Initially, this bug was reported here:
https://mail.openjdk.java.net/pipermail/sound-dev/2020-January/000710.html
==========================
On 1/7/20 9:53 am, marcusl wrote:
> Hi there,
>
> I'm running a Java program under Windows 7 which just fetches the audio
> devices via the AudioSystem.getMixerInfo() and checks for a specific device.
> This device is a USB audio device. When the device gets plugged into the
> computer it takes about 3 sec until it is recognized by the AudioSystem. So
> no problem here. But if the device has been unplugged it takes about 30 sec
> until this situation is correctly reported by the AudioSystem. This happens
> with every USB-device.
>
> So, I just want to ask if this is because of the JVM<->Windows communication
> or if there is some timeout hidden throughout the audio system
> implementation. I can totally live with the 30 sec if there is no sane way
> to reduce this time. But I'm also interested in the "why".
>
> Thanks in advance
==========================