Remove nullness suppressions.

These were added in an internal clean-up and are better fixed than suppressed.

PiperOrigin-RevId: 236118715

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

@@ -137,11 +137,9 @@ public final class DrmInitData implements Comparator<SchemeData>, Parcelable {
   }
 
   /* package */
-  // TODO(b/124903498): incompatible types in assignment.
-  @SuppressWarnings("nullness:assignment.type.incompatible")
   DrmInitData(Parcel in) {
     schemeType = in.readString();
-    schemeDatas = in.createTypedArray(SchemeData.CREATOR);
+    schemeDatas = Util.castNonNull(in.createTypedArray(SchemeData.CREATOR));
     schemeDataCount = schemeDatas.length;
   }
 

library/core/src/main/java/com/google/android/exoplayer2/metadata/id3/ChapterTocFrame.java

@@ -46,14 +46,12 @@ public final class ChapterTocFrame extends Id3Frame {
   }
 
   /* package */
-  // TODO(b/124903498): incompatible types in assignment.
-  @SuppressWarnings("nullness:assignment.type.incompatible")
   ChapterTocFrame(Parcel in) {
     super(ID);
     this.elementId = castNonNull(in.readString());
     this.isRoot = in.readByte() != 0;
     this.isOrdered = in.readByte() != 0;
-    this.children = in.createStringArray();
+    this.children = castNonNull(in.createStringArray());
     int subFrameCount = in.readInt();
     subFrames = new Id3Frame[subFrameCount];
     for (int i = 0; i < subFrameCount; i++) {

library/core/src/main/java/com/google/android/exoplayer2/metadata/id3/MlltFrame.java

@@ -17,6 +17,7 @@ package com.google.android.exoplayer2.metadata.id3;
 
 import android.os.Parcel;
 import androidx.annotation.Nullable;
+import com.google.android.exoplayer2.util.Util;
 import java.util.Arrays;
 
 /** MPEG location lookup table frame. */
@@ -45,15 +46,13 @@ public final class MlltFrame extends Id3Frame {
   }
 
   /* package */
-  // TODO(b/124903498): incompatible types in assignment.
-  @SuppressWarnings("nullness:assignment.type.incompatible")
   MlltFrame(Parcel in) {
     super(ID);
     this.mpegFramesBetweenReference = in.readInt();
     this.bytesBetweenReference = in.readInt();
     this.millisecondsBetweenReference = in.readInt();
-    this.bytesDeviations = in.createIntArray();
-    this.millisecondsDeviations = in.createIntArray();
+    this.bytesDeviations = Util.castNonNull(in.createIntArray());
+    this.millisecondsDeviations = Util.castNonNull(in.createIntArray());
   }
 
   @Override

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

@@ -363,13 +363,11 @@ public final class DownloadHelper {
    *     Looper}, in which case it will be called on the application's main thread.
    * @throws IllegalStateException If the download helper has already been prepared.
    */
-  // TODO(b/124903498): incompatible types in argument.
-  @SuppressWarnings("nullness:argument.type.incompatible")
   public void prepare(Callback callback) {
     Assertions.checkState(this.callback == null);
     this.callback = callback;
-    callbackHandler =
-        new Handler(Looper.myLooper() != null ? Looper.myLooper() : Looper.getMainLooper());
+    Looper myLooper = Looper.myLooper();
+    callbackHandler = new Handler(myLooper != null ? myLooper : Looper.getMainLooper());
     if (mediaSource != null) {
       mediaPreparer = new MediaPreparer(mediaSource, /* downloadHelper= */ this);
     } else {

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

@@ -889,8 +889,6 @@ public class DefaultTrackSelector extends MappingTrackSelector {
     }
 
     /* package */
-    // TODO(b/124903498): incompatible types in assignment.
-    @SuppressWarnings("nullness:assignment.type.incompatible")
     Parameters(Parcel in) {
       super(in);
       // Video
@@ -917,7 +915,7 @@ public class DefaultTrackSelector extends MappingTrackSelector {
       this.tunnelingAudioSessionId = in.readInt();
       // Overrides
       this.selectionOverrides = readSelectionOverrides(in);
-      this.rendererDisabledFlags = in.readSparseBooleanArray();
+      this.rendererDisabledFlags = Util.castNonNull(in.readSparseBooleanArray());
       // Deprecated fields.
       this.allowMixedMimeAdaptiveness = allowVideoMixedMimeTypeAdaptiveness;
       this.allowNonSeamlessAdaptiveness = allowVideoNonSeamlessAdaptiveness;

library/core/src/main/java/com/google/android/exoplayer2/util/Util.java

@@ -162,8 +162,7 @@ public final class Util {
    * @param intent The intent to pass to the called method.
    * @return The result of the called method.
    */
-  // TODO(b/124903498): incompatible types in return.
-  @SuppressWarnings("nullness:return.type.incompatible")
+  @Nullable
   public static ComponentName startForegroundService(Context context, Intent intent) {
     if (Util.SDK_INT >= 26) {
       return context.startForegroundService(intent);

library/ui/src/main/java/com/google/android/exoplayer2/ui/PlayerNotificationManager.java

@@ -1265,8 +1265,6 @@ public class PlayerNotificationManager {
 
   private class NotificationBroadcastReceiver extends BroadcastReceiver {
 
-    // TODO(b/124903498): incompatible types in argument.
-    @SuppressWarnings("nullness:argument.type.incompatible")
     @Override
     public void onReceive(Context context, Intent intent) {
       Player player = PlayerNotificationManager.this.player;
@@ -1299,7 +1297,9 @@ public class PlayerNotificationManager {
         controlDispatcher.dispatchStop(player, /* reset= */ true);
       } else if (ACTION_DISMISS.equals(action)) {
         stopNotification(/* dismissedByUser= */ true);
-      } else if (customActionReceiver != null && customActions.containsKey(action)) {
+      } else if (action != null
+          && customActionReceiver != null
+          && customActions.containsKey(action)) {
         customActionReceiver.onCustomAction(player, action, intent);
       }
     }