(partial) Rollback of 880b879e8c

*** Original commit ***

Suppress warnings emitted by Checker Framework version 2.11.1

More information:
https://docs.google.com/document/d/16tpK6aXqN68PvTyvt4siM-m7f0NXi_8xEeitLDzr8xY/edit?usp=sharing

Tested:
    TAP train for global presubmit queue
    http://test/OCL:278152710:BASE:278144052:1572760370662:22459c12

***

PiperOrigin-RevId: 284738438

extensions/mediasession/src/main/java/com/google/android/exoplayer2/ext/mediasession/MediaSessionConnector.java

@@ -688,8 +688,6 @@ public final class MediaSessionConnector {
    * @param customActionProviders The custom action providers, or null to remove all existing custom
    *     action providers.
    */
-  // incompatible types in assignment.
-  @SuppressWarnings("nullness:assignment.type.incompatible")
   public void setCustomActionProviders(@Nullable CustomActionProvider... customActionProviders) {
     this.customActionProviders =
         customActionProviders == null ? new CustomActionProvider[0] : customActionProviders;

library/core/src/main/java/com/google/android/exoplayer2/audio/ChannelMappingAudioProcessor.java

@@ -24,7 +24,6 @@ import java.nio.ByteBuffer;
  * An {@link AudioProcessor} that applies a mapping from input channels onto specified output
  * channels. This can be used to reorder, duplicate or discard channels.
  */
-@SuppressWarnings("nullness:initialization.fields.uninitialized")
 /* package */ final class ChannelMappingAudioProcessor extends BaseAudioProcessor {
 
   @Nullable private int[] pendingOutputChannels;

library/core/src/main/java/com/google/android/exoplayer2/drm/DefaultDrmSessionManager.java

@@ -339,8 +339,6 @@ public class DefaultDrmSessionManager<T extends ExoMediaCrypto> implements DrmSe
         new DefaultLoadErrorHandlingPolicy(initialDrmRequestRetryCount));
   }
 
-  // the constructor does not initialize fields: offlineLicenseKeySetId
-  @SuppressWarnings("nullness:initialization.fields.uninitialized")
   private DefaultDrmSessionManager(
       UUID uuid,
       ExoMediaDrm.Provider<T> exoMediaDrmProvider,

library/core/src/main/java/com/google/android/exoplayer2/extractor/mp4/Track.java

@@ -129,8 +129,6 @@ public final class Track {
         : sampleDescriptionEncryptionBoxes[sampleDescriptionIndex];
   }
 
-  // incompatible types in argument.
-  @SuppressWarnings("nullness:argument.type.incompatible")
   public Track copyWithFormat(Format format) {
     return new Track(
         id,

library/core/src/main/java/com/google/android/exoplayer2/mediacodec/MediaCodecUtil.java

@@ -943,8 +943,6 @@ public final class MediaCodecUtil {
 
     @Nullable private android.media.MediaCodecInfo[] mediaCodecInfos;
 
-    // the constructor does not initialize fields: mediaCodecInfos
-    @SuppressWarnings("nullness:initialization.fields.uninitialized")
     public MediaCodecListCompatV21(boolean includeSecure, boolean includeTunneling) {
       codecKind =
           includeSecure || includeTunneling
@@ -958,8 +956,6 @@ public final class MediaCodecUtil {
       return mediaCodecInfos.length;
     }
 
-    // incompatible types in return.
-    @SuppressWarnings("nullness:return.type.incompatible")
     @Override
     public android.media.MediaCodecInfo getCodecInfoAt(int index) {
       ensureMediaCodecInfosInitialized();

library/core/src/main/java/com/google/android/exoplayer2/offline/DefaultDownloadIndex.java

@@ -302,8 +302,6 @@ public final class DefaultDownloadIndex implements WritableDownloadIndex {
     }
   }
 
-  // incompatible types in argument.
-  @SuppressWarnings("nullness:argument.type.incompatible")
   private Cursor getCursor(String selection, @Nullable String[] selectionArgs)
       throws DatabaseIOException {
     try {

library/core/src/main/java/com/google/android/exoplayer2/source/SingleSampleMediaPeriod.java

@@ -383,8 +383,6 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
 
     @Nullable private byte[] sampleData;
 
-    // the constructor does not initialize fields: sampleData
-    @SuppressWarnings("nullness:initialization.fields.uninitialized")
     public SourceLoadable(DataSpec dataSpec, DataSource dataSource) {
       this.dataSpec = dataSpec;
       this.dataSource = new StatsDataSource(dataSource);

library/core/src/main/java/com/google/android/exoplayer2/trackselection/AdaptiveTrackSelection.java

@@ -610,18 +610,13 @@ public class AdaptiveTrackSelection extends BaseTrackSelection {
 
     @Nullable private long[][] allocationCheckpoints;
 
-    /* package */
+    /* package */ DefaultBandwidthProvider(
-    // the constructor does not initialize fields: allocationCheckpoints
-    @SuppressWarnings("nullness:initialization.fields.uninitialized")
-    DefaultBandwidthProvider(
         BandwidthMeter bandwidthMeter, float bandwidthFraction, long reservedBandwidth) {
       this.bandwidthMeter = bandwidthMeter;
       this.bandwidthFraction = bandwidthFraction;
       this.reservedBandwidth = reservedBandwidth;
     }
 
-    // unboxing a possibly-null reference allocationCheckpoints[nextIndex][0]
-    @SuppressWarnings("nullness:unboxing.of.nullable")
     @Override
     public long getAllocatedBandwidth() {
       long totalBandwidth = (long) (bandwidthMeter.getBitrateEstimate() * bandwidthFraction);

library/core/src/main/java/com/google/android/exoplayer2/upstream/DataSchemeDataSource.java

@@ -36,8 +36,6 @@ public final class DataSchemeDataSource extends BaseDataSource {
   private int endPosition;
   private int readPosition;
 
-  // the constructor does not initialize fields: data
-  @SuppressWarnings("nullness:initialization.fields.uninitialized")
   public DataSchemeDataSource() {
     super(/* isNetwork= */ false);
   }

library/ui/src/main/java/com/google/android/exoplayer2/ui/spherical/SceneRenderer.java

@@ -60,8 +60,6 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
 
   // Methods called on any thread.
 
-  // the constructor does not initialize fields: lastProjectionData
-  @SuppressWarnings("nullness:initialization.fields.uninitialized")
   public SceneRenderer() {
     frameAvailable = new AtomicBoolean();
     resetRotationAtNextFrame = new AtomicBoolean(true);