Switch from Guava Optionals to Java 8 Optionals

This was a surprisingly involved change. Some of the difficulties included
java.util.Optional purposely not being Serializable (so I had to move a
few Optionals in mapreduce classes to @Nullable) and having to add the Truth
Java8 extension library for assertion support.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=171863777
This commit is contained in:
mcilwain 2017-10-11 13:09:26 -07:00 committed by jianglai
parent 184b2b56ac
commit c0f8da0c6e
581 changed files with 1325 additions and 932 deletions

View file

@ -18,9 +18,9 @@ import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import com.google.common.base.Optional;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import java.util.Optional;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.ThreadFactory;
import org.junit.Test;
@ -65,6 +65,6 @@ public class MetricReporterTest {
verify(reporter).runOneIteration();
InOrder interactions = Mockito.inOrder(writeQueue);
interactions.verify(writeQueue).offer(Optional.of(ImmutableList.<MetricPoint<?>>of()));
interactions.verify(writeQueue).offer(Optional.<ImmutableList<MetricPoint<?>>>absent());
interactions.verify(writeQueue).offer(Optional.<ImmutableList<MetricPoint<?>>>empty());
}
}