Crash with "Child process exited with code 1" (EXCEPTION_ACCESS_VIOLATION in native-rtaudio.dll) when Bluetooth audio device disconnects

Bug reports
1 
# Description

AudioRelay crashes with the popup error "AudioRelay.exe: Child process exited with code 1" when the audio output

device (e.g. a Bluetooth TWS earphone) disconnects, sleeps, or is removed.

According to the generated `hs_err_pid54220.log`, the crash is caused by an `EXCEPTION_ACCESS_VIOLATION

(0xc0000005)innative-rtaudio.dllduring cleanup. When the audio device disconnects, the stream stops and the application attempts to destroy the audio session viaRtAudioJni.destroy(), which triggers a null-pointer dereference (reading address 0x0000000000000000`):

```text
Problematic frame:
C  [native-rtaudio.dll+0xf5f1]

Java frames:
j  com.azefsw.audioconnect.audio.RtAudioJni.destroy(J)V+0
j  com.azefsw.audioconnect.audio.RtAudioJni.destroy()V+23

Prior to the crash, audiorelay.log records:

[WARN] System error: SystemErrorId(value=RTAUDIO_STREAM_STOPPED_ERROR)
[ERROR] Audio output failed: com.azefsw.audioconnect.desktop.exceptions.StreamNotRunningException: The stream

stopped running. The audio device changed or was removed
[WARN] System error: SystemErrorId(value=RTAUDIO_OUTPUT_ERROR)

Steps to reproduce

  1. Start AudioRelay on Windows 10.
  2. Select a Bluetooth audio device (e.g. TWS earbuds) as the audio output.
  3. Start audio playback or streaming.
  4. Disconnect the Bluetooth earphones (or put them back in the charging case, or let them enter auto-sleep after
    silence).
  5. AudioRelay crashes immediately with the dialog: Child process exited with code 1.

Devices

Device A:
Windows 10 Pro 64-bit (Build 19041)
AudioRelay 0.27.5

Device B:
Bluetooth Audio Device (TWS Earbuds)
──────
Attachments uploaded:

• hs_err_pid54220.log
• audiorelay.0.log
• error_popup.png
audiorelay.0.log (75.8 KB)

error_popup
error_popup271×158 4.55 KB

hs_err_pid54220.log (59.7 KB)