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

@ -16,8 +16,8 @@ package google.registry.model;
import static google.registry.util.DateTimeUtils.START_OF_TIME;
import com.google.common.base.Optional;
import google.registry.model.translators.UpdateAutoTimestampTranslatorFactory;
import java.util.Optional;
import org.joda.time.DateTime;
/**
@ -31,7 +31,7 @@ public class UpdateAutoTimestamp extends ImmutableObject {
/** Returns the timestamp, or {@link #START_OF_TIME} if it's null. */
public DateTime getTimestamp() {
return Optional.fromNullable(timestamp).or(START_OF_TIME);
return Optional.ofNullable(timestamp).orElse(START_OF_TIME);
}
public static UpdateAutoTimestamp create(DateTime timestamp) {