Fix JDK7 compatibility in branch-2.

This commit is contained in:
Chen Liang 2019-08-12 17:42:01 -07:00
parent 0d153dcb8c
commit 885b7f4c98
1 changed files with 0 additions and 1 deletions

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@ -36,7 +36,6 @@ import java.util.List;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.atomic.LongAccumulator;
import com.google.common.base.Function;
import com.google.common.base.Joiner;