From a7191efbf45942c2dc1e091eb257ae9b2260ee5d Mon Sep 17 00:00:00 2001
From: Mike Micatka <mmicatka@google.com>
Date: Fri, 28 Oct 2022 12:23:23 -0400
Subject: [PATCH 1/2] fix: adding an explicit check to prevent empty publishes

---
 .../src/main/java/com/google/cloud/pubsub/v1/Publisher.java   | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/Publisher.java b/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/Publisher.java
index 399d99658..6803e5a43 100644
--- a/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/Publisher.java
+++ b/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/Publisher.java
@@ -462,6 +462,10 @@ private ApiFuture<PublishResponse> publishCall(OutstandingBatch outstandingBatch
   }
 
   private void publishOutstandingBatch(final OutstandingBatch outstandingBatch) {
+    if (outstandingBatch.size() == 0) {
+      logger.log(Level.WARNING, "Attempted to publish batch with zero messages.");
+      return;
+    }
     final ApiFutureCallback<PublishResponse> futureCallback =
         new ApiFutureCallback<PublishResponse>() {
           @Override

From 9a883532c913fe64bb340e3c9b4ae6b55a9f96fa Mon Sep 17 00:00:00 2001
From: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Date: Fri, 28 Oct 2022 16:54:13 +0000
Subject: [PATCH 2/2] =?UTF-8?q?=F0=9F=A6=89=20Updates=20from=20OwlBot=20po?=
 =?UTF-8?q?st-processor?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md
---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 0bb7b14b1..942d05471 100644
--- a/README.md
+++ b/README.md
@@ -58,13 +58,13 @@ implementation 'com.google.cloud:google-cloud-pubsub'
 If you are using Gradle without BOM, add this to your dependencies:
 
 ```Groovy
-implementation 'com.google.cloud:google-cloud-pubsub:1.120.22'
+implementation 'com.google.cloud:google-cloud-pubsub:1.120.23'
 ```
 
 If you are using SBT, add this to your dependencies:
 
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-pubsub" % "1.120.22"
+libraryDependencies += "com.google.cloud" % "google-cloud-pubsub" % "1.120.23"
 ```
 
 ## Authentication