Name: fb126949 Date: 10/22/2001


JMF uses several threads to control a SourceDataLine for playback. Improper synchronization causes SourceDataLine to block. This bug is reproducable easily by just trying to playback a short sound clip as response to user interaction. This bug happens immediately when stop() is called on a playing JMF player, and a new clip is started after that. The JMF player instances are closed in response to a StopByRequestEvent.

This bug is not limited to JMF. Any concurrent open()/close() calls in SourceDataLines potentially block the system.

This is most basic functionality and must be working.


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