<BUG>import com.google.common.util.concurrent.Futures;import com.google.common.util.concurrent.ListenableFuture;import com.google.common.util.concurrent.SettableFuture;</BUG><CONTEXT>import com.google.common.cache.RemovalListener;import com.google.common.cache.RemovalNotification;import com.google.common.collect.Iterables;import com.google.common.collect.Lists;import com.google.common.util.concurrent.FutureCallback;<extra_id_0>import org.slf4j.Logger;import org.slf4j.LoggerFactory;</CONTEXT>
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