<Sound Dev> [11] Review Request: 8202264 Race condition in AudioClip.loop()

[Sergey Bylokhov]

Hello, Audio Guru.

Please review the fix for jdk11.

Bug: https://bugs.openjdk.java.net/browse/JDK-8202264
Webrev: http://cr.openjdk.java.net/~serb/8202264/webrev.00

Our implementation of "java.applet.AudioClip" is a wrapper for 
"javax.sound.sampled.Line", which should be closed after usage.

We close the line in two situations:
  1. When finalize() is called for the AudioClip.
  2. When the AudioClip is inactive 5 seconds after creation(at the 
moment of check).

The second case has some issues:
  - The clip can be closed automatically not after 5 seconds from the 
last activity, but even if the clip is actively used but inactive 
exactly at 5 seconds after creation.
  - The clip can be closed automatically when(or immediately after) the 
user will try to play some sounds.

In the fix I have disabled auto-closing, when the user tries to play the 
sounds. As a side effect we will close the clip after 5 seconds of 
inactivity.


-- 
Best regards, Sergey.