Crash in version 4.8.0

[jhouska]

I use the Bumptech Glide library to display an animated gif.

After upgrading to version 4.8.0, some users have started experiencing the crash:

java.lang.NullPointerException: null cannot be cast to non-null type T of androidx.core.util.Pools.SimplePool
at androidx.core.util.Pools$SimplePool.acquire(Pools.kt:89)
at com.bumptech.glide.util.pool.FactoryPools$FactoryPool.acquire(FactoryPools.java:157)
at com.bumptech.glide.load.engine.Engine$DecodeJobFactory.build(Engine.java:428)
at com.bumptech.glide.load.engine.Engine.load(Engine.java:210)
at com.bumptech.glide.request.SingleRequest.onSizeReady(SingleRequest.java:432)
at com.bumptech.glide.request.SingleRequest.begin(SingleRequest.java:255)
at com.bumptech.glide.manager.RequestTracker.runRequest(RequestTracker.java:44)
at com.bumptech.glide.RequestManager.track(RequestManager.java:614)
at com.bumptech.glide.RequestBuilder.into(RequestBuilder.java:646)
at com.bumptech.glide.RequestBuilder.into(RequestBuilder.java:611)
at com.bumptech.glide.RequestBuilder.into(RequestBuilder.java:604)
at com.bumptech.glide.load.resource.gif.GifFrameLoader.loadNextFrame(GifFrameLoader.java:226)
at com.bumptech.glide.load.resource.gif.GifFrameLoader.onFrameReady(GifFrameLoader.java:284)
at com.bumptech.glide.load.resource.gif.GifFrameLoader$FrameLoaderCallback.handleMessage(GifFrameLoader.java:298)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loopOnce(Looper.java:201)
at android.os.Looper.loop(Looper.java:288)
at android.app.ActivityThread.main(ActivityThread.java:7959)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:594)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1001)