AndroidX Media2 Package.getName() NPE [177060207]

Fixed

Bug

Status Update

No update yet.

Description

it...@gmail.com

created issue #1

Jan 9, 2021 02:14PM

Component used: media2-session

Version used: 1.1.1

Devices/Android versions reproduced on: SHIELD TV (Android 9), Redmi K20 (Android 11), Mi 9T Pro (Android 10)

Using a ExoPlayer with a MediaSessionService. Note that no extra session package verifiers are used, only inbuilt inside ExoPlayer's media2 extension.

Crashlog:

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Package.getName()' on a null object reference
       at androidx.versionedparcelable.VersionedParcel.findParcelClass(VersionedParcel.java:1630)
       at androidx.versionedparcelable.VersionedParcel.writeVersionedParcelableCreator(VersionedParcel.java:1042)
       at androidx.versionedparcelable.VersionedParcel.writeVersionedParcelable(VersionedParcel.java:1032)
       at androidx.versionedparcelable.VersionedParcel.writeVersionedParcelable(VersionedParcel.java:1022)
       at androidx.media2.session.SessionTokenParcelizer.write(SessionTokenParcelizer.java:22)
       at java.lang.reflect.Method.invoke(Method.java)
       at androidx.versionedparcelable.VersionedParcel.writeToParcel(VersionedParcel.java:1587)
       at androidx.versionedparcelable.VersionedParcel.writeVersionedParcelable(VersionedParcel.java:1035)
       at androidx.versionedparcelable.ParcelImpl.writeToParcel(ParcelImpl.java:57)
       at android.os.Parcel.writeParcelable(Parcel.java:10)
       at android.os.Parcel.writeValue(Parcel.java:104)
       at android.os.Parcel.writeArrayMapInternal(Parcel.java:30)
       at android.os.BaseBundle.writeToParcelInner(BaseBundle.java:81)
       at android.os.Bundle.writeToParcel(Bundle.java:13)
       at android.os.Parcel.writeBundle(Parcel.java:8)
       at android.os.Parcel.writeValue(Parcel.java:71)
       at android.os.Parcel.writeArrayMapInternal(Parcel.java:30)
       at android.os.BaseBundle.writeToParcelInner(BaseBundle.java:81)
       at android.os.Bundle.writeToParcel(Bundle.java:13)
       at com.android.internal.os.IResultReceiver$Stub$Proxy.send(IResultReceiver.java:19)
       at android.os.ResultReceiver.send(ResultReceiver.java:25)
       at android.support.v4.media.session.MediaSessionCompat$Callback$MediaSessionCallbackApi21.onCommand(MediaSessionCompat.java:1560)
       at android.media.session.MediaSession$CallbackMessageHandler.handleMessage(MediaSession.java:310)
       at android.os.Handler.dispatchMessage(Handler.java:19)
       at android.os.Looper.loop(Looper.java:249)
       at android.os.HandlerThread.run(HandlerThread.java:28)

Comments

gy...@google.com <gy...@google.com> #2Jan 11, 2021 12:44AM

Reassigned to gy...@google.com.

Update: I was able to downgrade to 32.1.10 and I can confirm it's smooth again. The issue is indeed in emulator version 33.1.1

it...@gmail.com <it...@gmail.com> #3Jan 11, 2021 09:59AM

It's happening to me too and I also confirm that reverting to 32.1.10 fixes the issue.

We should have an easier way of reverting versions. AS should allow picking the version similarly to how we already do for the other tools in SDK manager.

gy...@google.com <gy...@google.com> #4Jan 12, 2021 02:13AM

Hi,

would you try to turn on hardware GPU rendering (instead of auto GPU) and see if it fixes this issue?

it...@gmail.com <it...@gmail.com> #5Jan 12, 2021 08:33AM

Hi,

I'm currently not able to change this option, it is greyed out.

ap...@google.com <ap...@google.com> #6Jan 12, 2021 10:25PM

Hi,

there are 2 ways to set it:

1. use a google_apis image (instead of google_apis_playstore). it will re-enable the option.
2. go to your avd folder (usually located in ~/.android/avd/your_avd_name.avd/), open config.ini and hardware-qemu.ini, then modify those lines:

hw.gpu.enabled=yes
hw.gpu.mode=host

ap...@google.com <ap...@google.com> #7Jan 13, 2021 07:00AM

Hi,

Yes, option 2 fixes the issue (which also persists on 33.1.2 btw). Even though I get a warning when I start the emulator (see attachments).

Will this option be enabled "out of the box" in a future version?

gy...@google.com <gy...@google.com> #8Jan 14, 2021 07:45AM

Marked as fixed.

Hi,

we suspect a bug in gpu detection logic on Mac M1, and will try to address it in upcoming releases.