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

@ -24,7 +24,6 @@ import static google.registry.util.CollectionUtils.nullToEmptyImmutableCopy;
import static google.registry.util.DateTimeUtils.END_OF_TIME;
import static google.registry.util.PreconditionsUtils.checkArgumentNotNull;
import com.google.common.base.Optional;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Sets;
@ -44,6 +43,7 @@ import google.registry.model.domain.rgp.GracePeriodStatus;
import google.registry.model.reporting.HistoryEntry;
import google.registry.model.transfer.TransferData.TransferServerApproveEntity;
import java.util.Objects;
import java.util.Optional;
import java.util.Set;
import javax.annotation.Nullable;
import org.joda.money.Money;
@ -391,7 +391,7 @@ public abstract class BillingEvent extends ImmutableObject
checkNotNull(instance.reason);
instance.recurrenceTimeOfYear = TimeOfYear.fromDateTime(instance.eventTime);
instance.recurrenceEndTime =
Optional.fromNullable(instance.recurrenceEndTime).or(END_OF_TIME);
Optional.ofNullable(instance.recurrenceEndTime).orElse(END_OF_TIME);
return super.build();
}
}