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Switch from Guava Optionals to Java 8 Optionals

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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
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4
java/google/registry/ui/server/registrar/SessionUtils.java
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@ -20,7 +20,6 @@ import static google.registry.model.ofy.ObjectifyService.ofy;
import static google.registry.util.PreconditionsUtils.checkArgumentPresent;
import com.google.appengine.api.users.User;
import com.google.common.base.Optional;
import com.google.common.base.Strings;
import com.googlecode.objectify.Key;
import google.registry.config.RegistryConfig.Config;
@ -30,6 +29,7 @@ import google.registry.request.HttpException.ForbiddenException;
import google.registry.request.auth.AuthResult;
import google.registry.request.auth.UserAuthInfo;
import google.registry.util.FormattingLogger;
import java.util.Optional;
import javax.annotation.CheckReturnValue;
import javax.annotation.concurrent.Immutable;
import javax.inject.Inject;
@ -167,7 +167,7 @@ public class SessionUtils {
.filter("gaeUserId", gaeUserId)
.first().now();
if (contact == null) {
return Optional.absent();
return Optional.empty();
}
String registrarClientId = contact.getParent().getName();
Optional<Registrar> result = Registrar.loadByClientIdCached(registrarClientId);