/guava/android/guava/src/com/google/common/util/concurrent/JdkFutureAdapters.java
this( delegate, defaultAdapterExecutor) ;this.adapterExecutor = checkNotNull( adapterExecutor) ;
this.adapterExecutor = checkNotNull ( adapterExecutor ) ;
private final Future<V> delegate; ListenableFutureAdapter(Future<V> delegate) { this(delegate, defaultAdapterExecutor); } ListenableFutureAdapter(Future<V> delegate, Executor adapterExecutor) { this.delegate = checkNotNull(delegate); <extra_id_0> } @Override protected Future<V> delegate() { return delegate; } @Override