androidx.concurrent.futures.AbstractResolvableFuture$Listener -> r0:
# {"id":"sourceFile","fileName":"AbstractResolvableFuture.java"}
    androidx.concurrent.futures.AbstractResolvableFuture$Listener next -> a
      # {"id":"com.android.tools.r8.residualsignature","signature":"Lr0;"}
    androidx.concurrent.futures.AbstractResolvableFuture$Listener TOMBSTONE -> b
      # {"id":"com.android.tools.r8.residualsignature","signature":"Lr0;"}
    1:2:void <clinit>():202:202 -> <clinit>
    3:5:void <init>(java.lang.Runnable,java.util.concurrent.Executor):210:210 -> <clinit>
    3:5:void <clinit>():202 -> <clinit>
    6:8:void <clinit>():202:202 -> <clinit>
