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.

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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

@ -19,6 +19,7 @@ import static com.google.common.base.Functions.constant;
import static com.google.common.collect.Iterables.transform;
import static com.google.common.collect.Maps.toMap;
import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.Truth8.assertThat;
import static com.google.common.util.concurrent.MoreExecutors.newDirectExecutorService;
import static google.registry.backup.BackupUtils.GcsMetadataKeys.LOWER_BOUND_CHECKPOINT;
import static google.registry.backup.BackupUtils.serializeEntity;