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List:       openjdk-2d-dev
Subject:    Re: RFR: 8282463: javax/sound/sampled/Clip/DataPusherThreadCheck.java fails
From:       Andrey Turbanov <aturbanov () openjdk ! org>
Date:       2022-10-30 17:33:27
Message-ID: EYTQQo2oNy392Pkt1Uo0yL7-GdbYiaTyUk09z5qTFn8=.b44d6de2-aba8-4bef-96ba-e101405089dc () github ! com
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On Sat, 15 Oct 2022 13:03:26 GMT, Andrey Turbanov <aturbanov@openjdk.org> wrote:

> Test failed on Ubuntu, because both implementations of `MixerProvider` have no \
> devices: 1. com.sun.media.sound.DirectAudioDeviceProvider#nGetNumDevices returns \
>                 `0`
> ![DirectAudioDeviceProvider \
> init](https://user-images.githubusercontent.com/741251/195988216-aa86da0f-739b-433f-87e2-86c2d6904a0d.png)
>  2. com.sun.media.sound.PortMixerProvider#nGetNumDevices returns `0`
> ![PortMixerProvider \
> init](https://user-images.githubusercontent.com/741251/195988239-59678e0c-be7b-43ff-b02a-9abb2392e8f9.png)
>  
> 
> It leads to `javax.sound.sampled.spi.MixerProvider#getMixerInfo` returns empty \
>                 array.
> ![AudioSystem getMixedInfoList](https://user-images.githubusercontent.com/741251/195988266-1656e6d3-de4a-4e53-a613-415f60075726.png)
>  
> And DataPusher thread is not created, because of AudioSystem.isLineSupported \
> returns false in the method \
> `com.sun.media.sound.JavaSoundAudioClip#createSourceDataLine`. I propose to perform \
> the same check in test code and skip it.

I wasn't able to reproduce failure after the fix.

-------------

PR: https://git.openjdk.org/jdk/pull/10717


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