diff --git a/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/CreateSubmissionRequest.java b/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/CreateSubmissionRequest.java
index d26e4833..0bdccc38 100644
--- a/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/CreateSubmissionRequest.java
+++ b/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/CreateSubmissionRequest.java
@@ -249,7 +249,7 @@ 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 (submission_ != null) {
@@ -264,7 +264,7 @@ 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 (submission_ != null) {
diff --git a/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/SearchUrisRequest.java b/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/SearchUrisRequest.java
index 1fb3ad90..3ea862d7 100644
--- a/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/SearchUrisRequest.java
+++ b/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/SearchUrisRequest.java
@@ -310,7 +310,7 @@ public final boolean isInitialized() {
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
     getSerializedSize();
-    if (!getUriBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uri_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, uri_);
     }
     if (getThreatTypesList().size() > 0) {
@@ -329,7 +329,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getUriBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uri_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, uri_);
     }
     {
diff --git a/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/Submission.java b/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/Submission.java
index 1e64480c..33fd61aa 100644
--- a/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/Submission.java
+++ b/proto-google-cloud-webrisk-v1/src/main/java/com/google/webrisk/v1/Submission.java
@@ -173,7 +173,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getUriBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uri_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, uri_);
     }
     unknownFields.writeTo(output);
@@ -185,7 +185,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getUriBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uri_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, uri_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-webrisk-v1beta1/src/main/java/com/google/webrisk/v1beta1/SearchUrisRequest.java b/proto-google-cloud-webrisk-v1beta1/src/main/java/com/google/webrisk/v1beta1/SearchUrisRequest.java
index cce50243..6cc8b16f 100644
--- a/proto-google-cloud-webrisk-v1beta1/src/main/java/com/google/webrisk/v1beta1/SearchUrisRequest.java
+++ b/proto-google-cloud-webrisk-v1beta1/src/main/java/com/google/webrisk/v1beta1/SearchUrisRequest.java
@@ -311,7 +311,7 @@ public final boolean isInitialized() {
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
     getSerializedSize();
-    if (!getUriBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uri_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, uri_);
     }
     if (getThreatTypesList().size() > 0) {
@@ -330,7 +330,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getUriBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uri_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, uri_);
     }
     {