package com.google.common.util.concurrent;

import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Strings.isNullOrEmpty;
import static com.google.common.util.concurrent.Futures.getDone;
import static com.google.common.util.concurrent.MoreExecutors.directExecutor;

import com.google.common.util.concurrent.internal.InternalFutureFailureAccess;
import com.google.errorprone.annotations.CanIgnoreReturnValue;