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/change/PutTopic.java

@@ -40,20 +40,19 @@ import com.google.inject.Provider;
 import com.google.inject.Singleton;
 
 @Singleton
-public class PutTopic implements RestModifyView<ChangeResource, Input>,
-    UiAction<ChangeResource> {
+public class PutTopic implements RestModifyView<ChangeResource, Input>, UiAction<ChangeResource> {
   private final Provider<ReviewDb> dbProvider;
   private final ChangeMessagesUtil cmUtil;
   private final BatchUpdate.Factory batchUpdateFactory;
   private final TopicEdited topicEdited;
 
   public static class Input {
-    @DefaultInput
-    public String topic;
+    @DefaultInput public String topic;
   }
 
   @Inject
-  PutTopic(Provider<ReviewDb> dbProvider,
+  PutTopic(
+      Provider<ReviewDb> dbProvider,
       ChangeMessagesUtil cmUtil,
       BatchUpdate.Factory batchUpdateFactory,
       TopicEdited topicEdited) {
@@ -72,13 +71,14 @@ public class PutTopic implements RestModifyView<ChangeResource, Input>,
     }
 
     Op op = new Op(input != null ? input : new Input());
-    try (BatchUpdate u = batchUpdateFactory.create(dbProvider.get(),
-        req.getChange().getProject(), ctl.getUser(), TimeUtil.nowTs())) {
+    try (BatchUpdate u =
+        batchUpdateFactory.create(
+            dbProvider.get(), req.getChange().getProject(), ctl.getUser(), TimeUtil.nowTs())) {
       u.addOp(req.getId(), op);
       u.execute();
     }
     return Strings.isNullOrEmpty(op.newTopicName)
-        ? Response.<String> none()
+        ? Response.<String>none()
         : Response.ok(op.newTopicName);
   }
 
@@ -108,14 +108,13 @@ public class PutTopic implements RestModifyView<ChangeResource, Input>,
       } else if (newTopicName.isEmpty()) {
         summary = "Topic " + oldTopicName + " removed";
       } else {
-        summary = String.format("Topic changed from %s to %s",
-            oldTopicName, newTopicName);
+        summary = String.format("Topic changed from %s to %s", oldTopicName, newTopicName);
       }
       change.setTopic(Strings.emptyToNull(newTopicName));
       update.setTopic(change.getTopic());
 
-      ChangeMessage cmsg = ChangeMessagesUtil.newMessage(ctx, summary,
-          ChangeMessagesUtil.TAG_SET_TOPIC);
+      ChangeMessage cmsg =
+          ChangeMessagesUtil.newMessage(ctx, summary, ChangeMessagesUtil.TAG_SET_TOPIC);
       cmUtil.addChangeMessage(ctx.getDb(), update, cmsg);
       return true;
     }
@@ -123,10 +122,7 @@ public class PutTopic implements RestModifyView<ChangeResource, Input>,
     @Override
     public void postUpdate(Context ctx) {
       if (change != null) {
-        topicEdited.fire(change,
-            ctx.getAccount(),
-            oldTopicName,
-            ctx.getWhen());
+        topicEdited.fire(change, ctx.getAccount(), oldTopicName, ctx.getWhen());
       }
     }
   }
@@ -134,7 +130,7 @@ public class PutTopic implements RestModifyView<ChangeResource, Input>,
   @Override
   public UiAction.Description getDescription(ChangeResource resource) {
     return new UiAction.Description()
-      .setLabel("Edit Topic")
-      .setVisible(resource.getControl().canEditTopicName());
+        .setLabel("Edit Topic")
+        .setVisible(resource.getControl().canEditTopicName());
   }
 }