Format all Java files with google-java-format

Having a standard tool for formatting saves reviewers' valuable time.
google-java-format is Google's standard formatter and is somewhat
inspired by gofmt[1]. This commit formats everything using
google-java-format version 1.2.

The downside of this one-off formatting is breaking blame. This can be
somewhat hacked around with a tool like git-hyper-blame[2], but it's
definitely not optimal until/unless this kind of feature makes its way
to git core.

Not in this change:
* Tool support, e.g. Eclipse. The command must be run manually [3].
* Documentation of best practice, e.g. new 100-column default.

[1] https://talks.golang.org/2015/gofmt-en.slide#3
[2] https://commondatastorage.googleapis.com/chrome-infra-docs/flat/depot_tools/docs/html/git-hyper-blame.html
[3] git ls-files | grep java$ | xargs google-java-format -i

Change-Id: Id5f3c6de95ce0b68b41f0a478b5c99a93675aaa3
Signed-off-by: David Pursehouse <dpursehouse@collab.net>

gerrit-server/src/main/java/com/google/gerrit/server/git/ReceiveCommitsAdvertiseRefsHook.java

@@ -30,7 +30,10 @@ import com.google.gerrit.server.query.change.InternalChangeQuery;
 import com.google.gerrit.server.util.MagicBranch;
 import com.google.gwtorm.server.OrmException;
 import com.google.inject.Provider;
-
+import java.io.IOException;
+import java.util.Collections;
+import java.util.Map;
+import java.util.Set;
 import org.eclipse.jgit.lib.ObjectId;
 import org.eclipse.jgit.lib.Ref;
 import org.eclipse.jgit.transport.AdvertiseRefsHook;
@@ -40,20 +43,15 @@ import org.eclipse.jgit.transport.UploadPack;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.io.IOException;
-import java.util.Collections;
-import java.util.Map;
-import java.util.Set;
-
 /** Exposes only the non refs/changes/ reference names. */
 public class ReceiveCommitsAdvertiseRefsHook implements AdvertiseRefsHook {
-  private static final Logger log = LoggerFactory
-      .getLogger(ReceiveCommitsAdvertiseRefsHook.class);
+  private static final Logger log = LoggerFactory.getLogger(ReceiveCommitsAdvertiseRefsHook.class);
 
   @VisibleForTesting
   @AutoValue
   public abstract static class Result {
     public abstract Map<String, Ref> allRefs();
+
     public abstract Set<ObjectId> additionalHaves();
   }
 
@@ -61,8 +59,7 @@ public class ReceiveCommitsAdvertiseRefsHook implements AdvertiseRefsHook {
   private final Project.NameKey projectName;
 
   public ReceiveCommitsAdvertiseRefsHook(
-      Provider<InternalChangeQuery> queryProvider,
-      Project.NameKey projectName) {
+      Provider<InternalChangeQuery> queryProvider, Project.NameKey projectName) {
     this.queryProvider = queryProvider;
     this.projectName = projectName;
   }
@@ -74,8 +71,7 @@ public class ReceiveCommitsAdvertiseRefsHook implements AdvertiseRefsHook {
   }
 
   @Override
-  public void advertiseRefs(BaseReceivePack rp)
-      throws ServiceMayNotContinueException {
+  public void advertiseRefs(BaseReceivePack rp) throws ServiceMayNotContinueException {
     Map<String, Ref> oldRefs = rp.getAdvertisedRefs();
     if (oldRefs == null) {
       try {
@@ -121,11 +117,13 @@ public class ReceiveCommitsAdvertiseRefsHook implements AdvertiseRefsHook {
     int limit = 32;
     try {
       Set<ObjectId> r = Sets.newHashSetWithExpectedSize(limit);
-      for (ChangeData cd : queryProvider.get()
-          .setRequestedFields(OPEN_CHANGES_FIELDS)
-          .enforceVisibility(true)
-          .setLimit(limit)
-          .byProjectOpen(projectName)) {
+      for (ChangeData cd :
+          queryProvider
+              .get()
+              .setRequestedFields(OPEN_CHANGES_FIELDS)
+              .enforceVisibility(true)
+              .setLimit(limit)
+              .byProjectOpen(projectName)) {
         PatchSet ps = cd.currentPatchSet();
         if (ps != null) {
           ObjectId id = ObjectId.fromString(ps.getRevision().get());