diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ApproveRolloutRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ApproveRolloutRequest.java
index 2244109..90ab57b 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ApproveRolloutRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ApproveRolloutRequest.java
@@ -205,7 +205,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
     if (approved_ != false) {
@@ -220,7 +220,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
     }
     if (approved_ != false) {
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/BuildArtifact.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/BuildArtifact.java
index c9f3fab..0162da3 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/BuildArtifact.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/BuildArtifact.java
@@ -235,10 +235,10 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getTagBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tag_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, tag_);
     }
-    if (!getImageBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(image_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, image_);
     }
     unknownFields.writeTo(output);
@@ -250,10 +250,10 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getTagBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(tag_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, tag_);
     }
-    if (!getImageBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(image_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, image_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Config.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Config.java
index 8a2ef44..3bf4426 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Config.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Config.java
@@ -330,13 +330,13 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
     for (int i = 0; i < supportedVersions_.size(); i++) {
       output.writeMessage(2, supportedVersions_.get(i));
     }
-    if (!getDefaultSkaffoldVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(defaultSkaffoldVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, defaultSkaffoldVersion_);
     }
     unknownFields.writeTo(output);
@@ -348,14 +348,14 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
     }
     for (int i = 0; i < supportedVersions_.size(); i++) {
       size +=
           com.google.protobuf.CodedOutputStream.computeMessageSize(2, supportedVersions_.get(i));
     }
-    if (!getDefaultSkaffoldVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(defaultSkaffoldVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, defaultSkaffoldVersion_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/CreateDeliveryPipelineRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/CreateDeliveryPipelineRequest.java
index af20214..ab3fd7a 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/CreateDeliveryPipelineRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/CreateDeliveryPipelineRequest.java
@@ -408,16 +408,16 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getParentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
     }
-    if (!getDeliveryPipelineIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(deliveryPipelineId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, deliveryPipelineId_);
     }
     if (deliveryPipeline_ != null) {
       output.writeMessage(3, getDeliveryPipeline());
     }
-    if (!getRequestIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(requestId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, requestId_);
     }
     if (validateOnly_ != false) {
@@ -432,16 +432,16 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getParentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
     }
-    if (!getDeliveryPipelineIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(deliveryPipelineId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, deliveryPipelineId_);
     }
     if (deliveryPipeline_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getDeliveryPipeline());
     }
-    if (!getRequestIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(requestId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, requestId_);
     }
     if (validateOnly_ != false) {
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/CreateReleaseRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/CreateReleaseRequest.java
index 6e9befe..399c778 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/CreateReleaseRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/CreateReleaseRequest.java
@@ -404,16 +404,16 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getParentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
     }
-    if (!getReleaseIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(releaseId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, releaseId_);
     }
     if (release_ != null) {
       output.writeMessage(3, getRelease());
     }
-    if (!getRequestIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(requestId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, requestId_);
     }
     if (validateOnly_ != false) {
@@ -428,16 +428,16 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getParentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
     }
-    if (!getReleaseIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(releaseId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, releaseId_);
     }
     if (release_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getRelease());
     }
-    if (!getRequestIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(requestId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, requestId_);
     }
     if (validateOnly_ != false) {
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/CreateRolloutRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/CreateRolloutRequest.java
index f9081af..6e6d475 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/CreateRolloutRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/CreateRolloutRequest.java
@@ -404,16 +404,16 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getParentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
     }
-    if (!getRolloutIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(rolloutId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, rolloutId_);
     }
     if (rollout_ != null) {
       output.writeMessage(3, getRollout());
     }
-    if (!getRequestIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(requestId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, requestId_);
     }
     if (validateOnly_ != false) {
@@ -428,16 +428,16 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getParentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
     }
-    if (!getRolloutIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(rolloutId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, rolloutId_);
     }
     if (rollout_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getRollout());
     }
-    if (!getRequestIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(requestId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, requestId_);
     }
     if (validateOnly_ != false) {
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/CreateTargetRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/CreateTargetRequest.java
index e19f99d..96f415d 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/CreateTargetRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/CreateTargetRequest.java
@@ -404,16 +404,16 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getParentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
     }
-    if (!getTargetIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(targetId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, targetId_);
     }
     if (target_ != null) {
       output.writeMessage(3, getTarget());
     }
-    if (!getRequestIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(requestId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, requestId_);
     }
     if (validateOnly_ != false) {
@@ -428,16 +428,16 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getParentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
     }
-    if (!getTargetIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(targetId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, targetId_);
     }
     if (target_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getTarget());
     }
-    if (!getRequestIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(requestId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, requestId_);
     }
     if (validateOnly_ != false) {
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/DefaultPool.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/DefaultPool.java
index ca58a3a..1b09041 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/DefaultPool.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/DefaultPool.java
@@ -241,10 +241,10 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getServiceAccountBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(serviceAccount_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, serviceAccount_);
     }
-    if (!getArtifactStorageBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(artifactStorage_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, artifactStorage_);
     }
     unknownFields.writeTo(output);
@@ -256,10 +256,10 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getServiceAccountBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(serviceAccount_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, serviceAccount_);
     }
-    if (!getArtifactStorageBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(artifactStorage_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, artifactStorage_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/DeleteDeliveryPipelineRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/DeleteDeliveryPipelineRequest.java
index 6dd2ded..4ee2205 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/DeleteDeliveryPipelineRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/DeleteDeliveryPipelineRequest.java
@@ -391,10 +391,10 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
-    if (!getRequestIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(requestId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, requestId_);
     }
     if (allowMissing_ != false) {
@@ -403,7 +403,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (validateOnly_ != false) {
       output.writeBool(4, validateOnly_);
     }
-    if (!getEtagBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(etag_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, etag_);
     }
     if (force_ != false) {
@@ -418,10 +418,10 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
     }
-    if (!getRequestIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(requestId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, requestId_);
     }
     if (allowMissing_ != false) {
@@ -430,7 +430,7 @@ public int getSerializedSize() {
     if (validateOnly_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(4, validateOnly_);
     }
-    if (!getEtagBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(etag_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, etag_);
     }
     if (force_ != false) {
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/DeleteTargetRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/DeleteTargetRequest.java
index 24d64da..574b075 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/DeleteTargetRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/DeleteTargetRequest.java
@@ -366,10 +366,10 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
-    if (!getRequestIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(requestId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, requestId_);
     }
     if (allowMissing_ != false) {
@@ -378,7 +378,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (validateOnly_ != false) {
       output.writeBool(4, validateOnly_);
     }
-    if (!getEtagBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(etag_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, etag_);
     }
     unknownFields.writeTo(output);
@@ -390,10 +390,10 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
     }
-    if (!getRequestIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(requestId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, requestId_);
     }
     if (allowMissing_ != false) {
@@ -402,7 +402,7 @@ public int getSerializedSize() {
     if (validateOnly_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(4, validateOnly_);
     }
-    if (!getEtagBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(etag_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, etag_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/DeliveryPipeline.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/DeliveryPipeline.java
index fe3f48f..0c34d19 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/DeliveryPipeline.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/DeliveryPipeline.java
@@ -937,13 +937,13 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
-    if (!getUidBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uid_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, uid_);
     }
-    if (!getDescriptionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, description_);
     }
     com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
@@ -959,7 +959,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (pipelineCase_ == 8) {
       output.writeMessage(8, (com.google.cloud.deploy.v1.SerialPipeline) pipeline_);
     }
-    if (!getEtagBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(etag_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 10, etag_);
     }
     if (condition_ != null) {
@@ -974,13 +974,13 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
     }
-    if (!getUidBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uid_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, uid_);
     }
-    if (!getDescriptionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, description_);
     }
     for (java.util.Map.Entry<java.lang.String, java.lang.String> entry :
@@ -1014,7 +1014,7 @@ public int getSerializedSize() {
           com.google.protobuf.CodedOutputStream.computeMessageSize(
               8, (com.google.cloud.deploy.v1.SerialPipeline) pipeline_);
     }
-    if (!getEtagBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(etag_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(10, etag_);
     }
     if (condition_ != null) {
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetConfigRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetConfigRequest.java
index a66a018..0c5d422 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetConfigRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetConfigRequest.java
@@ -178,7 +178,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
     unknownFields.writeTo(output);
@@ -190,7 +190,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetDeliveryPipelineRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetDeliveryPipelineRequest.java
index 48aa227..0cdacf3 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetDeliveryPipelineRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetDeliveryPipelineRequest.java
@@ -180,7 +180,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
     unknownFields.writeTo(output);
@@ -192,7 +192,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetReleaseRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetReleaseRequest.java
index 8825ff2..8d398cf 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetReleaseRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetReleaseRequest.java
@@ -180,7 +180,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
     unknownFields.writeTo(output);
@@ -192,7 +192,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetRolloutRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetRolloutRequest.java
index 721c04a..390a349 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetRolloutRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetRolloutRequest.java
@@ -180,7 +180,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
     unknownFields.writeTo(output);
@@ -192,7 +192,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetTargetRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetTargetRequest.java
index 99dcf2f..d8c72a3 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetTargetRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GetTargetRequest.java
@@ -180,7 +180,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
     unknownFields.writeTo(output);
@@ -192,7 +192,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GkeCluster.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GkeCluster.java
index a06a781..95c6629 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GkeCluster.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/GkeCluster.java
@@ -176,7 +176,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getClusterBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cluster_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, cluster_);
     }
     unknownFields.writeTo(output);
@@ -188,7 +188,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getClusterBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cluster_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, cluster_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListDeliveryPipelinesRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListDeliveryPipelinesRequest.java
index 5218eed..18ed7fb 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListDeliveryPipelinesRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListDeliveryPipelinesRequest.java
@@ -385,19 +385,19 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getParentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
     }
     if (pageSize_ != 0) {
       output.writeInt32(2, pageSize_);
     }
-    if (!getPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pageToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, pageToken_);
     }
-    if (!getFilterBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(filter_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, filter_);
     }
-    if (!getOrderByBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(orderBy_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, orderBy_);
     }
     unknownFields.writeTo(output);
@@ -409,19 +409,19 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getParentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
     }
     if (pageSize_ != 0) {
       size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, pageSize_);
     }
-    if (!getPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pageToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, pageToken_);
     }
-    if (!getFilterBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(filter_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, filter_);
     }
-    if (!getOrderByBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(orderBy_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, orderBy_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListDeliveryPipelinesResponse.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListDeliveryPipelinesResponse.java
index 4c35c7c..9153138 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListDeliveryPipelinesResponse.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListDeliveryPipelinesResponse.java
@@ -341,7 +341,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < deliveryPipelines_.size(); i++) {
       output.writeMessage(1, deliveryPipelines_.get(i));
     }
-    if (!getNextPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
     }
     for (int i = 0; i < unreachable_.size(); i++) {
@@ -360,7 +360,7 @@ public int getSerializedSize() {
       size +=
           com.google.protobuf.CodedOutputStream.computeMessageSize(1, deliveryPipelines_.get(i));
     }
-    if (!getNextPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
     }
     {
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListReleasesRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListReleasesRequest.java
index a94eb33..ce804f1 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListReleasesRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListReleasesRequest.java
@@ -382,19 +382,19 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getParentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
     }
     if (pageSize_ != 0) {
       output.writeInt32(2, pageSize_);
     }
-    if (!getPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pageToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, pageToken_);
     }
-    if (!getFilterBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(filter_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, filter_);
     }
-    if (!getOrderByBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(orderBy_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, orderBy_);
     }
     unknownFields.writeTo(output);
@@ -406,19 +406,19 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getParentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
     }
     if (pageSize_ != 0) {
       size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, pageSize_);
     }
-    if (!getPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pageToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, pageToken_);
     }
-    if (!getFilterBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(filter_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, filter_);
     }
-    if (!getOrderByBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(orderBy_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, orderBy_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListReleasesResponse.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListReleasesResponse.java
index c5a6623..9d78709 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListReleasesResponse.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListReleasesResponse.java
@@ -339,7 +339,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < releases_.size(); i++) {
       output.writeMessage(1, releases_.get(i));
     }
-    if (!getNextPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
     }
     for (int i = 0; i < unreachable_.size(); i++) {
@@ -357,7 +357,7 @@ public int getSerializedSize() {
     for (int i = 0; i < releases_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, releases_.get(i));
     }
-    if (!getNextPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
     }
     {
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListRolloutsRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListRolloutsRequest.java
index 8300b1e..06137a2 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListRolloutsRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListRolloutsRequest.java
@@ -382,19 +382,19 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getParentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
     }
     if (pageSize_ != 0) {
       output.writeInt32(2, pageSize_);
     }
-    if (!getPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pageToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, pageToken_);
     }
-    if (!getFilterBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(filter_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, filter_);
     }
-    if (!getOrderByBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(orderBy_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, orderBy_);
     }
     unknownFields.writeTo(output);
@@ -406,19 +406,19 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getParentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
     }
     if (pageSize_ != 0) {
       size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, pageSize_);
     }
-    if (!getPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pageToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, pageToken_);
     }
-    if (!getFilterBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(filter_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, filter_);
     }
-    if (!getOrderByBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(orderBy_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, orderBy_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListRolloutsResponse.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListRolloutsResponse.java
index 5739116..360fecf 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListRolloutsResponse.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListRolloutsResponse.java
@@ -339,7 +339,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < rollouts_.size(); i++) {
       output.writeMessage(1, rollouts_.get(i));
     }
-    if (!getNextPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
     }
     for (int i = 0; i < unreachable_.size(); i++) {
@@ -357,7 +357,7 @@ public int getSerializedSize() {
     for (int i = 0; i < rollouts_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, rollouts_.get(i));
     }
-    if (!getNextPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
     }
     {
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListTargetsRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListTargetsRequest.java
index e99039b..17e5fb6 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListTargetsRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListTargetsRequest.java
@@ -384,19 +384,19 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getParentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
     }
     if (pageSize_ != 0) {
       output.writeInt32(2, pageSize_);
     }
-    if (!getPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pageToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, pageToken_);
     }
-    if (!getFilterBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(filter_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, filter_);
     }
-    if (!getOrderByBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(orderBy_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, orderBy_);
     }
     unknownFields.writeTo(output);
@@ -408,19 +408,19 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getParentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
     }
     if (pageSize_ != 0) {
       size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, pageSize_);
     }
-    if (!getPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pageToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, pageToken_);
     }
-    if (!getFilterBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(filter_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, filter_);
     }
-    if (!getOrderByBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(orderBy_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, orderBy_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListTargetsResponse.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListTargetsResponse.java
index f1b86af..0bde947 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListTargetsResponse.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/ListTargetsResponse.java
@@ -338,7 +338,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < targets_.size(); i++) {
       output.writeMessage(1, targets_.get(i));
     }
-    if (!getNextPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
     }
     for (int i = 0; i < unreachable_.size(); i++) {
@@ -356,7 +356,7 @@ public int getSerializedSize() {
     for (int i = 0; i < targets_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, targets_.get(i));
     }
-    if (!getNextPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
     }
     {
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/OperationMetadata.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/OperationMetadata.java
index 549c642..6dad9a7 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/OperationMetadata.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/OperationMetadata.java
@@ -505,19 +505,19 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (endTime_ != null) {
       output.writeMessage(2, getEndTime());
     }
-    if (!getTargetBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(target_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, target_);
     }
-    if (!getVerbBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(verb_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, verb_);
     }
-    if (!getStatusMessageBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(statusMessage_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, statusMessage_);
     }
     if (requestedCancellation_ != false) {
       output.writeBool(6, requestedCancellation_);
     }
-    if (!getApiVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(apiVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 7, apiVersion_);
     }
     unknownFields.writeTo(output);
@@ -535,19 +535,19 @@ public int getSerializedSize() {
     if (endTime_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getEndTime());
     }
-    if (!getTargetBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(target_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, target_);
     }
-    if (!getVerbBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(verb_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, verb_);
     }
-    if (!getStatusMessageBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(statusMessage_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, statusMessage_);
     }
     if (requestedCancellation_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(6, requestedCancellation_);
     }
-    if (!getApiVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(apiVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, apiVersion_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/PrivatePool.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/PrivatePool.java
index 06f0035..5700f66 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/PrivatePool.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/PrivatePool.java
@@ -304,13 +304,13 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getWorkerPoolBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(workerPool_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, workerPool_);
     }
-    if (!getServiceAccountBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(serviceAccount_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, serviceAccount_);
     }
-    if (!getArtifactStorageBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(artifactStorage_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, artifactStorage_);
     }
     unknownFields.writeTo(output);
@@ -322,13 +322,13 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getWorkerPoolBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(workerPool_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, workerPool_);
     }
-    if (!getServiceAccountBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(serviceAccount_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, serviceAccount_);
     }
-    if (!getArtifactStorageBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(artifactStorage_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, artifactStorage_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Release.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Release.java
index 0d71bcd..804a281 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Release.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Release.java
@@ -989,7 +989,7 @@ public final boolean isInitialized() {
 
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-      if (!getRenderingBuildBytes().isEmpty()) {
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(renderingBuild_)) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, renderingBuild_);
       }
       if (renderingState_
@@ -1007,7 +1007,7 @@ public int getSerializedSize() {
       if (size != -1) return size;
 
       size = 0;
-      if (!getRenderingBuildBytes().isEmpty()) {
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(renderingBuild_)) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, renderingBuild_);
       }
       if (renderingState_
@@ -2844,13 +2844,13 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
-    if (!getUidBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uid_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, uid_);
     }
-    if (!getDescriptionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, description_);
     }
     com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
@@ -2866,7 +2866,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (renderEndTime_ != null) {
       output.writeMessage(8, getRenderEndTime());
     }
-    if (!getSkaffoldConfigPathBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(skaffoldConfigPath_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 9, skaffoldConfigPath_);
     }
     for (int i = 0; i < buildArtifacts_.size(); i++) {
@@ -2882,13 +2882,13 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
         != com.google.cloud.deploy.v1.Release.RenderState.RENDER_STATE_UNSPECIFIED.getNumber()) {
       output.writeEnum(13, renderState_);
     }
-    if (!getEtagBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(etag_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 16, etag_);
     }
-    if (!getSkaffoldConfigUriBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(skaffoldConfigUri_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 17, skaffoldConfigUri_);
     }
-    if (!getSkaffoldVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(skaffoldVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 19, skaffoldVersion_);
     }
     com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
@@ -2904,13 +2904,13 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
     }
-    if (!getUidBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uid_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, uid_);
     }
-    if (!getDescriptionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, description_);
     }
     for (java.util.Map.Entry<java.lang.String, java.lang.String> entry :
@@ -2942,7 +2942,7 @@ public int getSerializedSize() {
     if (renderEndTime_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(8, getRenderEndTime());
     }
-    if (!getSkaffoldConfigPathBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(skaffoldConfigPath_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(9, skaffoldConfigPath_);
     }
     for (int i = 0; i < buildArtifacts_.size(); i++) {
@@ -2960,13 +2960,13 @@ public int getSerializedSize() {
         != com.google.cloud.deploy.v1.Release.RenderState.RENDER_STATE_UNSPECIFIED.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(13, renderState_);
     }
-    if (!getEtagBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(etag_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(16, etag_);
     }
-    if (!getSkaffoldConfigUriBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(skaffoldConfigUri_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(17, skaffoldConfigUri_);
     }
-    if (!getSkaffoldVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(skaffoldVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(19, skaffoldVersion_);
     }
     for (java.util.Map.Entry<java.lang.String, com.google.cloud.deploy.v1.TargetArtifact> entry :
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Rollout.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Rollout.java
index 51bded6..bf4d1f7 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Rollout.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Rollout.java
@@ -1703,13 +1703,13 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
-    if (!getUidBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uid_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, uid_);
     }
-    if (!getDescriptionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, description_);
     }
     com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
@@ -1739,16 +1739,16 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (state_ != com.google.cloud.deploy.v1.Rollout.State.STATE_UNSPECIFIED.getNumber()) {
       output.writeEnum(13, state_);
     }
-    if (!getFailureReasonBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(failureReason_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 14, failureReason_);
     }
-    if (!getEtagBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(etag_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 16, etag_);
     }
-    if (!getDeployingBuildBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(deployingBuild_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 17, deployingBuild_);
     }
-    if (!getTargetIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(targetId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 18, targetId_);
     }
     unknownFields.writeTo(output);
@@ -1760,13 +1760,13 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
     }
-    if (!getUidBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uid_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, uid_);
     }
-    if (!getDescriptionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, description_);
     }
     for (java.util.Map.Entry<java.lang.String, java.lang.String> entry :
@@ -1812,16 +1812,16 @@ public int getSerializedSize() {
     if (state_ != com.google.cloud.deploy.v1.Rollout.State.STATE_UNSPECIFIED.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(13, state_);
     }
-    if (!getFailureReasonBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(failureReason_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(14, failureReason_);
     }
-    if (!getEtagBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(etag_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(16, etag_);
     }
-    if (!getDeployingBuildBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(deployingBuild_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(17, deployingBuild_);
     }
-    if (!getTargetIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(targetId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(18, targetId_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/SkaffoldVersion.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/SkaffoldVersion.java
index e0a607d..d3c2235 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/SkaffoldVersion.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/SkaffoldVersion.java
@@ -234,7 +234,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(version_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, version_);
     }
     if (supportEndDate_ != null) {
@@ -249,7 +249,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(version_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, version_);
     }
     if (supportEndDate_ != null) {
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Stage.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Stage.java
index 24ac549..655e4c6 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Stage.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Stage.java
@@ -263,7 +263,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getTargetIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(targetId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, targetId_);
     }
     for (int i = 0; i < profiles_.size(); i++) {
@@ -278,7 +278,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getTargetIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(targetId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, targetId_);
     }
     {
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Target.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Target.java
index 18e74c4..c666191 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Target.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/Target.java
@@ -1065,16 +1065,16 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
-    if (!getTargetIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(targetId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, targetId_);
     }
-    if (!getUidBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uid_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, uid_);
     }
-    if (!getDescriptionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, description_);
     }
     com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
@@ -1087,7 +1087,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (updateTime_ != null) {
       output.writeMessage(9, getUpdateTime());
     }
-    if (!getEtagBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(etag_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 12, etag_);
     }
     if (requireApproval_ != false) {
@@ -1108,16 +1108,16 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
     }
-    if (!getTargetIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(targetId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, targetId_);
     }
-    if (!getUidBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uid_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, uid_);
     }
-    if (!getDescriptionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, description_);
     }
     for (java.util.Map.Entry<java.lang.String, java.lang.String> entry :
@@ -1146,7 +1146,7 @@ public int getSerializedSize() {
     if (updateTime_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(9, getUpdateTime());
     }
-    if (!getEtagBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(etag_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(12, etag_);
     }
     if (requireApproval_ != false) {
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/TargetArtifact.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/TargetArtifact.java
index f0eeece..4f98383 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/TargetArtifact.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/TargetArtifact.java
@@ -358,10 +358,10 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getSkaffoldConfigPathBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(skaffoldConfigPath_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, skaffoldConfigPath_);
     }
-    if (!getManifestPathBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(manifestPath_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, manifestPath_);
     }
     if (uriCase_ == 4) {
@@ -376,10 +376,10 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getSkaffoldConfigPathBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(skaffoldConfigPath_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, skaffoldConfigPath_);
     }
-    if (!getManifestPathBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(manifestPath_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, manifestPath_);
     }
     if (uriCase_ == 4) {
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/UpdateDeliveryPipelineRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/UpdateDeliveryPipelineRequest.java
index a1d78c3..ae9a13b 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/UpdateDeliveryPipelineRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/UpdateDeliveryPipelineRequest.java
@@ -394,7 +394,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (deliveryPipeline_ != null) {
       output.writeMessage(2, getDeliveryPipeline());
     }
-    if (!getRequestIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(requestId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, requestId_);
     }
     if (allowMissing_ != false) {
@@ -418,7 +418,7 @@ public int getSerializedSize() {
     if (deliveryPipeline_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getDeliveryPipeline());
     }
-    if (!getRequestIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(requestId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, requestId_);
     }
     if (allowMissing_ != false) {
diff --git a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/UpdateTargetRequest.java b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/UpdateTargetRequest.java
index 7b1b40a..104ab9e 100644
--- a/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/UpdateTargetRequest.java
+++ b/proto-google-cloud-deploy-v1/src/main/java/com/google/cloud/deploy/v1/UpdateTargetRequest.java
@@ -388,7 +388,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (target_ != null) {
       output.writeMessage(2, getTarget());
     }
-    if (!getRequestIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(requestId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, requestId_);
     }
     if (allowMissing_ != false) {
@@ -412,7 +412,7 @@ public int getSerializedSize() {
     if (target_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getTarget());
     }
-    if (!getRequestIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(requestId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, requestId_);
     }
     if (allowMissing_ != false) {