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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.

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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
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4
java/google/registry/config/YamlUtils.java
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@ -18,9 +18,9 @@ import static com.google.common.base.Ascii.toLowerCase;
import static google.registry.util.FormattingLogger.getLoggerForCallerClass;
import static google.registry.util.ResourceUtils.readResourceUtf8;
import com.google.common.base.Optional;
import google.registry.util.FormattingLogger;
import java.util.Map;
import java.util.Optional;
import org.yaml.snakeyaml.Yaml;
/**
@ -134,7 +134,7 @@ public final class YamlUtils {
*/
@SuppressWarnings("unchecked")
private static Optional<Map<String, Object>> loadAsMap(Yaml yaml, String yamlString) {
return Optional.fromNullable((Map<String, Object>) yaml.load(yamlString));
return Optional.ofNullable((Map<String, Object>) yaml.load(yamlString));
}
private YamlUtils() {}