androidx.media3.cast.CastPlayer: NullPointerException DefaultMediaItemConverter.toMediaItem 88

Version

Media3 1.4.1

More version details

No response

Devices that reproduce the issue

Can't reproduce, get crash via firebase crashlytics

Devices that do not reproduce the issue

No response

Reproducible in the demo app?

Not tested

Reproduction steps

1. Take an application with Cast implementation without androidx.media3.cast.CastPlayer
2. Start cast
3. Take an application with androidx.media3.cast.CastPlayer
4. Start cast too

Expected result

The media play successfully

Actual result

java.lang.NullPointerException

Media

Attached a screenshot of the crash from firebase crashlytics

couldn't reproduce the crash
use DefaultMediaItemConverter
I search existing issues, but can't find related bug in media3 or ExoPlayer repo
I find the same bug in Conned-SDK-Android - https://github.com/ConnectSDK/Connect-SDK-Android/issues/376
Looks like the crash has been reproduced in Jun 9, 2023 (exoplayer2.ext.cast.CastPlayer)

Do you have any ideas on how to fix this?
Do you need any additional information?
I can see comment in DefaultMediaItemConverter, mediaQueueItem came from toMediaQueueItem() so the custom JSON data must be set.
When is getCustomData expected to be null?

I was pondering a decision, but it confuses me that it costs checking and an exception is purposefully thrown Assertions.checkNotNull
What do you think about this fix?

if (mediaInfo.getCustomData() == null) {
            return MediaItem.EMPTY;
}

Bug Report

• You will email the zip file produced by adb bugreport to android-media-github@google.com after filing this issue.