x77DCD000 C:\WINDOWS\system32\USER32.dll
0x77C70000 - 0x77CB0000 C:\WINDOWS\system32\GDI32.dll
0x76B40000 - 0x76B6C000 C:\WINDOWS\system32\WINMM.dll
0x6D1E0000 - 0x6D1E7000 C:\Program Files\Java\j2re1.4.1_02\bin\hpi.dll
0x6D310000 - 0x6D31E000 C:\Program Files\Java\j2re1.4.1_02\bin\verify.dl
l
0x6D220000 - 0x6D239000 C:\Program Files\Java\j2re1.4.1_02\bin\java.dll
0x6D330000 - 0x6D33D000 C:\Program Files\Java\j2re1.4.1_02\bin\zip.dll
0x10000000 - 0x10015000 C:\WINDOWS\system32\jmutil.dll
0x0AFA0000 - 0x0AFAD000 C:\WINDOWS\system32\jmam.dll
0x771B0000 - 0x772CA000 C:\WINDOWS\system32\ole32.dll
0x5AD70000 - 0x5ADA4000 C:\WINDOWS\system32\uxtheme.dll
0x76FD0000 - 0x77048000 C:\WINDOWS\system32\CLBCATQ.DLL
0x77120000 - 0x771AB000 C:\WINDOWS\system32\OLEAUT32.dll
0x77050000 - 0x77115000 C:\WINDOWS\system32\COMRes.dll
0x77C00000 - 0x77C07000 C:\WINDOWS\system32\VERSION.dll
0x72D20000 - 0x72D29000 C:\WINDOWS\system32\wdmaud.drv
0x72D10000 - 0x72D18000 C:\WINDOWS\system32\msacm32.drv
0x77BE0000 - 0x77BF4000 C:\WINDOWS\system32\MSACM32.dll
0x77BD0000 - 0x77BD7000 C:\WINDOWS\system32\midimap.dll
0x73F10000 - 0x73F65000 C:\WINDOWS\system32\DSOUND.DLL
0x73EE0000 - 0x73EE4000 C:\WINDOWS\system32\KsUser.dll
0x6D000000 - 0x6D105000 C:\Program Files\Java\j2re1.4.1_02\bin\awt.dll
0x73000000 - 0x73023000 C:\WINDOWS\system32\WINSPOOL.DRV
0x76390000 - 0x763AA000 C:\WINDOWS\system32\IMM32.dll
0x76C90000 - 0x76CB2000 C:\WINDOWS\system32\imagehlp.dll
0x6D510000 - 0x6D58C000 C:\WINDOWS\system32\DBGHELP.dll
0x76BF0000 - 0x76BFB000 C:\WINDOWS\system32\PSAPI.DLL
Local Time = Wed May 28 09:46:23 2003
Elapsed Time = 19
# The exception above was detected in native code outside the VM
# Java VM: Java HotSpot(TM) Client VM (1.4.1_02-b06 mixed mode)
# An error report file has been saved as hs_err_pid180.log.
# Please refer to the file for further information.

Answer 1

Actually, I just ran another test. My previous fix does work 100%, but it is not necessary to call the Player::close() from within the AWT/SWING event dispatching thread, but it IS a requirement for you to have an AWT/SWING event dispatching thread running somewhere in the background, otherwise the darn thing crashes...
So, if you create some kind of GUI along with your app (thereby creating an AWT/SWING event dispatching thread), or just schedule some event using the SWING Timer class, the Player::close() can be called from any thread...
Hobbieman