Retry account updates on LockFailureException

If an account update fails with LockFailureException (because the same
account was concurrently updated by another thread) we now retry the
account update.

In future AccountsUpdate should allow to update an account and its
external IDs atomically. For external ID updates there is a higher
chance of lock failures since the external IDs of all users are stored
in a single notes branch. Hence when AccountsUpdates takes to also
update external IDs it gets important to retry account updates that
failed due to lock failure. So this change is a preparation to support
updating accounts and external IDs atomically in future.

Change-Id: I2bc6b4cceb111855f48d02a68690003992b3dc53
Signed-off-by: Edwin Kempin <ekempin@google.com>

java/com/google/gerrit/server/account/PutName.java

@@ -66,7 +66,7 @@ public class PutName implements RestModifyView<AccountResource, NameInput> {
 
   public Response<String> apply(IdentifiedUser user, NameInput input)
       throws MethodNotAllowedException, ResourceNotFoundException, IOException,
-          ConfigInvalidException {
+          ConfigInvalidException, OrmException {
     if (input == null) {
       input = new NameInput();
     }