Replace to(Upper|Lower)Case with Ascii.to$1Case

The presubmits are warning that toUpperCase() and toLowerCase() are locale-specific, and advise using Ascii.toUpperCase() and Ascii.toLowerCase() as a local-invariant alternative.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=127583677

java/google/registry/config/RegistryEnvironment.java

@@ -15,6 +15,7 @@
 package google.registry.config;
 
 import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Ascii;
 import javax.annotation.Nullable;
 
 /** Registry environments. */
@@ -50,7 +51,7 @@ public enum RegistryEnvironment {
 
   /** Returns environment configured by system property {@value #PROPERTY}. */
   public static RegistryEnvironment get() {
-    return valueOf(System.getProperty(PROPERTY, UNITTEST.name()).toUpperCase());
+    return valueOf(Ascii.toUpperCase(System.getProperty(PROPERTY, UNITTEST.name())));
   }
 
   /**

java/google/registry/export/DatastoreBackupInfo.java

@@ -21,6 +21,7 @@ import static org.joda.time.DateTimeZone.UTC;
 import com.google.appengine.api.datastore.Entity;
 import com.google.appengine.api.datastore.Text;
 import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Ascii;
 import com.google.common.base.Joiner;
 import com.google.common.base.Optional;
 import com.google.common.collect.ImmutableSet;
@@ -140,7 +141,7 @@ public class DatastoreBackupInfo {
             "Status: " + getStatus(),
             "Started: " + startTime,
             "Ended: " + completeTime.orNull(),
-            "Duration: " + getRunningTime().toPeriod().toString().substring(2).toLowerCase(),
+            "Duration: " + Ascii.toLowerCase(getRunningTime().toPeriod().toString().substring(2)),
             "GCS: " + gcsFilename.orNull(),
             "Kinds: " + kinds,
             "");

java/google/registry/model/domain/fee/FeeCommandDescriptor.java

@@ -14,6 +14,7 @@
 
 package google.registry.model.domain.fee;
 
+import com.google.common.base.Ascii;
 import com.google.common.base.CharMatcher;
 import google.registry.model.ImmutableObject;
 import javax.xml.bind.annotation.XmlAttribute;
@@ -56,7 +57,7 @@ public class FeeCommandDescriptor extends ImmutableObject {
     // Require the xml string to be lowercase.
     if (command != null && CharMatcher.javaLowerCase().matchesAllOf(command)) {
       try {
-        return CommandName.valueOf(command.toUpperCase());
+        return CommandName.valueOf(Ascii.toUpperCase(command));
       } catch (IllegalArgumentException e) {
         // Swallow this and return UNKNOWN below because there's no matching CommandName.
       }

java/google/registry/model/domain/launch/LaunchNotice.java

@@ -20,6 +20,7 @@ import static com.google.common.io.BaseEncoding.base16;
 import static java.nio.charset.StandardCharsets.UTF_8;
 import static java.util.concurrent.TimeUnit.MILLISECONDS;
 
+import com.google.common.base.Ascii;
 import com.google.common.base.CharMatcher;
 import com.google.common.base.Optional;
 import com.google.common.primitives.Ints;
@@ -101,7 +102,7 @@ public class LaunchNotice extends ImmutableObject {
     String tcnId = getNoticeId().getTcnId();
     checkArgument(tcnId.length() == 27);
 
-    int checksum = Ints.fromByteArray(base16().decode(tcnId.substring(0, 8).toUpperCase()));
+    int checksum = Ints.fromByteArray(base16().decode(Ascii.toUpperCase(tcnId.substring(0, 8))));
     String noticeId = tcnId.substring(8);
     checkArgument(CharMatcher.inRange('0', '9').matchesAllOf(noticeId));
 

java/google/registry/rde/DomainResourceToXjcConverter.java

@@ -14,6 +14,7 @@
 
 package google.registry.rde;
 
+import com.google.common.base.Ascii;
 import com.google.common.base.Optional;
 import com.google.common.collect.ImmutableSet;
 import com.googlecode.objectify.Ref;
@@ -280,7 +281,7 @@ final class DomainResourceToXjcConverter {
   private static XjcDomainContactType convertDesignatedContact(DesignatedContact model) {
     XjcDomainContactType bean = new XjcDomainContactType();
     ContactResource contact = model.getContactRef().get();
-    bean.setType(XjcDomainContactAttrType.fromValue(model.getType().toString().toLowerCase()));
+    bean.setType(XjcDomainContactAttrType.fromValue(Ascii.toLowerCase(model.getType().toString())));
     bean.setValue(contact.getContactId());
     return bean;
   }

java/google/registry/tmch/LordnLog.java

@@ -18,6 +18,7 @@ import static com.google.common.base.MoreObjects.toStringHelper;
 import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.base.Preconditions.checkNotNull;
 
+import com.google.common.base.Ascii;
 import com.google.common.base.Splitter;
 import com.google.common.collect.ImmutableMap;
 import com.google.re2j.Pattern;
@@ -218,7 +219,7 @@ public final class LordnLog implements Iterable<Entry<String, LordnLog.Result>>
     // +  <Status flag>, whether the LORDN file has been accepted for
     //    processing by the TMDB.  Possible values are "accepted" or
     //    "rejected".
-    Status status = Status.valueOf(firstLine.get(4).toUpperCase());
+    Status status = Status.valueOf(Ascii.toUpperCase(firstLine.get(4)));
 
     // +  <Warning flag>, whether the LORDN Log has any warning result
     //    codes.  Possible values are "no-warnings" or "warnings-
@@ -229,8 +230,11 @@ public final class LordnLog implements Iterable<Entry<String, LordnLog.Result>>
     //    processed in the LORDN file.
     int dnLines = Integer.parseInt(firstLine.get(6));
     int actual = lines.size() - 2;
-    checkArgument(dnLines == actual,
-        "Line 1: Number of entries (%d) differs from declaration (%d)", actual, dnLines);
+    checkArgument(
+        dnLines == actual,
+        "Line 1: Number of entries (%s) differs from declaration (%s)",
+        String.valueOf(actual),
+        String.valueOf(dnLines));
 
     // Second line contains headers: roid,result-code
     checkArgument(lines.get(1).equals("roid,result-code"),
@@ -244,8 +248,7 @@ public final class LordnLog implements Iterable<Entry<String, LordnLog.Result>>
           "Line %d: Expected 2 elements, found %d", i + 1, currentLine.size()));
       String roid = currentLine.get(0);
       int code = Integer.parseInt(currentLine.get(1));
-      Result result = checkNotNull(RESULTS.get(code),
-          "Line %d: Unknown result code: %d", i, code);
+      Result result = checkNotNull(RESULTS.get(code), "Line %s: Unknown result code: %s", i, code);
       builder.put(roid, result);
     }
 

java/google/registry/tools/AllocateDomainCommand.java

@@ -26,6 +26,7 @@ import static google.registry.tools.CommandUtilities.addHeader;
 
 import com.beust.jcommander.Parameter;
 import com.beust.jcommander.Parameters;
+import com.google.common.base.Ascii;
 import com.google.common.base.Function;
 import com.google.common.base.Joiner;
 import com.google.common.base.Splitter;
@@ -134,7 +135,7 @@ final class AllocateDomainCommand extends MutatingEppToolCommand {
             ImmutableMap.Builder<String, String> contactsMapBuilder = new ImmutableMap.Builder<>();
             for (DesignatedContact contact : application.getContacts()) {
               contactsMapBuilder.put(
-                  contact.getType().toString().toLowerCase(),
+                  Ascii.toLowerCase(contact.getType().toString()),
                   contact.getContactRef().get().getForeignKey());
             }
             LaunchNotice launchNotice = application.getLaunchNotice();

java/google/registry/tools/CommandUtilities.java

@@ -14,6 +14,7 @@
 
 package google.registry.tools;
 
+import com.google.common.base.Ascii;
 import com.google.common.base.Strings;
 
 /** Container class for static utility methods. */
@@ -25,6 +26,6 @@ class CommandUtilities {
 
   /** Prompts for yes/no input using promptText, defaulting to no. */
   static boolean promptForYes(String promptText) {
-    return System.console().readLine(promptText + " (y/N): ").toUpperCase().startsWith("Y");
+    return Ascii.toUpperCase(System.console().readLine(promptText + " (y/N): ")).startsWith("Y");
   }
 }

java/google/registry/tools/ConvertIdnCommand.java

@@ -19,6 +19,7 @@ import static google.registry.util.DomainNameUtils.canonicalizeDomainName;
 
 import com.beust.jcommander.Parameter;
 import com.beust.jcommander.Parameters;
+import com.google.common.base.Ascii;
 import google.registry.tools.Command.GtechCommand;
 import google.registry.util.Idn;
 import java.io.IOException;
@@ -37,7 +38,7 @@ final class ConvertIdnCommand implements Command, GtechCommand {
   public void run() throws IOException {
     for (String label : mainParameters) {
       if (label.startsWith(ACE_PREFIX)) {
-        System.out.println(Idn.toUnicode(label.toLowerCase()));
+        System.out.println(Idn.toUnicode(Ascii.toLowerCase(label)));
       } else {
         System.out.println(canonicalizeDomainName(label));
       }

java/google/registry/tools/DomainApplicationInfoCommand.java

@@ -18,6 +18,7 @@ import static google.registry.util.PreconditionsUtils.checkArgumentNotNull;
 
 import com.beust.jcommander.Parameter;
 import com.beust.jcommander.Parameters;
+import com.google.common.base.Ascii;
 import com.google.template.soy.data.SoyMapData;
 import google.registry.model.domain.launch.LaunchPhase;
 import google.registry.tools.Command.GtechCommand;
@@ -53,8 +54,8 @@ final class DomainApplicationInfoCommand extends EppToolCommand implements Gtech
 
   @Override
   void initEppToolCommand() {
-    LaunchPhase launchPhase =
-        checkArgumentNotNull(LaunchPhase.fromValue(phase.toLowerCase()), "Illegal launch phase.");
+    LaunchPhase launchPhase = checkArgumentNotNull(
+        LaunchPhase.fromValue(Ascii.toLowerCase(phase)), "Illegal launch phase.");
 
     setSoyTemplate(
         DomainApplicationInfoSoyInfo.getInstance(),

java/google/registry/tools/RegistryToolEnvironment.java

@@ -17,6 +17,7 @@ package google.registry.tools;
 import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.base.Preconditions.checkState;
 
+import com.google.common.base.Ascii;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
 import google.registry.config.RegistryEnvironment;
@@ -61,7 +62,7 @@ enum RegistryToolEnvironment {
    * @see #get()
    */
   static RegistryToolEnvironment parseFromArgs(String[] args) {
-    return valueOf(getFlagValue(args, FLAGS).toUpperCase());
+    return valueOf(Ascii.toUpperCase(getFlagValue(args, FLAGS)));
   }
 
   /**

java/google/registry/tools/server/VerifyOteAction.java

@@ -23,6 +23,7 @@ import static google.registry.util.CollectionUtils.isNullOrEmpty;
 import static google.registry.util.DomainNameUtils.ACE_PREFIX;
 import static java.util.Arrays.asList;
 
+import com.google.common.base.Ascii;
 import com.google.common.base.Function;
 import com.google.common.base.Joiner;
 import com.google.common.base.Predicate;
@@ -250,7 +251,7 @@ public class VerifyOteAction implements Runnable, JsonAction {
 
     /** Returns a more human-readable translation of the enum constant. */
     String description() {
-      return this.name().replace('_', ' ').toLowerCase();
+      return Ascii.toLowerCase(this.name().replace('_', ' '));
     }
 
     /** An {@link EppInput} might match multiple actions, so check if this action matches. */

java/google/registry/ui/forms/FormField.java

@@ -18,6 +18,7 @@ import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.base.Preconditions.checkNotNull;
 import static com.google.common.base.Preconditions.checkState;
 
+import com.google.common.base.Ascii;
 import com.google.common.base.CharMatcher;
 import com.google.common.base.Function;
 import com.google.common.base.Functions;
@@ -30,6 +31,7 @@ import com.google.common.collect.Range;
 import com.google.re2j.Pattern;
 import java.util.Collection;
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 import java.util.Set;
 import javax.annotation.Detainted;
@@ -560,7 +562,7 @@ public final class FormField<I, O> {
           @Nullable
           @Override
           public String apply(@Nullable String input) {
-            return input != null ? input.toUpperCase() : null;
+            return input != null ? input.toUpperCase(Locale.ENGLISH) : null;
           }};
 
     private static final Function<String, String> LOWERCASE_FUNCTION =
@@ -568,7 +570,7 @@ public final class FormField<I, O> {
           @Nullable
           @Override
           public String apply(@Nullable String input) {
-            return input != null ? input.toLowerCase() : null;
+            return input != null ? input.toLowerCase(Locale.ENGLISH) : null;
           }};
 
     private static final Function<Object, Object> REQUIRED_FUNCTION =
@@ -587,8 +589,8 @@ public final class FormField<I, O> {
           @Nullable
           @Override
           public Object apply(@Nullable Object input) {
-            return input instanceof CharSequence && ((CharSequence) input).length() == 0
-                || input instanceof Collection && ((Collection<?>) input).isEmpty()
+            return ((input instanceof CharSequence) && (((CharSequence) input).length() == 0))
+                || ((input instanceof Collection) && ((Collection<?>) input).isEmpty())
                 ? null : input;
           }};
 
@@ -709,7 +711,7 @@ public final class FormField<I, O> {
       @Override
       public C apply(@Nullable O input) {
         try {
-          return input != null ? Enum.valueOf(enumClass, ((String) input).toUpperCase()) : null;
+          return input != null ? Enum.valueOf(enumClass, Ascii.toUpperCase((String) input)) : null;
         } catch (IllegalArgumentException e) {
           throw new FormFieldException(
               String.format("Enum %s does not contain '%s'", enumClass.getSimpleName(), input));

java/google/registry/ui/server/RegistrarFormFields.java

@@ -19,6 +19,7 @@ import static com.google.common.collect.Range.atMost;
 import static com.google.common.collect.Range.closed;
 import static google.registry.util.DomainNameUtils.canonicalizeDomainName;
 
+import com.google.common.base.Ascii;
 import com.google.common.base.Function;
 import com.google.common.base.Splitter;
 import com.google.common.collect.ImmutableList;
@@ -354,7 +355,7 @@ public final class RegistrarFormFields {
         }
         for (String state : stateField.extractUntyped(args).asSet()) {
           if ("US".equals(countryCode)) {
-            state = state.toUpperCase();
+            state = Ascii.toUpperCase(state);
             if (!StateCode.US_MAP.containsKey(state)) {
               throw new FormFieldException(stateField, "Unknown US state code.");
             }

java/google/registry/util/Idn.java

@@ -57,8 +57,8 @@ public final class Idn {
   }
 
   /**
-   * Translates a string from Unicode to ASCII Compatible Encoding (ACE), as defined by the ToASCII
-   * operation of <a href="http://www.ietf.org/rfc/rfc3490.txt">RFC 3490</a>.
+   * Translates a string from ASCII Compatible Encoding (ACE) to Unicode, as defined by the
+   * ToUnicode operation of <a href="http://www.ietf.org/rfc/rfc3490.txt">RFC 3490</a>.
    *
    * <p>This method always uses <a href="http://unicode.org/reports/tr46/">UTS46 transitional
    * processing</a>.

java/google/registry/util/RegistrarUtils.java

@@ -16,11 +16,13 @@ package google.registry.util;
 
 import static com.google.common.base.CharMatcher.javaLetterOrDigit;
 
+import com.google.common.base.Ascii;
+
 /** Utilities for working with {@code Registrar} objects. */
 public class RegistrarUtils {
   /** Strip out anything that isn't a letter or digit, and lowercase. */
   public static String normalizeRegistrarName(String name) {
-    return javaLetterOrDigit().retainFrom(name).toLowerCase();
+    return Ascii.toLowerCase(javaLetterOrDigit().retainFrom(name));
   }
 
   /**
@@ -29,6 +31,6 @@ public class RegistrarUtils {
    * in Datastore, and is suitable for use in email addresses.
    */
   public static String normalizeClientId(String clientId) {
-    return clientId.toLowerCase().replaceAll("[^a-z0-9\\-]", "");
+    return Ascii.toLowerCase(clientId).replaceAll("[^a-z0-9\\-]", "");
   }
 }

java/google/registry/util/UrlFetchUtils.java

@@ -26,6 +26,7 @@ import static java.nio.charset.StandardCharsets.UTF_8;
 import com.google.appengine.api.urlfetch.HTTPHeader;
 import com.google.appengine.api.urlfetch.HTTPRequest;
 import com.google.appengine.api.urlfetch.HTTPResponse;
+import com.google.common.base.Ascii;
 import com.google.common.base.Optional;
 import com.google.common.net.MediaType;
 import java.security.NoSuchAlgorithmException;
@@ -49,9 +50,9 @@ public final class UrlFetchUtils {
   }
 
   private static Optional<String> getHeaderFirstInternal(Iterable<HTTPHeader> hdrs, String name) {
-    name = name.toLowerCase();
+    name = Ascii.toLowerCase(name);
     for (HTTPHeader header : hdrs) {
-      if (header.getName().toLowerCase().equals(name)) {
+      if (Ascii.toLowerCase(header.getName()).equals(name)) {
         return Optional.of(header.getValue());
       }
     }