diff --git a/README.md b/README.md
index 74a5a18b..85916e85 100644
--- a/README.md
+++ b/README.md
@@ -19,20 +19,20 @@ If you are using Maven, add this to your pom.xml file:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-debugger-client</artifactId>
-  <version>1.1.2</version>
+  <version>1.1.3</version>
 </dependency>
 ```
 
 If you are using Gradle without BOM, add this to your dependencies
 
 ```Groovy
-implementation 'com.google.cloud:google-cloud-debugger-client:1.1.2'
+implementation 'com.google.cloud:google-cloud-debugger-client:1.1.3'
 ```
 
 If you are using SBT, add this to your dependencies
 
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-debugger-client" % "1.1.2"
+libraryDependencies += "com.google.cloud" % "google-cloud-debugger-client" % "1.1.3"
 ```
 
 ## Authentication
diff --git a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/Breakpoint.java b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/Breakpoint.java
index cd97c228..c5f7b43c 100644
--- a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/Breakpoint.java
+++ b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/Breakpoint.java
@@ -1618,13 +1618,13 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(id_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, id_);
     }
     if (location_ != null) {
       output.writeMessage(2, getLocation());
     }
-    if (!getConditionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(condition_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, condition_);
     }
     for (int i = 0; i < expressions_.size(); i++) {
@@ -1654,13 +1654,13 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (action_ != com.google.devtools.clouddebugger.v2.Breakpoint.Action.CAPTURE.getNumber()) {
       output.writeEnum(13, action_);
     }
-    if (!getLogMessageFormatBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(logMessageFormat_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 14, logMessageFormat_);
     }
     if (logLevel_ != com.google.devtools.clouddebugger.v2.Breakpoint.LogLevel.INFO.getNumber()) {
       output.writeEnum(15, logLevel_);
     }
-    if (!getUserEmailBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(userEmail_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 16, userEmail_);
     }
     com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
@@ -1674,13 +1674,13 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(id_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, id_);
     }
     if (location_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getLocation());
     }
-    if (!getConditionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(condition_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, condition_);
     }
     {
@@ -1716,13 +1716,13 @@ public int getSerializedSize() {
     if (action_ != com.google.devtools.clouddebugger.v2.Breakpoint.Action.CAPTURE.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(13, action_);
     }
-    if (!getLogMessageFormatBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(logMessageFormat_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(14, logMessageFormat_);
     }
     if (logLevel_ != com.google.devtools.clouddebugger.v2.Breakpoint.LogLevel.INFO.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(15, logLevel_);
     }
-    if (!getUserEmailBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(userEmail_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(16, userEmail_);
     }
     for (java.util.Map.Entry<java.lang.String, java.lang.String> entry :
diff --git a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/Debuggee.java b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/Debuggee.java
index ef71727e..1c6943f5 100644
--- a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/Debuggee.java
+++ b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/Debuggee.java
@@ -871,22 +871,22 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(id_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, id_);
     }
-    if (!getProjectBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(project_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, project_);
     }
-    if (!getUniquifierBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uniquifier_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, uniquifier_);
     }
-    if (!getDescriptionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, description_);
     }
     if (isInactive_ != false) {
       output.writeBool(5, isInactive_);
     }
-    if (!getAgentVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(agentVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, agentVersion_);
     }
     if (isDisabled_ != false) {
@@ -912,22 +912,22 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(id_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, id_);
     }
-    if (!getProjectBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(project_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, project_);
     }
-    if (!getUniquifierBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(uniquifier_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, uniquifier_);
     }
-    if (!getDescriptionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, description_);
     }
     if (isInactive_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(5, isInactive_);
     }
-    if (!getAgentVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(agentVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, agentVersion_);
     }
     if (isDisabled_ != false) {
diff --git a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/DeleteBreakpointRequest.java b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/DeleteBreakpointRequest.java
index 50b0470f..9169295c 100644
--- a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/DeleteBreakpointRequest.java
+++ b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/DeleteBreakpointRequest.java
@@ -290,13 +290,13 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getDebuggeeIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(debuggeeId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, debuggeeId_);
     }
-    if (!getBreakpointIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(breakpointId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, breakpointId_);
     }
-    if (!getClientVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clientVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, clientVersion_);
     }
     unknownFields.writeTo(output);
@@ -308,13 +308,13 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getDebuggeeIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(debuggeeId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, debuggeeId_);
     }
-    if (!getBreakpointIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(breakpointId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, breakpointId_);
     }
-    if (!getClientVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clientVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, clientVersion_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/FormatMessage.java b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/FormatMessage.java
index a8ff58a1..af1e55d9 100644
--- a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/FormatMessage.java
+++ b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/FormatMessage.java
@@ -262,7 +262,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getFormatBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(format_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, format_);
     }
     for (int i = 0; i < parameters_.size(); i++) {
@@ -277,7 +277,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getFormatBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(format_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, format_);
     }
     {
diff --git a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/GetBreakpointRequest.java b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/GetBreakpointRequest.java
index ebeb214d..46b0808e 100644
--- a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/GetBreakpointRequest.java
+++ b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/GetBreakpointRequest.java
@@ -290,13 +290,13 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getDebuggeeIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(debuggeeId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, debuggeeId_);
     }
-    if (!getBreakpointIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(breakpointId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, breakpointId_);
     }
-    if (!getClientVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clientVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, clientVersion_);
     }
     unknownFields.writeTo(output);
@@ -308,13 +308,13 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getDebuggeeIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(debuggeeId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, debuggeeId_);
     }
-    if (!getBreakpointIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(breakpointId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, breakpointId_);
     }
-    if (!getClientVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clientVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, clientVersion_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListActiveBreakpointsRequest.java b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListActiveBreakpointsRequest.java
index 42d94c38..fb88ced8 100644
--- a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListActiveBreakpointsRequest.java
+++ b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListActiveBreakpointsRequest.java
@@ -264,10 +264,10 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getDebuggeeIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(debuggeeId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, debuggeeId_);
     }
-    if (!getWaitTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(waitToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, waitToken_);
     }
     if (successOnTimeout_ != false) {
@@ -282,10 +282,10 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getDebuggeeIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(debuggeeId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, debuggeeId_);
     }
-    if (!getWaitTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(waitToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, waitToken_);
     }
     if (successOnTimeout_ != false) {
diff --git a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListActiveBreakpointsResponse.java b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListActiveBreakpointsResponse.java
index d81474be..dd1d247f 100644
--- a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListActiveBreakpointsResponse.java
+++ b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListActiveBreakpointsResponse.java
@@ -296,7 +296,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < breakpoints_.size(); i++) {
       output.writeMessage(1, breakpoints_.get(i));
     }
-    if (!getNextWaitTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextWaitToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextWaitToken_);
     }
     if (waitExpired_ != false) {
@@ -314,7 +314,7 @@ public int getSerializedSize() {
     for (int i = 0; i < breakpoints_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, breakpoints_.get(i));
     }
-    if (!getNextWaitTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextWaitToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextWaitToken_);
     }
     if (waitExpired_ != false) {
diff --git a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListBreakpointsRequest.java b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListBreakpointsRequest.java
index 2c908c09..8917a7d3 100644
--- a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListBreakpointsRequest.java
+++ b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListBreakpointsRequest.java
@@ -1113,7 +1113,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getDebuggeeIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(debuggeeId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, debuggeeId_);
     }
     if (includeAllUsers_ != false) {
@@ -1128,10 +1128,10 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (stripResults_ != false) {
       output.writeBool(5, stripResults_);
     }
-    if (!getWaitTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(waitToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, waitToken_);
     }
-    if (!getClientVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clientVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 8, clientVersion_);
     }
     unknownFields.writeTo(output);
@@ -1143,7 +1143,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getDebuggeeIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(debuggeeId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, debuggeeId_);
     }
     if (includeAllUsers_ != false) {
@@ -1158,10 +1158,10 @@ public int getSerializedSize() {
     if (stripResults_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(5, stripResults_);
     }
-    if (!getWaitTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(waitToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, waitToken_);
     }
-    if (!getClientVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clientVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(8, clientVersion_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListBreakpointsResponse.java b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListBreakpointsResponse.java
index 32e5692b..f71afc25 100644
--- a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListBreakpointsResponse.java
+++ b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListBreakpointsResponse.java
@@ -281,7 +281,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < breakpoints_.size(); i++) {
       output.writeMessage(1, breakpoints_.get(i));
     }
-    if (!getNextWaitTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextWaitToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextWaitToken_);
     }
     unknownFields.writeTo(output);
@@ -296,7 +296,7 @@ public int getSerializedSize() {
     for (int i = 0; i < breakpoints_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, breakpoints_.get(i));
     }
-    if (!getNextWaitTokenBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextWaitToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextWaitToken_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListDebuggeesRequest.java b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListDebuggeesRequest.java
index af471412..e0d2ebac 100644
--- a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListDebuggeesRequest.java
+++ b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/ListDebuggeesRequest.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 (!getProjectBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(project_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, project_);
     }
     if (includeInactive_ != false) {
       output.writeBool(3, includeInactive_);
     }
-    if (!getClientVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clientVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, clientVersion_);
     }
     unknownFields.writeTo(output);
@@ -275,13 +275,13 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getProjectBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(project_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, project_);
     }
     if (includeInactive_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(3, includeInactive_);
     }
-    if (!getClientVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clientVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, clientVersion_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/SetBreakpointRequest.java b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/SetBreakpointRequest.java
index b12290dc..88c816bc 100644
--- a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/SetBreakpointRequest.java
+++ b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/SetBreakpointRequest.java
@@ -306,13 +306,13 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getDebuggeeIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(debuggeeId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, debuggeeId_);
     }
     if (breakpoint_ != null) {
       output.writeMessage(2, getBreakpoint());
     }
-    if (!getClientVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clientVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, clientVersion_);
     }
     unknownFields.writeTo(output);
@@ -324,13 +324,13 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getDebuggeeIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(debuggeeId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, debuggeeId_);
     }
     if (breakpoint_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getBreakpoint());
     }
-    if (!getClientVersionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clientVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, clientVersion_);
     }
     size += unknownFields.getSerializedSize();
diff --git a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/SourceLocation.java b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/SourceLocation.java
index e5c2a01f..cc3c2701 100644
--- a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/SourceLocation.java
+++ b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/SourceLocation.java
@@ -222,7 +222,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getPathBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(path_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, path_);
     }
     if (line_ != 0) {
@@ -240,7 +240,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getPathBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(path_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, path_);
     }
     if (line_ != 0) {
diff --git a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/StackFrame.java b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/StackFrame.java
index 66c93635..251c80e0 100644
--- a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/StackFrame.java
+++ b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/StackFrame.java
@@ -419,7 +419,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getFunctionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(function_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, function_);
     }
     if (location_ != null) {
@@ -440,7 +440,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getFunctionBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(function_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, function_);
     }
     if (location_ != null) {
diff --git a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/UpdateActiveBreakpointRequest.java b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/UpdateActiveBreakpointRequest.java
index 23b9105e..62c14778 100644
--- a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/UpdateActiveBreakpointRequest.java
+++ b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/UpdateActiveBreakpointRequest.java
@@ -250,7 +250,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getDebuggeeIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(debuggeeId_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, debuggeeId_);
     }
     if (breakpoint_ != null) {
@@ -265,7 +265,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getDebuggeeIdBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(debuggeeId_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, debuggeeId_);
     }
     if (breakpoint_ != null) {
diff --git a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/Variable.java b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/Variable.java
index b150217f..e255722a 100644
--- a/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/Variable.java
+++ b/proto-google-cloud-debugger-client-v2/src/main/java/com/google/devtools/clouddebugger/v2/Variable.java
@@ -633,10 +633,10 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
-    if (!getValueBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(value_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, value_);
     }
     for (int i = 0; i < members_.size(); i++) {
@@ -648,7 +648,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (status_ != null) {
       output.writeMessage(5, getStatus());
     }
-    if (!getTypeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(type_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, type_);
     }
     unknownFields.writeTo(output);
@@ -660,10 +660,10 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    if (!getNameBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
     }
-    if (!getValueBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(value_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, value_);
     }
     for (int i = 0; i < members_.size(); i++) {
@@ -675,7 +675,7 @@ public int getSerializedSize() {
     if (status_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, getStatus());
     }
-    if (!getTypeBytes().isEmpty()) {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(type_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, type_);
     }
     size += unknownFields.getSerializedSize();