diff --git a/google-cloud-orchestration-airflow/src/main/java/com/google/cloud/orchestration/airflow/service/v1/stub/EnvironmentsStubSettings.java b/google-cloud-orchestration-airflow/src/main/java/com/google/cloud/orchestration/airflow/service/v1/stub/EnvironmentsStubSettings.java
index 9134ccb3..95c8b494 100644
--- a/google-cloud-orchestration-airflow/src/main/java/com/google/cloud/orchestration/airflow/service/v1/stub/EnvironmentsStubSettings.java
+++ b/google-cloud-orchestration-airflow/src/main/java/com/google/cloud/orchestration/airflow/service/v1/stub/EnvironmentsStubSettings.java
@@ -253,7 +253,9 @@ public static List<String> getDefaultServiceScopes() {
 
   /** Returns a builder for the default credentials for this service. */
   public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
-    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+    return GoogleCredentialsProvider.newBuilder()
+        .setScopesToApply(DEFAULT_SERVICE_SCOPES)
+        .setUseJwtAccessWithScope(true);
   }
 
   /** Returns a builder for the default ChannelProvider for this service. */
diff --git a/google-cloud-orchestration-airflow/src/main/java/com/google/cloud/orchestration/airflow/service/v1/stub/ImageVersionsStubSettings.java b/google-cloud-orchestration-airflow/src/main/java/com/google/cloud/orchestration/airflow/service/v1/stub/ImageVersionsStubSettings.java
index 01d957d8..1790c5a7 100644
--- a/google-cloud-orchestration-airflow/src/main/java/com/google/cloud/orchestration/airflow/service/v1/stub/ImageVersionsStubSettings.java
+++ b/google-cloud-orchestration-airflow/src/main/java/com/google/cloud/orchestration/airflow/service/v1/stub/ImageVersionsStubSettings.java
@@ -195,7 +195,9 @@ public static List<String> getDefaultServiceScopes() {
 
   /** Returns a builder for the default credentials for this service. */
   public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
-    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+    return GoogleCredentialsProvider.newBuilder()
+        .setScopesToApply(DEFAULT_SERVICE_SCOPES)
+        .setUseJwtAccessWithScope(true);
   }
 
   /** Returns a builder for the default ChannelProvider for this service. */
diff --git a/google-cloud-orchestration-airflow/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/stub/EnvironmentsStubSettings.java b/google-cloud-orchestration-airflow/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/stub/EnvironmentsStubSettings.java
index 0df01e54..d0c17582 100644
--- a/google-cloud-orchestration-airflow/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/stub/EnvironmentsStubSettings.java
+++ b/google-cloud-orchestration-airflow/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/stub/EnvironmentsStubSettings.java
@@ -285,7 +285,9 @@ public static List<String> getDefaultServiceScopes() {
 
   /** Returns a builder for the default credentials for this service. */
   public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
-    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+    return GoogleCredentialsProvider.newBuilder()
+        .setScopesToApply(DEFAULT_SERVICE_SCOPES)
+        .setUseJwtAccessWithScope(true);
   }
 
   /** Returns a builder for the default ChannelProvider for this service. */
diff --git a/google-cloud-orchestration-airflow/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/stub/ImageVersionsStubSettings.java b/google-cloud-orchestration-airflow/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/stub/ImageVersionsStubSettings.java
index a08f3372..0902fa47 100644
--- a/google-cloud-orchestration-airflow/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/stub/ImageVersionsStubSettings.java
+++ b/google-cloud-orchestration-airflow/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/stub/ImageVersionsStubSettings.java
@@ -196,7 +196,9 @@ public static List<String> getDefaultServiceScopes() {
 
   /** Returns a builder for the default credentials for this service. */
   public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
-    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+    return GoogleCredentialsProvider.newBuilder()
+        .setScopesToApply(DEFAULT_SERVICE_SCOPES)
+        .setUseJwtAccessWithScope(true);
   }
 
   /** Returns a builder for the default ChannelProvider for this service. */
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/CheckUpgradeResponse.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/CheckUpgradeResponse.java
index eba0f38c..676c9d74 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/CheckUpgradeResponse.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/CheckUpgradeResponse.java
@@ -640,10 +640,10 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getBuildLogUriBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(buildLogUri_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, buildLogUri_);
     }
-    if (!getPypiConflictBuildLogExtractBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pypiConflictBuildLogExtract_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, pypiConflictBuildLogExtract_);
     }
     if (containsPypiModulesConflict_
@@ -652,7 +652,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
             .getNumber()) {
       output.writeEnum(4, containsPypiModulesConflict_);
     }
-    if (!getImageVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, imageVersion_);
     }
     com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
@@ -666,10 +666,10 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getBuildLogUriBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(buildLogUri_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, buildLogUri_);
     }
-    if (!getPypiConflictBuildLogExtractBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pypiConflictBuildLogExtract_)) {
       size +=
           com.google.protobuf.GeneratedMessageV3.computeStringSize(3, pypiConflictBuildLogExtract_);
     }
@@ -680,7 +680,7 @@ public int getSerializedSize() {
       size +=
           com.google.protobuf.CodedOutputStream.computeEnumSize(4, containsPypiModulesConflict_);
     }
-    if (!getImageVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, imageVersion_);
     }
     for (java.util.Map.Entry<java.lang.String, java.lang.String> entry :
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/CreateEnvironmentRequest.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/CreateEnvironmentRequest.java
index 63d6aac8..1ec352d5 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/CreateEnvironmentRequest.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/CreateEnvironmentRequest.java
@@ -244,7 +244,7 @@ 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 (environment_ != null) {
@@ -259,7 +259,7 @@ 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 (environment_ != null) {
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/DatabaseConfig.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/DatabaseConfig.java
index 515c9df5..1b2a737c 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/DatabaseConfig.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/DatabaseConfig.java
@@ -179,7 +179,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getMachineTypeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(machineType_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, machineType_);
     }
     unknownFields.writeTo(output);
@@ -191,7 +191,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getMachineTypeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(machineType_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, machineType_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/DeleteEnvironmentRequest.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/DeleteEnvironmentRequest.java
index 521e7a00..c700a7ed 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/DeleteEnvironmentRequest.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/DeleteEnvironmentRequest.java
@@ -177,7 +177,7 @@ 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);
@@ -189,7 +189,7 @@ 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-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/EncryptionConfig.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/EncryptionConfig.java
index 3cc1a225..b2fa8e8b 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/EncryptionConfig.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/EncryptionConfig.java
@@ -179,7 +179,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getKmsKeyNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(kmsKeyName_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, kmsKeyName_);
     }
     unknownFields.writeTo(output);
@@ -191,7 +191,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getKmsKeyNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(kmsKeyName_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, kmsKeyName_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/Environment.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/Environment.java
index de7544fa..76fa04ba 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/Environment.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/Environment.java
@@ -848,13 +848,13 @@ 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 (config_ != null) {
       output.writeMessage(2, getConfig());
     }
-    if (!getUuidBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uuid_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, uuid_);
     }
     if (state_
@@ -879,13 +879,13 @@ 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 (config_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getConfig());
     }
-    if (!getUuidBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uuid_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, uuid_);
     }
     if (state_
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/EnvironmentConfig.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/EnvironmentConfig.java
index e0489a7a..ae2cf5a7 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/EnvironmentConfig.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/EnvironmentConfig.java
@@ -839,10 +839,10 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getGkeClusterBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(gkeCluster_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, gkeCluster_);
     }
-    if (!getDagGcsPrefixBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(dagGcsPrefix_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, dagGcsPrefix_);
     }
     if (nodeCount_ != 0) {
@@ -854,7 +854,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (nodeConfig_ != null) {
       output.writeMessage(5, getNodeConfig());
     }
-    if (!getAirflowUriBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(airflowUri_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, airflowUri_);
     }
     if (privateEnvironmentConfig_ != null) {
@@ -881,10 +881,10 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getGkeClusterBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(gkeCluster_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, gkeCluster_);
     }
-    if (!getDagGcsPrefixBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(dagGcsPrefix_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, dagGcsPrefix_);
     }
     if (nodeCount_ != 0) {
@@ -896,7 +896,7 @@ public int getSerializedSize() {
     if (nodeConfig_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, getNodeConfig());
     }
-    if (!getAirflowUriBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(airflowUri_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, airflowUri_);
     }
     if (privateEnvironmentConfig_ != null) {
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/GetEnvironmentRequest.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/GetEnvironmentRequest.java
index 54ba8b80..a4104da3 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/GetEnvironmentRequest.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/GetEnvironmentRequest.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 (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
     unknownFields.writeTo(output);
@@ -188,7 +188,7 @@ 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-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ImageVersion.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ImageVersion.java
index 4855262d..7da55202 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ImageVersion.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ImageVersion.java
@@ -383,7 +383,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getImageVersionIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageVersionId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, imageVersionId_);
     }
     if (isDefault_ != false) {
@@ -411,7 +411,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getImageVersionIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageVersionId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, imageVersionId_);
     }
     if (isDefault_ != false) {
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ListEnvironmentsRequest.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ListEnvironmentsRequest.java
index cafd6225..b3f000d5 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ListEnvironmentsRequest.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ListEnvironmentsRequest.java
@@ -257,13 +257,13 @@ 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_);
     }
     unknownFields.writeTo(output);
@@ -275,13 +275,13 @@ 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_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ListEnvironmentsResponse.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ListEnvironmentsResponse.java
index 4955f2fd..76859a5b 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ListEnvironmentsResponse.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ListEnvironmentsResponse.java
@@ -275,7 +275,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < environments_.size(); i++) {
       output.writeMessage(1, environments_.get(i));
     }
-    if (!getNextPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
     }
     unknownFields.writeTo(output);
@@ -290,7 +290,7 @@ public int getSerializedSize() {
     for (int i = 0; i < environments_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, environments_.get(i));
     }
-    if (!getNextPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ListImageVersionsRequest.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ListImageVersionsRequest.java
index 630e0b36..f8c6d310 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ListImageVersionsRequest.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ListImageVersionsRequest.java
@@ -280,13 +280,13 @@ 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 (includePastReleases_ != false) {
@@ -301,13 +301,13 @@ 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 (includePastReleases_ != false) {
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ListImageVersionsResponse.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ListImageVersionsResponse.java
index 34f6f485..4d19a24c 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ListImageVersionsResponse.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/ListImageVersionsResponse.java
@@ -276,7 +276,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < imageVersions_.size(); i++) {
       output.writeMessage(1, imageVersions_.get(i));
     }
-    if (!getNextPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
     }
     unknownFields.writeTo(output);
@@ -291,7 +291,7 @@ public int getSerializedSize() {
     for (int i = 0; i < imageVersions_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, imageVersions_.get(i));
     }
-    if (!getNextPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/NodeConfig.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/NodeConfig.java
index 9e257f8e..b62792ec 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/NodeConfig.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/NodeConfig.java
@@ -766,16 +766,16 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getLocationBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(location_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, location_);
     }
-    if (!getMachineTypeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(machineType_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, machineType_);
     }
-    if (!getNetworkBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(network_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, network_);
     }
-    if (!getSubnetworkBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(subnetwork_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, subnetwork_);
     }
     if (diskSizeGb_ != 0) {
@@ -784,7 +784,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < oauthScopes_.size(); i++) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, oauthScopes_.getRaw(i));
     }
-    if (!getServiceAccountBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(serviceAccount_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 7, serviceAccount_);
     }
     for (int i = 0; i < tags_.size(); i++) {
@@ -802,16 +802,16 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getLocationBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(location_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, location_);
     }
-    if (!getMachineTypeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(machineType_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, machineType_);
     }
-    if (!getNetworkBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(network_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, network_);
     }
-    if (!getSubnetworkBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(subnetwork_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, subnetwork_);
     }
     if (diskSizeGb_ != 0) {
@@ -825,7 +825,7 @@ public int getSerializedSize() {
       size += dataSize;
       size += 1 * getOauthScopesList().size();
     }
-    if (!getServiceAccountBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(serviceAccount_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, serviceAccount_);
     }
     {
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/OperationMetadata.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/OperationMetadata.java
index 58fe565e..83ba6458 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/OperationMetadata.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/OperationMetadata.java
@@ -883,10 +883,10 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
             .getNumber()) {
       output.writeEnum(2, operationType_);
     }
-    if (!getResourceBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resource_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, resource_);
     }
-    if (!getResourceUuidBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resourceUuid_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, resourceUuid_);
     }
     if (createTime_ != null) {
@@ -915,10 +915,10 @@ public int getSerializedSize() {
             .getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, operationType_);
     }
-    if (!getResourceBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resource_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, resource_);
     }
-    if (!getResourceUuidBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resourceUuid_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, resourceUuid_);
     }
     if (createTime_ != null) {
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/PrivateClusterConfig.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/PrivateClusterConfig.java
index 0f8bf9d7..3cf06c96 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/PrivateClusterConfig.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/PrivateClusterConfig.java
@@ -271,10 +271,10 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enablePrivateEndpoint_ != false) {
       output.writeBool(1, enablePrivateEndpoint_);
     }
-    if (!getMasterIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(masterIpv4CidrBlock_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, masterIpv4CidrBlock_);
     }
-    if (!getMasterIpv4ReservedRangeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(masterIpv4ReservedRange_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, masterIpv4ReservedRange_);
     }
     unknownFields.writeTo(output);
@@ -289,10 +289,10 @@ public int getSerializedSize() {
     if (enablePrivateEndpoint_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enablePrivateEndpoint_);
     }
-    if (!getMasterIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(masterIpv4CidrBlock_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, masterIpv4CidrBlock_);
     }
-    if (!getMasterIpv4ReservedRangeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(masterIpv4ReservedRange_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, masterIpv4ReservedRange_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/PrivateEnvironmentConfig.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/PrivateEnvironmentConfig.java
index 03758146..961004dc 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/PrivateEnvironmentConfig.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/PrivateEnvironmentConfig.java
@@ -409,13 +409,13 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (privateClusterConfig_ != null) {
       output.writeMessage(2, getPrivateClusterConfig());
     }
-    if (!getWebServerIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(webServerIpv4CidrBlock_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, webServerIpv4CidrBlock_);
     }
-    if (!getCloudSqlIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cloudSqlIpv4CidrBlock_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, cloudSqlIpv4CidrBlock_);
     }
-    if (!getWebServerIpv4ReservedRangeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(webServerIpv4ReservedRange_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, webServerIpv4ReservedRange_);
     }
     unknownFields.writeTo(output);
@@ -434,13 +434,13 @@ public int getSerializedSize() {
       size +=
           com.google.protobuf.CodedOutputStream.computeMessageSize(2, getPrivateClusterConfig());
     }
-    if (!getWebServerIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(webServerIpv4CidrBlock_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, webServerIpv4CidrBlock_);
     }
-    if (!getCloudSqlIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cloudSqlIpv4CidrBlock_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, cloudSqlIpv4CidrBlock_);
     }
-    if (!getWebServerIpv4ReservedRangeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(webServerIpv4ReservedRange_)) {
       size +=
           com.google.protobuf.GeneratedMessageV3.computeStringSize(5, webServerIpv4ReservedRange_);
     }
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/SoftwareConfig.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/SoftwareConfig.java
index ef439e15..9567d780 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/SoftwareConfig.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/SoftwareConfig.java
@@ -786,7 +786,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getImageVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, imageVersion_);
     }
     com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
@@ -798,7 +798,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
         output, internalGetPypiPackages(), PypiPackagesDefaultEntryHolder.defaultEntry, 3);
     com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
         output, internalGetEnvVariables(), EnvVariablesDefaultEntryHolder.defaultEntry, 4);
-    if (!getPythonVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pythonVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, pythonVersion_);
     }
     unknownFields.writeTo(output);
@@ -810,7 +810,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getImageVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, imageVersion_);
     }
     for (java.util.Map.Entry<java.lang.String, java.lang.String> entry :
@@ -843,7 +843,7 @@ public int getSerializedSize() {
               .build();
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, envVariables__);
     }
-    if (!getPythonVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pythonVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, pythonVersion_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/UpdateEnvironmentRequest.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/UpdateEnvironmentRequest.java
index d87eef1b..c0880a45 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/UpdateEnvironmentRequest.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/UpdateEnvironmentRequest.java
@@ -620,7 +620,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (environment_ != null) {
       output.writeMessage(1, getEnvironment());
     }
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, name_);
     }
     if (updateMask_ != null) {
@@ -638,7 +638,7 @@ public int getSerializedSize() {
     if (environment_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getEnvironment());
     }
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, name_);
     }
     if (updateMask_ != null) {
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/WebServerConfig.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/WebServerConfig.java
index 973888fe..d62d6350 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/WebServerConfig.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/WebServerConfig.java
@@ -184,7 +184,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getMachineTypeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(machineType_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, machineType_);
     }
     unknownFields.writeTo(output);
@@ -196,7 +196,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getMachineTypeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(machineType_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, machineType_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/WebServerNetworkAccessControl.java b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/WebServerNetworkAccessControl.java
index c9453c58..7b57b101 100644
--- a/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/WebServerNetworkAccessControl.java
+++ b/proto-google-cloud-orchestration-airflow-v1/src/main/java/com/google/cloud/orchestration/airflow/service/v1/WebServerNetworkAccessControl.java
@@ -420,10 +420,10 @@ public final boolean isInitialized() {
 
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-      if (!getValueBytes().isEmpty()) {
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(value_)) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, value_);
       }
-      if (!getDescriptionBytes().isEmpty()) {
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 2, description_);
       }
       unknownFields.writeTo(output);
@@ -435,10 +435,10 @@ public int getSerializedSize() {
       if (size != -1) return size;
 
       size = 0;
-      if (!getValueBytes().isEmpty()) {
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(value_)) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, value_);
       }
-      if (!getDescriptionBytes().isEmpty()) {
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, description_);
       }
       size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/CheckUpgradeRequest.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/CheckUpgradeRequest.java
index f944b7c5..42e432fe 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/CheckUpgradeRequest.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/CheckUpgradeRequest.java
@@ -268,10 +268,10 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getEnvironmentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(environment_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, environment_);
     }
-    if (!getImageVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, imageVersion_);
     }
     unknownFields.writeTo(output);
@@ -283,10 +283,10 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getEnvironmentBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(environment_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, environment_);
     }
-    if (!getImageVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, imageVersion_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/CheckUpgradeResponse.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/CheckUpgradeResponse.java
index 6687403a..3127a5fe 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/CheckUpgradeResponse.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/CheckUpgradeResponse.java
@@ -643,10 +643,10 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getBuildLogUriBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(buildLogUri_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, buildLogUri_);
     }
-    if (!getPypiConflictBuildLogExtractBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pypiConflictBuildLogExtract_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, pypiConflictBuildLogExtract_);
     }
     if (containsPypiModulesConflict_
@@ -655,7 +655,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
             .getNumber()) {
       output.writeEnum(4, containsPypiModulesConflict_);
     }
-    if (!getImageVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, imageVersion_);
     }
     com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
@@ -669,10 +669,10 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getBuildLogUriBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(buildLogUri_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, buildLogUri_);
     }
-    if (!getPypiConflictBuildLogExtractBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pypiConflictBuildLogExtract_)) {
       size +=
           com.google.protobuf.GeneratedMessageV3.computeStringSize(3, pypiConflictBuildLogExtract_);
     }
@@ -683,7 +683,7 @@ public int getSerializedSize() {
       size +=
           com.google.protobuf.CodedOutputStream.computeEnumSize(4, containsPypiModulesConflict_);
     }
-    if (!getImageVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, imageVersion_);
     }
     for (java.util.Map.Entry<java.lang.String, java.lang.String> entry :
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/CreateEnvironmentRequest.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/CreateEnvironmentRequest.java
index fd59c191..71ed7f32 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/CreateEnvironmentRequest.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/CreateEnvironmentRequest.java
@@ -244,7 +244,7 @@ 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 (environment_ != null) {
@@ -259,7 +259,7 @@ 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 (environment_ != null) {
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/DatabaseConfig.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/DatabaseConfig.java
index 38a96ee7..1dbc42bf 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/DatabaseConfig.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/DatabaseConfig.java
@@ -179,7 +179,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getMachineTypeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(machineType_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, machineType_);
     }
     unknownFields.writeTo(output);
@@ -191,7 +191,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getMachineTypeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(machineType_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, machineType_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/DeleteEnvironmentRequest.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/DeleteEnvironmentRequest.java
index 5a548c5d..104a24e3 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/DeleteEnvironmentRequest.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/DeleteEnvironmentRequest.java
@@ -177,7 +177,7 @@ 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);
@@ -189,7 +189,7 @@ 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-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/EncryptionConfig.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/EncryptionConfig.java
index 231330dd..e9469ecd 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/EncryptionConfig.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/EncryptionConfig.java
@@ -179,7 +179,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getKmsKeyNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(kmsKeyName_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, kmsKeyName_);
     }
     unknownFields.writeTo(output);
@@ -191,7 +191,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getKmsKeyNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(kmsKeyName_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, kmsKeyName_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/Environment.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/Environment.java
index 49455b45..5f0a95c5 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/Environment.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/Environment.java
@@ -856,13 +856,13 @@ 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 (config_ != null) {
       output.writeMessage(2, getConfig());
     }
-    if (!getUuidBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uuid_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, uuid_);
     }
     if (state_
@@ -888,13 +888,13 @@ 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 (config_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getConfig());
     }
-    if (!getUuidBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uuid_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, uuid_);
     }
     if (state_
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/EnvironmentConfig.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/EnvironmentConfig.java
index 74b2f256..9ab16dbf 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/EnvironmentConfig.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/EnvironmentConfig.java
@@ -1290,10 +1290,10 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getGkeClusterBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(gkeCluster_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, gkeCluster_);
     }
-    if (!getDagGcsPrefixBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(dagGcsPrefix_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, dagGcsPrefix_);
     }
     if (nodeCount_ != 0) {
@@ -1305,7 +1305,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (nodeConfig_ != null) {
       output.writeMessage(5, getNodeConfig());
     }
-    if (!getAirflowUriBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(airflowUri_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, airflowUri_);
     }
     if (privateEnvironmentConfig_ != null) {
@@ -1344,10 +1344,10 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getGkeClusterBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(gkeCluster_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, gkeCluster_);
     }
-    if (!getDagGcsPrefixBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(dagGcsPrefix_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, dagGcsPrefix_);
     }
     if (nodeCount_ != 0) {
@@ -1359,7 +1359,7 @@ public int getSerializedSize() {
     if (nodeConfig_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, getNodeConfig());
     }
-    if (!getAirflowUriBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(airflowUri_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, airflowUri_);
     }
     if (privateEnvironmentConfig_ != null) {
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/GetEnvironmentRequest.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/GetEnvironmentRequest.java
index 2ee70e4e..1762ac63 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/GetEnvironmentRequest.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/GetEnvironmentRequest.java
@@ -177,7 +177,7 @@ 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);
@@ -189,7 +189,7 @@ 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-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/IPAllocationPolicy.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/IPAllocationPolicy.java
index 20b92e03..ae815689 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/IPAllocationPolicy.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/IPAllocationPolicy.java
@@ -436,16 +436,16 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (useIpAliases_ != false) {
       output.writeBool(1, useIpAliases_);
     }
-    if (!getClusterSecondaryRangeNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clusterSecondaryRangeName_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, clusterSecondaryRangeName_);
     }
-    if (!getServicesSecondaryRangeNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(servicesSecondaryRangeName_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, servicesSecondaryRangeName_);
     }
-    if (!getClusterIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clusterIpv4CidrBlock_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, clusterIpv4CidrBlock_);
     }
-    if (!getServicesIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(servicesIpv4CidrBlock_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, servicesIpv4CidrBlock_);
     }
     unknownFields.writeTo(output);
@@ -460,18 +460,18 @@ public int getSerializedSize() {
     if (useIpAliases_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, useIpAliases_);
     }
-    if (!getClusterSecondaryRangeNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clusterSecondaryRangeName_)) {
       size +=
           com.google.protobuf.GeneratedMessageV3.computeStringSize(2, clusterSecondaryRangeName_);
     }
-    if (!getServicesSecondaryRangeNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(servicesSecondaryRangeName_)) {
       size +=
           com.google.protobuf.GeneratedMessageV3.computeStringSize(3, servicesSecondaryRangeName_);
     }
-    if (!getClusterIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clusterIpv4CidrBlock_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, clusterIpv4CidrBlock_);
     }
-    if (!getServicesIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(servicesIpv4CidrBlock_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, servicesIpv4CidrBlock_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ImageVersion.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ImageVersion.java
index a0dc7b5f..11db2484 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ImageVersion.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ImageVersion.java
@@ -383,7 +383,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getImageVersionIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageVersionId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, imageVersionId_);
     }
     if (isDefault_ != false) {
@@ -411,7 +411,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getImageVersionIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageVersionId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, imageVersionId_);
     }
     if (isDefault_ != false) {
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ListEnvironmentsRequest.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ListEnvironmentsRequest.java
index ad93bd23..637d3708 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ListEnvironmentsRequest.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ListEnvironmentsRequest.java
@@ -257,13 +257,13 @@ 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_);
     }
     unknownFields.writeTo(output);
@@ -275,13 +275,13 @@ 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_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ListEnvironmentsResponse.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ListEnvironmentsResponse.java
index 6ee68ed8..1460fd5d 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ListEnvironmentsResponse.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ListEnvironmentsResponse.java
@@ -281,7 +281,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < environments_.size(); i++) {
       output.writeMessage(1, environments_.get(i));
     }
-    if (!getNextPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
     }
     unknownFields.writeTo(output);
@@ -296,7 +296,7 @@ public int getSerializedSize() {
     for (int i = 0; i < environments_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, environments_.get(i));
     }
-    if (!getNextPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ListImageVersionsRequest.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ListImageVersionsRequest.java
index e646afee..d9336d54 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ListImageVersionsRequest.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ListImageVersionsRequest.java
@@ -280,13 +280,13 @@ 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 (includePastReleases_ != false) {
@@ -301,13 +301,13 @@ 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 (includePastReleases_ != false) {
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ListImageVersionsResponse.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ListImageVersionsResponse.java
index 7b485db2..c314c7bb 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ListImageVersionsResponse.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/ListImageVersionsResponse.java
@@ -282,7 +282,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < imageVersions_.size(); i++) {
       output.writeMessage(1, imageVersions_.get(i));
     }
-    if (!getNextPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
     }
     unknownFields.writeTo(output);
@@ -297,7 +297,7 @@ public int getSerializedSize() {
     for (int i = 0; i < imageVersions_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, imageVersions_.get(i));
     }
-    if (!getNextPageTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/MaintenanceWindow.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/MaintenanceWindow.java
index d69978e6..c2b2469b 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/MaintenanceWindow.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/MaintenanceWindow.java
@@ -325,7 +325,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (endTime_ != null) {
       output.writeMessage(2, getEndTime());
     }
-    if (!getRecurrenceBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(recurrence_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, recurrence_);
     }
     unknownFields.writeTo(output);
@@ -343,7 +343,7 @@ public int getSerializedSize() {
     if (endTime_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getEndTime());
     }
-    if (!getRecurrenceBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(recurrence_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, recurrence_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/NodeConfig.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/NodeConfig.java
index d0c7311a..1cc7913d 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/NodeConfig.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/NodeConfig.java
@@ -801,16 +801,16 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getLocationBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(location_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, location_);
     }
-    if (!getMachineTypeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(machineType_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, machineType_);
     }
-    if (!getNetworkBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(network_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, network_);
     }
-    if (!getSubnetworkBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(subnetwork_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, subnetwork_);
     }
     if (diskSizeGb_ != 0) {
@@ -819,7 +819,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < oauthScopes_.size(); i++) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, oauthScopes_.getRaw(i));
     }
-    if (!getServiceAccountBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(serviceAccount_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 7, serviceAccount_);
     }
     for (int i = 0; i < tags_.size(); i++) {
@@ -840,16 +840,16 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getLocationBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(location_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, location_);
     }
-    if (!getMachineTypeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(machineType_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, machineType_);
     }
-    if (!getNetworkBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(network_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, network_);
     }
-    if (!getSubnetworkBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(subnetwork_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, subnetwork_);
     }
     if (diskSizeGb_ != 0) {
@@ -863,7 +863,7 @@ public int getSerializedSize() {
       size += dataSize;
       size += 1 * getOauthScopesList().size();
     }
-    if (!getServiceAccountBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(serviceAccount_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, serviceAccount_);
     }
     {
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/OperationMetadata.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/OperationMetadata.java
index e5f8028b..108ad7f0 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/OperationMetadata.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/OperationMetadata.java
@@ -881,10 +881,10 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
             .getNumber()) {
       output.writeEnum(2, operationType_);
     }
-    if (!getResourceBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resource_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, resource_);
     }
-    if (!getResourceUuidBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resourceUuid_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, resourceUuid_);
     }
     if (createTime_ != null) {
@@ -914,10 +914,10 @@ public int getSerializedSize() {
             .getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, operationType_);
     }
-    if (!getResourceBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resource_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, resource_);
     }
-    if (!getResourceUuidBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resourceUuid_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, resourceUuid_);
     }
     if (createTime_ != null) {
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/PrivateClusterConfig.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/PrivateClusterConfig.java
index b22808f6..c5538d67 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/PrivateClusterConfig.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/PrivateClusterConfig.java
@@ -272,10 +272,10 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enablePrivateEndpoint_ != false) {
       output.writeBool(1, enablePrivateEndpoint_);
     }
-    if (!getMasterIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(masterIpv4CidrBlock_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, masterIpv4CidrBlock_);
     }
-    if (!getMasterIpv4ReservedRangeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(masterIpv4ReservedRange_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, masterIpv4ReservedRange_);
     }
     unknownFields.writeTo(output);
@@ -290,10 +290,10 @@ public int getSerializedSize() {
     if (enablePrivateEndpoint_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enablePrivateEndpoint_);
     }
-    if (!getMasterIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(masterIpv4CidrBlock_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, masterIpv4CidrBlock_);
     }
-    if (!getMasterIpv4ReservedRangeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(masterIpv4ReservedRange_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, masterIpv4ReservedRange_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/PrivateEnvironmentConfig.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/PrivateEnvironmentConfig.java
index f8dbf2be..c4ad8c7f 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/PrivateEnvironmentConfig.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/PrivateEnvironmentConfig.java
@@ -545,20 +545,21 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (privateClusterConfig_ != null) {
       output.writeMessage(2, getPrivateClusterConfig());
     }
-    if (!getWebServerIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(webServerIpv4CidrBlock_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, webServerIpv4CidrBlock_);
     }
-    if (!getCloudSqlIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cloudSqlIpv4CidrBlock_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, cloudSqlIpv4CidrBlock_);
     }
-    if (!getWebServerIpv4ReservedRangeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(webServerIpv4ReservedRange_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, webServerIpv4ReservedRange_);
     }
-    if (!getCloudComposerNetworkIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cloudComposerNetworkIpv4CidrBlock_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(
           output, 7, cloudComposerNetworkIpv4CidrBlock_);
     }
-    if (!getCloudComposerNetworkIpv4ReservedRangeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(
+        cloudComposerNetworkIpv4ReservedRange_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(
           output, 8, cloudComposerNetworkIpv4ReservedRange_);
     }
@@ -578,22 +579,23 @@ public int getSerializedSize() {
       size +=
           com.google.protobuf.CodedOutputStream.computeMessageSize(2, getPrivateClusterConfig());
     }
-    if (!getWebServerIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(webServerIpv4CidrBlock_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, webServerIpv4CidrBlock_);
     }
-    if (!getCloudSqlIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cloudSqlIpv4CidrBlock_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, cloudSqlIpv4CidrBlock_);
     }
-    if (!getWebServerIpv4ReservedRangeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(webServerIpv4ReservedRange_)) {
       size +=
           com.google.protobuf.GeneratedMessageV3.computeStringSize(5, webServerIpv4ReservedRange_);
     }
-    if (!getCloudComposerNetworkIpv4CidrBlockBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cloudComposerNetworkIpv4CidrBlock_)) {
       size +=
           com.google.protobuf.GeneratedMessageV3.computeStringSize(
               7, cloudComposerNetworkIpv4CidrBlock_);
     }
-    if (!getCloudComposerNetworkIpv4ReservedRangeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(
+        cloudComposerNetworkIpv4ReservedRange_)) {
       size +=
           com.google.protobuf.GeneratedMessageV3.computeStringSize(
               8, cloudComposerNetworkIpv4ReservedRange_);
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/RestartWebServerRequest.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/RestartWebServerRequest.java
index 7eb03ce8..c28ce7bc 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/RestartWebServerRequest.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/RestartWebServerRequest.java
@@ -179,7 +179,7 @@ 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);
@@ -191,7 +191,7 @@ 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-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/SoftwareConfig.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/SoftwareConfig.java
index 9a1b5747..554d8da3 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/SoftwareConfig.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/SoftwareConfig.java
@@ -802,7 +802,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getImageVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, imageVersion_);
     }
     com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
@@ -814,7 +814,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
         output, internalGetPypiPackages(), PypiPackagesDefaultEntryHolder.defaultEntry, 3);
     com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
         output, internalGetEnvVariables(), EnvVariablesDefaultEntryHolder.defaultEntry, 4);
-    if (!getPythonVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pythonVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, pythonVersion_);
     }
     unknownFields.writeTo(output);
@@ -826,7 +826,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getImageVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, imageVersion_);
     }
     for (java.util.Map.Entry<java.lang.String, java.lang.String> entry :
@@ -859,7 +859,7 @@ public int getSerializedSize() {
               .build();
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, envVariables__);
     }
-    if (!getPythonVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pythonVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, pythonVersion_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/UpdateEnvironmentRequest.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/UpdateEnvironmentRequest.java
index c76c239a..16437733 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/UpdateEnvironmentRequest.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/UpdateEnvironmentRequest.java
@@ -671,7 +671,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (environment_ != null) {
       output.writeMessage(1, getEnvironment());
     }
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, name_);
     }
     if (updateMask_ != null) {
@@ -689,7 +689,7 @@ public int getSerializedSize() {
     if (environment_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getEnvironment());
     }
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, name_);
     }
     if (updateMask_ != null) {
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/WebServerConfig.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/WebServerConfig.java
index 70386ec9..9f508f21 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/WebServerConfig.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/WebServerConfig.java
@@ -184,7 +184,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getMachineTypeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(machineType_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, machineType_);
     }
     unknownFields.writeTo(output);
@@ -196,7 +196,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getMachineTypeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(machineType_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, machineType_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/WebServerNetworkAccessControl.java b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/WebServerNetworkAccessControl.java
index ff10e33c..5d4ed20f 100644
--- a/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/WebServerNetworkAccessControl.java
+++ b/proto-google-cloud-orchestration-airflow-v1beta1/src/main/java/com/google/cloud/orchestration/airflow/service/v1beta1/WebServerNetworkAccessControl.java
@@ -422,10 +422,10 @@ public final boolean isInitialized() {
 
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-      if (!getValueBytes().isEmpty()) {
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(value_)) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, value_);
       }
-      if (!getDescriptionBytes().isEmpty()) {
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 2, description_);
       }
       unknownFields.writeTo(output);
@@ -437,10 +437,10 @@ public int getSerializedSize() {
       if (size != -1) return size;
 
       size = 0;
-      if (!getValueBytes().isEmpty()) {
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(value_)) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, value_);
       }
-      if (!getDescriptionBytes().isEmpty()) {
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, description_);
       }
       size += unknownFields.getSerializedSize();