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

@ -27,7 +27,6 @@ import com.google.appengine.tools.mapreduce.Mapper;
import com.google.appengine.tools.mapreduce.Reducer;
import com.google.appengine.tools.mapreduce.ReducerInput;
import com.google.auto.value.AutoValue;
import com.google.common.base.Optional;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMultiset;
import com.googlecode.objectify.Key;
@ -100,7 +99,7 @@ public final class DeleteOldCommitLogsAction implements Runnable {
new DeleteOldCommitLogsMapper(),
new DeleteOldCommitLogsReducer(deletionThreshold, isDryRun),
ImmutableList.of(
new CommitLogManifestInput(Optional.of(deletionThreshold)),
new CommitLogManifestInput(deletionThreshold),
EppResourceInputs.createKeyInput(EppResource.class)))));
}