https://source.android.com/ 
final class android.media.projection.MediaProjection$MediaProjectionCallback extends android.media.projection.IMediaProjectionCallback$Stub
  minor version: 0
  major version: 59
  flags: flags: (0x0030) ACC_FINAL, ACC_SUPER
  this_class: android.media.projection.MediaProjection$MediaProjectionCallback
  super_class: android.media.projection.IMediaProjectionCallback$Stub
{
  final android.media.projection.MediaProjection this$0;
    descriptor: Landroid/media/projection/MediaProjection;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  private void <init>(android.media.projection.MediaProjection);
    descriptor: (Landroid/media/projection/MediaProjection;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // android.media.projection.MediaProjection$MediaProjectionCallback this
         0: .line 185
            aload 0 /* this */
            aload 1
            putfield android.media.projection.MediaProjection$MediaProjectionCallback.this$0:Landroid/media/projection/MediaProjection;
            aload 0 /* this */
            invokespecial android.media.projection.IMediaProjectionCallback$Stub.<init>:()V
            return
        end local 0 // android.media.projection.MediaProjection$MediaProjectionCallback this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Landroid/media/projection/MediaProjection$MediaProjectionCallback;
    MethodParameters:
        Name  Flags
      this$0  final

  public void onStop();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=3, args_size=1
        start local 0 // android.media.projection.MediaProjection$MediaProjectionCallback this
         0: .line 188
            aload 0 /* this */
            getfield android.media.projection.MediaProjection$MediaProjectionCallback.this$0:Landroid/media/projection/MediaProjection;
            getfield android.media.projection.MediaProjection.mCallbacks:Ljava/util/Map;
            invokeinterface java.util.Map.values:()Ljava/util/Collection;
            invokeinterface java.util.Collection.iterator:()Ljava/util/Iterator;
            astore 2
            goto 3
      StackMap locals: android.media.projection.MediaProjection$MediaProjectionCallback top java.util.Iterator
      StackMap stack:
         1: aload 2
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast android.media.projection.MediaProjection$CallbackRecord
            astore 1 /* cbr */
        start local 1 // android.media.projection.MediaProjection$CallbackRecord cbr
         2: .line 189
            aload 1 /* cbr */
            invokevirtual android.media.projection.MediaProjection$CallbackRecord.onStop:()V
        end local 1 // android.media.projection.MediaProjection$CallbackRecord cbr
         3: .line 188
      StackMap locals:
      StackMap stack:
            aload 2
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 1
         4: .line 191
            return
        end local 0 // android.media.projection.MediaProjection$MediaProjectionCallback this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Landroid/media/projection/MediaProjection$MediaProjectionCallback;
            2    3     1   cbr  Landroid/media/projection/MediaProjection$CallbackRecord;
}
SourceFile: "MediaProjection.java"
NestHost: android.media.projection.MediaProjection
InnerClasses:
  public abstract Stub = android.media.projection.IMediaProjectionCallback$Stub of android.media.projection.IMediaProjectionCallback
  private final CallbackRecord = android.media.projection.MediaProjection$CallbackRecord of android.media.projection.MediaProjection
  private final MediaProjectionCallback = android.media.projection.MediaProjection$MediaProjectionCallback of android.media.projection.MediaProjection