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

@ -21,7 +21,6 @@ import static google.registry.model.ofy.ObjectifyService.ofy;
import static google.registry.model.registry.Registries.assertTldExists;
import com.google.common.base.Joiner;
import com.google.common.base.Optional;
import com.google.common.collect.ComparisonChain;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Ordering;
@ -35,6 +34,7 @@ import google.registry.model.ImmutableObject;
import google.registry.model.annotations.ReportedOn;
import google.registry.model.registrar.Registrar;
import google.registry.model.registry.Registry;
import java.util.Optional;
import org.joda.money.CurrencyUnit;
import org.joda.time.DateTime;
@ -194,7 +194,7 @@ public final class RegistrarCredit extends ImmutableObject implements Buildable
Registry.get(instance.tld).getCurrency().equals(instance.currency),
"Credits must be in the currency of the assigned TLD");
instance.description =
Optional.fromNullable(instance.description).or(instance.getDefaultDescription());
Optional.ofNullable(instance.description).orElse(instance.getDefaultDescription());
return super.build();
}
}