all: update to proto 3.4.0

10 files changed, 246 insertions, 64 deletions

diff --git a/grpclb/src/generated/main/java/io/grpc/grpclb/ClientStats.java b/grpclb/src/generated/main/java/io/grpc/grpclb/ClientStats.java
index a6fa38d38..82a878ec3 100644
--- a/grpclb/src/generated/main/java/io/grpc/grpclb/ClientStats.java
+++ b/grpclb/src/generated/main/java/io/grpc/grpclb/ClientStats.java
@@ -15,6 +15,7 @@ public  final class ClientStats extends
     com.google.protobuf.GeneratedMessageV3 implements
     // @@protoc_insertion_point(message_implements:grpc.lb.v1.ClientStats)
     ClientStatsOrBuilder {
+private static final long serialVersionUID = 0L;
   // Use ClientStats.newBuilder() to construct.
   private ClientStats(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
     super(builder);
@@ -30,7 +31,7 @@ public  final class ClientStats extends
   @java.lang.Override
   public final com.google.protobuf.UnknownFieldSet
   getUnknownFields() {
-    return com.google.protobuf.UnknownFieldSet.getDefaultInstance();
+    return this.unknownFields;
   }
   private ClientStats(
       com.google.protobuf.CodedInputStream input,
@@ -38,6 +39,8 @@ public  final class ClientStats extends
       throws com.google.protobuf.InvalidProtocolBufferException {
     this();
     int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
     try {
       boolean done = false;
       while (!done) {
@@ -47,7 +50,8 @@ public  final class ClientStats extends
             done = true;
             break;
           default: {
-            if (!input.skipField(tag)) {
+            if (!parseUnknownFieldProto3(
+                input, unknownFields, extensionRegistry, tag)) {
               done = true;
             }
             break;
@@ -105,6 +109,7 @@ public  final class ClientStats extends
       if (((mutable_bitField0_ & 0x00000020) == 0x00000020)) {
         callsFinishedWithDrop_ = java.util.Collections.unmodifiableList(callsFinishedWithDrop_);
       }
+      this.unknownFields = unknownFields.build();
       makeExtensionsImmutable();
     }
   }
@@ -292,6 +297,7 @@ public  final class ClientStats extends
     for (int i = 0; i < callsFinishedWithDrop_.size(); i++) {
       output.writeMessage(8, callsFinishedWithDrop_.get(i));
     }
+    unknownFields.writeTo(output);
   }
 
   public int getSerializedSize() {
@@ -323,11 +329,11 @@ public  final class ClientStats extends
       size += com.google.protobuf.CodedOutputStream
         .computeMessageSize(8, callsFinishedWithDrop_.get(i));
     }
+    size += unknownFields.getSerializedSize();
     memoizedSize = size;
     return size;
   }
 
-  private static final long serialVersionUID = 0L;
   @java.lang.Override
   public boolean equals(final java.lang.Object obj) {
     if (obj == this) {
@@ -354,6 +360,7 @@ public  final class ClientStats extends
         == other.getNumCallsFinishedKnownReceived());
     result = result && getCallsFinishedWithDropList()
         .equals(other.getCallsFinishedWithDropList());
+    result = result && unknownFields.equals(other.unknownFields);
     return result;
   }
 
@@ -591,7 +598,7 @@ public  final class ClientStats extends
     }
     public Builder setField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        Object value) {
+        java.lang.Object value) {
       return (Builder) super.setField(field, value);
     }
     public Builder clearField(
@@ -604,12 +611,12 @@ public  final class ClientStats extends
     }
     public Builder setRepeatedField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        int index, Object value) {
+        int index, java.lang.Object value) {
       return (Builder) super.setRepeatedField(field, index, value);
     }
     public Builder addRepeatedField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        Object value) {
+        java.lang.Object value) {
       return (Builder) super.addRepeatedField(field, value);
     }
     public Builder mergeFrom(com.google.protobuf.Message other) {
@@ -664,6 +671,7 @@ public  final class ClientStats extends
           }
         }
       }
+      this.mergeUnknownFields(other.unknownFields);
       onChanged();
       return this;
     }
@@ -1312,12 +1320,12 @@ public  final class ClientStats extends
     }
     public final Builder setUnknownFields(
         final com.google.protobuf.UnknownFieldSet unknownFields) {
-      return this;
+      return super.setUnknownFieldsProto3(unknownFields);
     }
 
     public final Builder mergeUnknownFields(
         final com.google.protobuf.UnknownFieldSet unknownFields) {
-      return this;
+      return super.mergeUnknownFields(unknownFields);
     }
 
 
diff --git a/grpclb/src/generated/main/java/io/grpc/grpclb/ClientStatsPerToken.java b/grpclb/src/generated/main/java/io/grpc/grpclb/ClientStatsPerToken.java
index 13644c177..a9f5871c8 100644
--- a/grpclb/src/generated/main/java/io/grpc/grpclb/ClientStatsPerToken.java
+++ b/grpclb/src/generated/main/java/io/grpc/grpclb/ClientStatsPerToken.java
@@ -14,6 +14,7 @@ public  final class ClientStatsPerToken extends
     com.google.protobuf.GeneratedMessageV3 implements
     // @@protoc_insertion_point(message_implements:grpc.lb.v1.ClientStatsPerToken)
     ClientStatsPerTokenOrBuilder {
+private static final long serialVersionUID = 0L;
   // Use ClientStatsPerToken.newBuilder() to construct.
   private ClientStatsPerToken(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
     super(builder);
@@ -26,7 +27,7 @@ public  final class ClientStatsPerToken extends
   @java.lang.Override
   public final com.google.protobuf.UnknownFieldSet
   getUnknownFields() {
-    return com.google.protobuf.UnknownFieldSet.getDefaultInstance();
+    return this.unknownFields;
   }
   private ClientStatsPerToken(
       com.google.protobuf.CodedInputStream input,
@@ -34,6 +35,8 @@ public  final class ClientStatsPerToken extends
       throws com.google.protobuf.InvalidProtocolBufferException {
     this();
     int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
     try {
       boolean done = false;
       while (!done) {
@@ -43,7 +46,8 @@ public  final class ClientStatsPerToken extends
             done = true;
             break;
           default: {
-            if (!input.skipField(tag)) {
+            if (!parseUnknownFieldProto3(
+                input, unknownFields, extensionRegistry, tag)) {
               done = true;
             }
             break;
@@ -67,6 +71,7 @@ public  final class ClientStatsPerToken extends
       throw new com.google.protobuf.InvalidProtocolBufferException(
           e).setUnfinishedMessage(this);
     } finally {
+      this.unknownFields = unknownFields.build();
       makeExtensionsImmutable();
     }
   }
@@ -155,6 +160,7 @@ public  final class ClientStatsPerToken extends
     if (numCalls_ != 0L) {
       output.writeInt64(2, numCalls_);
     }
+    unknownFields.writeTo(output);
   }
 
   public int getSerializedSize() {
@@ -169,11 +175,11 @@ public  final class ClientStatsPerToken extends
       size += com.google.protobuf.CodedOutputStream
         .computeInt64Size(2, numCalls_);
     }
+    size += unknownFields.getSerializedSize();
     memoizedSize = size;
     return size;
   }
 
-  private static final long serialVersionUID = 0L;
   @java.lang.Override
   public boolean equals(final java.lang.Object obj) {
     if (obj == this) {
@@ -189,6 +195,7 @@ public  final class ClientStatsPerToken extends
         .equals(other.getLoadBalanceToken());
     result = result && (getNumCalls()
         == other.getNumCalls());
+    result = result && unknownFields.equals(other.unknownFields);
     return result;
   }
 
@@ -374,7 +381,7 @@ public  final class ClientStatsPerToken extends
     }
     public Builder setField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        Object value) {
+        java.lang.Object value) {
       return (Builder) super.setField(field, value);
     }
     public Builder clearField(
@@ -387,12 +394,12 @@ public  final class ClientStatsPerToken extends
     }
     public Builder setRepeatedField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        int index, Object value) {
+        int index, java.lang.Object value) {
       return (Builder) super.setRepeatedField(field, index, value);
     }
     public Builder addRepeatedField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        Object value) {
+        java.lang.Object value) {
       return (Builder) super.addRepeatedField(field, value);
     }
     public Builder mergeFrom(com.google.protobuf.Message other) {
@@ -413,6 +420,7 @@ public  final class ClientStatsPerToken extends
       if (other.getNumCalls() != 0L) {
         setNumCalls(other.getNumCalls());
       }
+      this.mergeUnknownFields(other.unknownFields);
       onChanged();
       return this;
     }
@@ -567,12 +575,12 @@ public  final class ClientStatsPerToken extends
     }
     public final Builder setUnknownFields(
         final com.google.protobuf.UnknownFieldSet unknownFields) {
-      return this;
+      return super.setUnknownFieldsProto3(unknownFields);
     }
 
     public final Builder mergeUnknownFields(
         final com.google.protobuf.UnknownFieldSet unknownFields) {
-      return this;
+      return super.mergeUnknownFields(unknownFields);
     }
 
 
diff --git a/grpclb/src/generated/main/java/io/grpc/grpclb/InitialLoadBalanceRequest.java b/grpclb/src/generated/main/java/io/grpc/grpclb/InitialLoadBalanceRequest.java
index 9f72def7e..96162e76d 100644
--- a/grpclb/src/generated/main/java/io/grpc/grpclb/InitialLoadBalanceRequest.java
+++ b/grpclb/src/generated/main/java/io/grpc/grpclb/InitialLoadBalanceRequest.java
@@ -10,6 +10,7 @@ public  final class InitialLoadBalanceRequest extends
     com.google.protobuf.GeneratedMessageV3 implements
     // @@protoc_insertion_point(message_implements:grpc.lb.v1.InitialLoadBalanceRequest)
     InitialLoadBalanceRequestOrBuilder {
+private static final long serialVersionUID = 0L;
   // Use InitialLoadBalanceRequest.newBuilder() to construct.
   private InitialLoadBalanceRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
     super(builder);
@@ -21,7 +22,7 @@ public  final class InitialLoadBalanceRequest extends
   @java.lang.Override
   public final com.google.protobuf.UnknownFieldSet
   getUnknownFields() {
-    return com.google.protobuf.UnknownFieldSet.getDefaultInstance();
+    return this.unknownFields;
   }
   private InitialLoadBalanceRequest(
       com.google.protobuf.CodedInputStream input,
@@ -29,6 +30,8 @@ public  final class InitialLoadBalanceRequest extends
       throws com.google.protobuf.InvalidProtocolBufferException {
     this();
     int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
     try {
       boolean done = false;
       while (!done) {
@@ -38,7 +41,8 @@ public  final class InitialLoadBalanceRequest extends
             done = true;
             break;
           default: {
-            if (!input.skipField(tag)) {
+            if (!parseUnknownFieldProto3(
+                input, unknownFields, extensionRegistry, tag)) {
               done = true;
             }
             break;
@@ -57,6 +61,7 @@ public  final class InitialLoadBalanceRequest extends
       throw new com.google.protobuf.InvalidProtocolBufferException(
           e).setUnfinishedMessage(this);
     } finally {
+      this.unknownFields = unknownFields.build();
       makeExtensionsImmutable();
     }
   }
@@ -131,6 +136,7 @@ public  final class InitialLoadBalanceRequest extends
     if (!getNameBytes().isEmpty()) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
+    unknownFields.writeTo(output);
   }
 
   public int getSerializedSize() {
@@ -141,11 +147,11 @@ public  final class InitialLoadBalanceRequest extends
     if (!getNameBytes().isEmpty()) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
     }
+    size += unknownFields.getSerializedSize();
     memoizedSize = size;
     return size;
   }
 
-  private static final long serialVersionUID = 0L;
   @java.lang.Override
   public boolean equals(final java.lang.Object obj) {
     if (obj == this) {
@@ -159,6 +165,7 @@ public  final class InitialLoadBalanceRequest extends
     boolean result = true;
     result = result && getName()
         .equals(other.getName());
+    result = result && unknownFields.equals(other.unknownFields);
     return result;
   }
 
@@ -334,7 +341,7 @@ public  final class InitialLoadBalanceRequest extends
     }
     public Builder setField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        Object value) {
+        java.lang.Object value) {
       return (Builder) super.setField(field, value);
     }
     public Builder clearField(
@@ -347,12 +354,12 @@ public  final class InitialLoadBalanceRequest extends
     }
     public Builder setRepeatedField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        int index, Object value) {
+        int index, java.lang.Object value) {
       return (Builder) super.setRepeatedField(field, index, value);
     }
     public Builder addRepeatedField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        Object value) {
+        java.lang.Object value) {
       return (Builder) super.addRepeatedField(field, value);
     }
     public Builder mergeFrom(com.google.protobuf.Message other) {
@@ -370,6 +377,7 @@ public  final class InitialLoadBalanceRequest extends
         name_ = other.name_;
         onChanged();
       }
+      this.mergeUnknownFields(other.unknownFields);
       onChanged();
       return this;
     }
@@ -491,12 +499,12 @@ public  final class InitialLoadBalanceRequest extends
     }
     public final Builder setUnknownFields(
         final com.google.protobuf.UnknownFieldSet unknownFields) {
-      return this;
+      return super.setUnknownFieldsProto3(unknownFields);
     }
 
     public final Builder mergeUnknownFields(
         final com.google.protobuf.UnknownFieldSet unknownFields) {
-      return this;
+      return super.mergeUnknownFields(unknownFields);
     }
 
 
diff --git a/grpclb/src/generated/main/java/io/grpc/grpclb/InitialLoadBalanceResponse.java b/grpclb/src/generated/main/java/io/grpc/grpclb/InitialLoadBalanceResponse.java
index 0f25cef15..f43f63df9 100644
--- a/grpclb/src/generated/main/java/io/grpc/grpclb/InitialLoadBalanceResponse.java
+++ b/grpclb/src/generated/main/java/io/grpc/grpclb/InitialLoadBalanceResponse.java
@@ -10,6 +10,7 @@ public  final class InitialLoadBalanceResponse extends
     com.google.protobuf.GeneratedMessageV3 implements
     // @@protoc_insertion_point(message_implements:grpc.lb.v1.InitialLoadBalanceResponse)
     InitialLoadBalanceResponseOrBuilder {
+private static final long serialVersionUID = 0L;
   // Use InitialLoadBalanceResponse.newBuilder() to construct.
   private InitialLoadBalanceResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
     super(builder);
@@ -21,7 +22,7 @@ public  final class InitialLoadBalanceResponse extends
   @java.lang.Override
   public final com.google.protobuf.UnknownFieldSet
   getUnknownFields() {
-    return com.google.protobuf.UnknownFieldSet.getDefaultInstance();
+    return this.unknownFields;
   }
   private InitialLoadBalanceResponse(
       com.google.protobuf.CodedInputStream input,
@@ -29,6 +30,8 @@ public  final class InitialLoadBalanceResponse extends
       throws com.google.protobuf.InvalidProtocolBufferException {
     this();
     int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
     try {
       boolean done = false;
       while (!done) {
@@ -38,7 +41,8 @@ public  final class InitialLoadBalanceResponse extends
             done = true;
             break;
           default: {
-            if (!input.skipField(tag)) {
+            if (!parseUnknownFieldProto3(
+                input, unknownFields, extensionRegistry, tag)) {
               done = true;
             }
             break;
@@ -70,6 +74,7 @@ public  final class InitialLoadBalanceResponse extends
       throw new com.google.protobuf.InvalidProtocolBufferException(
           e).setUnfinishedMessage(this);
     } finally {
+      this.unknownFields = unknownFields.build();
       makeExtensionsImmutable();
     }
   }
@@ -192,6 +197,7 @@ public  final class InitialLoadBalanceResponse extends
     if (clientStatsReportInterval_ != null) {
       output.writeMessage(2, getClientStatsReportInterval());
     }
+    unknownFields.writeTo(output);
   }
 
   public int getSerializedSize() {
@@ -206,11 +212,11 @@ public  final class InitialLoadBalanceResponse extends
       size += com.google.protobuf.CodedOutputStream
         .computeMessageSize(2, getClientStatsReportInterval());
     }
+    size += unknownFields.getSerializedSize();
     memoizedSize = size;
     return size;
   }
 
-  private static final long serialVersionUID = 0L;
   @java.lang.Override
   public boolean equals(final java.lang.Object obj) {
     if (obj == this) {
@@ -229,6 +235,7 @@ public  final class InitialLoadBalanceResponse extends
       result = result && getClientStatsReportInterval()
           .equals(other.getClientStatsReportInterval());
     }
+    result = result && unknownFields.equals(other.unknownFields);
     return result;
   }
 
@@ -419,7 +426,7 @@ public  final class InitialLoadBalanceResponse extends
     }
     public Builder setField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        Object value) {
+        java.lang.Object value) {
       return (Builder) super.setField(field, value);
     }
     public Builder clearField(
@@ -432,12 +439,12 @@ public  final class InitialLoadBalanceResponse extends
     }
     public Builder setRepeatedField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        int index, Object value) {
+        int index, java.lang.Object value) {
       return (Builder) super.setRepeatedField(field, index, value);
     }
     public Builder addRepeatedField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        Object value) {
+        java.lang.Object value) {
       return (Builder) super.addRepeatedField(field, value);
     }
     public Builder mergeFrom(com.google.protobuf.Message other) {
@@ -458,6 +465,7 @@ public  final class InitialLoadBalanceResponse extends
       if (other.hasClientStatsReportInterval()) {
         mergeClientStatsReportInterval(other.getClientStatsReportInterval());
       }
+      this.mergeUnknownFields(other.unknownFields);
       onChanged();
       return this;
     }
@@ -765,12 +773,12 @@ public  final class InitialLoadBalanceResponse extends
     }
     public final Builder setUnknownFields(
         final com.google.protobuf.UnknownFieldSet unknownFields) {
-      return this;
+      return super.setUnknownFieldsProto3(unknownFields);
     }
 
     public final Builder mergeUnknownFields(
         final com.google.protobuf.UnknownFieldSet unknownFields) {
-      return this;
+      return super.mergeUnknownFields(unknownFields);
     }
 
 
diff --git a/grpclb/src/generated/main/java/io/grpc/grpclb/LoadBalanceRequest.java b/grpclb/src/generated/main/java/io/grpc/grpclb/LoadBalanceRequest.java
index 3f28f4a22..3522a5f94 100644
--- a/grpclb/src/generated/main/java/io/grpc/grpclb/LoadBalanceRequest.java
+++ b/grpclb/src/generated/main/java/io/grpc/grpclb/LoadBalanceRequest.java
@@ -10,6 +10,7 @@ public  final class LoadBalanceRequest extends
     com.google.protobuf.GeneratedMessageV3 implements
     // @@protoc_insertion_point(message_implements:grpc.lb.v1.LoadBalanceRequest)
     LoadBalanceRequestOrBuilder {
+private static final long serialVersionUID = 0L;
   // Use LoadBalanceRequest.newBuilder() to construct.
   private LoadBalanceRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
     super(builder);
@@ -20,7 +21,7 @@ public  final class LoadBalanceRequest extends
   @java.lang.Override
   public final com.google.protobuf.UnknownFieldSet
   getUnknownFields() {
-    return com.google.protobuf.UnknownFieldSet.getDefaultInstance();
+    return this.unknownFields;
   }
   private LoadBalanceRequest(
       com.google.protobuf.CodedInputStream input,
@@ -28,6 +29,8 @@ public  final class LoadBalanceRequest extends
       throws com.google.protobuf.InvalidProtocolBufferException {
     this();
     int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
     try {
       boolean done = false;
       while (!done) {
@@ -37,7 +40,8 @@ public  final class LoadBalanceRequest extends
             done = true;
             break;
           default: {
-            if (!input.skipField(tag)) {
+            if (!parseUnknownFieldProto3(
+                input, unknownFields, extensionRegistry, tag)) {
               done = true;
             }
             break;
@@ -78,6 +82,7 @@ public  final class LoadBalanceRequest extends
       throw new com.google.protobuf.InvalidProtocolBufferException(
           e).setUnfinishedMessage(this);
     } finally {
+      this.unknownFields = unknownFields.build();
       makeExtensionsImmutable();
     }
   }
@@ -139,6 +144,16 @@ public  final class LoadBalanceRequest extends
    *
    * <code>.grpc.lb.v1.InitialLoadBalanceRequest initial_request = 1;</code>
    */
+  public boolean hasInitialRequest() {
+    return loadBalanceRequestTypeCase_ == 1;
+  }
+  /**
+   * <pre>
+   * This message should be sent on the first request to the load balancer.
+   * </pre>
+   *
+   * <code>.grpc.lb.v1.InitialLoadBalanceRequest initial_request = 1;</code>
+   */
   public io.grpc.grpclb.InitialLoadBalanceRequest getInitialRequest() {
     if (loadBalanceRequestTypeCase_ == 1) {
        return (io.grpc.grpclb.InitialLoadBalanceRequest) loadBalanceRequestType_;
@@ -168,6 +183,17 @@ public  final class LoadBalanceRequest extends
    *
    * <code>.grpc.lb.v1.ClientStats client_stats = 2;</code>
    */
+  public boolean hasClientStats() {
+    return loadBalanceRequestTypeCase_ == 2;
+  }
+  /**
+   * <pre>
+   * The client stats should be periodically reported to the load balancer
+   * based on the duration defined in the InitialLoadBalanceResponse.
+   * </pre>
+   *
+   * <code>.grpc.lb.v1.ClientStats client_stats = 2;</code>
+   */
   public io.grpc.grpclb.ClientStats getClientStats() {
     if (loadBalanceRequestTypeCase_ == 2) {
        return (io.grpc.grpclb.ClientStats) loadBalanceRequestType_;
@@ -207,6 +233,7 @@ public  final class LoadBalanceRequest extends
     if (loadBalanceRequestTypeCase_ == 2) {
       output.writeMessage(2, (io.grpc.grpclb.ClientStats) loadBalanceRequestType_);
     }
+    unknownFields.writeTo(output);
   }
 
   public int getSerializedSize() {
@@ -222,11 +249,11 @@ public  final class LoadBalanceRequest extends
       size += com.google.protobuf.CodedOutputStream
         .computeMessageSize(2, (io.grpc.grpclb.ClientStats) loadBalanceRequestType_);
     }
+    size += unknownFields.getSerializedSize();
     memoizedSize = size;
     return size;
   }
 
-  private static final long serialVersionUID = 0L;
   @java.lang.Override
   public boolean equals(final java.lang.Object obj) {
     if (obj == this) {
@@ -253,6 +280,7 @@ public  final class LoadBalanceRequest extends
       case 0:
       default:
     }
+    result = result && unknownFields.equals(other.unknownFields);
     return result;
   }
 
@@ -452,7 +480,7 @@ public  final class LoadBalanceRequest extends
     }
     public Builder setField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        Object value) {
+        java.lang.Object value) {
       return (Builder) super.setField(field, value);
     }
     public Builder clearField(
@@ -465,12 +493,12 @@ public  final class LoadBalanceRequest extends
     }
     public Builder setRepeatedField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        int index, Object value) {
+        int index, java.lang.Object value) {
       return (Builder) super.setRepeatedField(field, index, value);
     }
     public Builder addRepeatedField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        Object value) {
+        java.lang.Object value) {
       return (Builder) super.addRepeatedField(field, value);
     }
     public Builder mergeFrom(com.google.protobuf.Message other) {
@@ -497,6 +525,7 @@ public  final class LoadBalanceRequest extends
           break;
         }
       }
+      this.mergeUnknownFields(other.unknownFields);
       onChanged();
       return this;
     }
@@ -547,6 +576,16 @@ public  final class LoadBalanceRequest extends
      *
      * <code>.grpc.lb.v1.InitialLoadBalanceRequest initial_request = 1;</code>
      */
+    public boolean hasInitialRequest() {
+      return loadBalanceRequestTypeCase_ == 1;
+    }
+    /**
+     * <pre>
+     * This message should be sent on the first request to the load balancer.
+     * </pre>
+     *
+     * <code>.grpc.lb.v1.InitialLoadBalanceRequest initial_request = 1;</code>
+     */
     public io.grpc.grpclb.InitialLoadBalanceRequest getInitialRequest() {
       if (initialRequestBuilder_ == null) {
         if (loadBalanceRequestTypeCase_ == 1) {
@@ -710,6 +749,17 @@ public  final class LoadBalanceRequest extends
      *
      * <code>.grpc.lb.v1.ClientStats client_stats = 2;</code>
      */
+    public boolean hasClientStats() {
+      return loadBalanceRequestTypeCase_ == 2;
+    }
+    /**
+     * <pre>
+     * The client stats should be periodically reported to the load balancer
+     * based on the duration defined in the InitialLoadBalanceResponse.
+     * </pre>
+     *
+     * <code>.grpc.lb.v1.ClientStats client_stats = 2;</code>
+     */
     public io.grpc.grpclb.ClientStats getClientStats() {
       if (clientStatsBuilder_ == null) {
         if (loadBalanceRequestTypeCase_ == 2) {
@@ -871,12 +921,12 @@ public  final class LoadBalanceRequest extends
     }
     public final Builder setUnknownFields(
         final com.google.protobuf.UnknownFieldSet unknownFields) {
-      return this;
+      return super.setUnknownFieldsProto3(unknownFields);
     }
 
     public final Builder mergeUnknownFields(
         final com.google.protobuf.UnknownFieldSet unknownFields) {
-      return this;
+      return super.mergeUnknownFields(unknownFields);
     }
 
 
diff --git a/grpclb/src/generated/main/java/io/grpc/grpclb/LoadBalanceRequestOrBuilder.java b/grpclb/src/generated/main/java/io/grpc/grpclb/LoadBalanceRequestOrBuilder.java
index 6afc7b68f..b6dcd7eb4 100644
--- a/grpclb/src/generated/main/java/io/grpc/grpclb/LoadBalanceRequestOrBuilder.java
+++ b/grpclb/src/generated/main/java/io/grpc/grpclb/LoadBalanceRequestOrBuilder.java
@@ -14,6 +14,14 @@ public interface LoadBalanceRequestOrBuilder extends
    *
    * <code>.grpc.lb.v1.InitialLoadBalanceRequest initial_request = 1;</code>
    */
+  boolean hasInitialRequest();
+  /**
+   * <pre>
+   * This message should be sent on the first request to the load balancer.
+   * </pre>
+   *
+   * <code>.grpc.lb.v1.InitialLoadBalanceRequest initial_request = 1;</code>
+   */
   io.grpc.grpclb.InitialLoadBalanceRequest getInitialRequest();
   /**
    * <pre>
@@ -32,6 +40,15 @@ public interface LoadBalanceRequestOrBuilder extends
    *
    * <code>.grpc.lb.v1.ClientStats client_stats = 2;</code>
    */
+  boolean hasClientStats();
+  /**
+   * <pre>
+   * The client stats should be periodically reported to the load balancer
+   * based on the duration defined in the InitialLoadBalanceResponse.
+   * </pre>
+   *
+   * <code>.grpc.lb.v1.ClientStats client_stats = 2;</code>
+   */
   io.grpc.grpclb.ClientStats getClientStats();
   /**
    * <pre>
diff --git a/grpclb/src/generated/main/java/io/grpc/grpclb/LoadBalanceResponse.java b/grpclb/src/generated/main/java/io/grpc/grpclb/LoadBalanceResponse.java
index 6b7eedeec..a3715a648 100644
--- a/grpclb/src/generated/main/java/io/grpc/grpclb/LoadBalanceResponse.java
+++ b/grpclb/src/generated/main/java/io/grpc/grpclb/LoadBalanceResponse.java
@@ -10,6 +10,7 @@ public  final class LoadBalanceResponse extends
     com.google.protobuf.GeneratedMessageV3 implements
     // @@protoc_insertion_point(message_implements:grpc.lb.v1.LoadBalanceResponse)
     LoadBalanceResponseOrBuilder {
+private static final long serialVersionUID = 0L;
   // Use LoadBalanceResponse.newBuilder() to construct.
   private LoadBalanceResponse(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
     super(builder);
@@ -20,7 +21,7 @@ public  final class LoadBalanceResponse extends
   @java.lang.Override
   public final com.google.protobuf.UnknownFieldSet
   getUnknownFields() {
-    return com.google.protobuf.UnknownFieldSet.getDefaultInstance();
+    return this.unknownFields;
   }
   private LoadBalanceResponse(
       com.google.protobuf.CodedInputStream input,
@@ -28,6 +29,8 @@ public  final class LoadBalanceResponse extends
       throws com.google.protobuf.InvalidProtocolBufferException {
     this();
     int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
     try {
       boolean done = false;
       while (!done) {
@@ -37,7 +40,8 @@ public  final class LoadBalanceResponse extends
             done = true;
             break;
           default: {
-            if (!input.skipField(tag)) {
+            if (!parseUnknownFieldProto3(
+                input, unknownFields, extensionRegistry, tag)) {
               done = true;
             }
             break;
@@ -78,6 +82,7 @@ public  final class LoadBalanceResponse extends
       throw new com.google.protobuf.InvalidProtocolBufferException(
           e).setUnfinishedMessage(this);
     } finally {
+      this.unknownFields = unknownFields.build();
       makeExtensionsImmutable();
     }
   }
@@ -139,6 +144,16 @@ public  final class LoadBalanceResponse extends
    *
    * <code>.grpc.lb.v1.InitialLoadBalanceResponse initial_response = 1;</code>
    */
+  public boolean hasInitialResponse() {
+    return loadBalanceResponseTypeCase_ == 1;
+  }
+  /**
+   * <pre>
+   * This message should be sent on the first response to the client.
+   * </pre>
+   *
+   * <code>.grpc.lb.v1.InitialLoadBalanceResponse initial_response = 1;</code>
+   */
   public io.grpc.grpclb.InitialLoadBalanceResponse getInitialResponse() {
     if (loadBalanceResponseTypeCase_ == 1) {
        return (io.grpc.grpclb.InitialLoadBalanceResponse) loadBalanceResponseType_;
@@ -168,6 +183,17 @@ public  final class LoadBalanceResponse extends
    *
    * <code>.grpc.lb.v1.ServerList server_list = 2;</code>
    */
+  public boolean hasServerList() {
+    return loadBalanceResponseTypeCase_ == 2;
+  }
+  /**
+   * <pre>
+   * Contains the list of servers selected by the load balancer. The client
+   * should send requests to these servers in the specified order.
+   * </pre>
+   *
+   * <code>.grpc.lb.v1.ServerList server_list = 2;</code>
+   */
   public io.grpc.grpclb.ServerList getServerList() {
     if (loadBalanceResponseTypeCase_ == 2) {
        return (io.grpc.grpclb.ServerList) loadBalanceResponseType_;
@@ -207,6 +233,7 @@ public  final class LoadBalanceResponse extends
     if (loadBalanceResponseTypeCase_ == 2) {
       output.writeMessage(2, (io.grpc.grpclb.ServerList) loadBalanceResponseType_);
     }
+    unknownFields.writeTo(output);
   }
 
   public int getSerializedSize() {
@@ -222,11 +249,11 @@ public  final class LoadBalanceResponse extends
       size += com.google.protobuf.CodedOutputStream
         .computeMessageSize(2, (io.grpc.grpclb.ServerList) loadBalanceResponseType_);
     }
+    size += unknownFields.getSerializedSize();
     memoizedSize = size;
     return size;
   }
 
-  private static final long serialVersionUID = 0L;
   @java.lang.Override
   public boolean equals(final java.lang.Object obj) {
     if (obj == this) {
@@ -253,6 +280,7 @@ public  final class LoadBalanceResponse extends
       case 0:
       default:
     }
+    result = result && unknownFields.equals(other.unknownFields);
     return result;
   }
 
@@ -452,7 +480,7 @@ public  final class LoadBalanceResponse extends
     }
     public Builder setField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        Object value) {
+        java.lang.Object value) {
       return (Builder) super.setField(field, value);
     }
     public Builder clearField(
@@ -465,12 +493,12 @@ public  final class LoadBalanceResponse extends
     }
     public Builder setRepeatedField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        int index, Object value) {
+        int index, java.lang.Object value) {
       return (Builder) super.setRepeatedField(field, index, value);
     }
     public Builder addRepeatedField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        Object value) {
+        java.lang.Object value) {
       return (Builder) super.addRepeatedField(field, value);
     }
     public Builder mergeFrom(com.google.protobuf.Message other) {
@@ -497,6 +525,7 @@ public  final class LoadBalanceResponse extends
           break;
         }
       }
+      this.mergeUnknownFields(other.unknownFields);
       onChanged();
       return this;
     }
@@ -547,6 +576,16 @@ public  final class LoadBalanceResponse extends
      *
      * <code>.grpc.lb.v1.InitialLoadBalanceResponse initial_response = 1;</code>
      */
+    public boolean hasInitialResponse() {
+      return loadBalanceResponseTypeCase_ == 1;
+    }
+    /**
+     * <pre>
+     * This message should be sent on the first response to the client.
+     * </pre>
+     *
+     * <code>.grpc.lb.v1.InitialLoadBalanceResponse initial_response = 1;</code>
+     */
     public io.grpc.grpclb.InitialLoadBalanceResponse getInitialResponse() {
       if (initialResponseBuilder_ == null) {
         if (loadBalanceResponseTypeCase_ == 1) {
@@ -710,6 +749,17 @@ public  final class LoadBalanceResponse extends
      *
      * <code>.grpc.lb.v1.ServerList server_list = 2;</code>
      */
+    public boolean hasServerList() {
+      return loadBalanceResponseTypeCase_ == 2;
+    }
+    /**
+     * <pre>
+     * Contains the list of servers selected by the load balancer. The client
+     * should send requests to these servers in the specified order.
+     * </pre>
+     *
+     * <code>.grpc.lb.v1.ServerList server_list = 2;</code>
+     */
     public io.grpc.grpclb.ServerList getServerList() {
       if (serverListBuilder_ == null) {
         if (loadBalanceResponseTypeCase_ == 2) {
@@ -871,12 +921,12 @@ public  final class LoadBalanceResponse extends
     }
     public final Builder setUnknownFields(
         final com.google.protobuf.UnknownFieldSet unknownFields) {
-      return this;
+      return super.setUnknownFieldsProto3(unknownFields);
     }
 
     public final Builder mergeUnknownFields(
         final com.google.protobuf.UnknownFieldSet unknownFields) {
-      return this;
+      return super.mergeUnknownFields(unknownFields);
     }
 
 
diff --git a/grpclb/src/generated/main/java/io/grpc/grpclb/LoadBalanceResponseOrBuilder.java b/grpclb/src/generated/main/java/io/grpc/grpclb/LoadBalanceResponseOrBuilder.java
index 9c8bd6387..68ea194ef 100644
--- a/grpclb/src/generated/main/java/io/grpc/grpclb/LoadBalanceResponseOrBuilder.java
+++ b/grpclb/src/generated/main/java/io/grpc/grpclb/LoadBalanceResponseOrBuilder.java
@@ -14,6 +14,14 @@ public interface LoadBalanceResponseOrBuilder extends
    *
    * <code>.grpc.lb.v1.InitialLoadBalanceResponse initial_response = 1;</code>
    */
+  boolean hasInitialResponse();
+  /**
+   * <pre>
+   * This message should be sent on the first response to the client.
+   * </pre>
+   *
+   * <code>.grpc.lb.v1.InitialLoadBalanceResponse initial_response = 1;</code>
+   */
   io.grpc.grpclb.InitialLoadBalanceResponse getInitialResponse();
   /**
    * <pre>
@@ -32,6 +40,15 @@ public interface LoadBalanceResponseOrBuilder extends
    *
    * <code>.grpc.lb.v1.ServerList server_list = 2;</code>
    */
+  boolean hasServerList();
+  /**
+   * <pre>
+   * Contains the list of servers selected by the load balancer. The client
+   * should send requests to these servers in the specified order.
+   * </pre>
+   *
+   * <code>.grpc.lb.v1.ServerList server_list = 2;</code>
+   */
   io.grpc.grpclb.ServerList getServerList();
   /**
    * <pre>
diff --git a/grpclb/src/generated/main/java/io/grpc/grpclb/Server.java b/grpclb/src/generated/main/java/io/grpc/grpclb/Server.java
index 037bc87a6..e5501c1ab 100644
--- a/grpclb/src/generated/main/java/io/grpc/grpclb/Server.java
+++ b/grpclb/src/generated/main/java/io/grpc/grpclb/Server.java
@@ -15,6 +15,7 @@ public  final class Server extends
     com.google.protobuf.GeneratedMessageV3 implements
     // @@protoc_insertion_point(message_implements:grpc.lb.v1.Server)
     ServerOrBuilder {
+private static final long serialVersionUID = 0L;
   // Use Server.newBuilder() to construct.
   private Server(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
     super(builder);
@@ -29,7 +30,7 @@ public  final class Server extends
   @java.lang.Override
   public final com.google.protobuf.UnknownFieldSet
   getUnknownFields() {
-    return com.google.protobuf.UnknownFieldSet.getDefaultInstance();
+    return this.unknownFields;
   }
   private Server(
       com.google.protobuf.CodedInputStream input,
@@ -37,6 +38,8 @@ public  final class Server extends
       throws com.google.protobuf.InvalidProtocolBufferException {
     this();
     int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
     try {
       boolean done = false;
       while (!done) {
@@ -46,7 +49,8 @@ public  final class Server extends
             done = true;
             break;
           default: {
-            if (!input.skipField(tag)) {
+            if (!parseUnknownFieldProto3(
+                input, unknownFields, extensionRegistry, tag)) {
               done = true;
             }
             break;
@@ -80,6 +84,7 @@ public  final class Server extends
       throw new com.google.protobuf.InvalidProtocolBufferException(
           e).setUnfinishedMessage(this);
     } finally {
+      this.unknownFields = unknownFields.build();
       makeExtensionsImmutable();
     }
   }
@@ -211,6 +216,7 @@ public  final class Server extends
     if (drop_ != false) {
       output.writeBool(4, drop_);
     }
+    unknownFields.writeTo(output);
   }
 
   public int getSerializedSize() {
@@ -233,11 +239,11 @@ public  final class Server extends
       size += com.google.protobuf.CodedOutputStream
         .computeBoolSize(4, drop_);
     }
+    size += unknownFields.getSerializedSize();
     memoizedSize = size;
     return size;
   }
 
-  private static final long serialVersionUID = 0L;
   @java.lang.Override
   public boolean equals(final java.lang.Object obj) {
     if (obj == this) {
@@ -257,6 +263,7 @@ public  final class Server extends
         .equals(other.getLoadBalanceToken());
     result = result && (getDrop()
         == other.getDrop());
+    result = result && unknownFields.equals(other.unknownFields);
     return result;
   }
 
@@ -453,7 +460,7 @@ public  final class Server extends
     }
     public Builder setField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        Object value) {
+        java.lang.Object value) {
       return (Builder) super.setField(field, value);
     }
     public Builder clearField(
@@ -466,12 +473,12 @@ public  final class Server extends
     }
     public Builder setRepeatedField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        int index, Object value) {
+        int index, java.lang.Object value) {
       return (Builder) super.setRepeatedField(field, index, value);
     }
     public Builder addRepeatedField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        Object value) {
+        java.lang.Object value) {
       return (Builder) super.addRepeatedField(field, value);
     }
     public Builder mergeFrom(com.google.protobuf.Message other) {
@@ -498,6 +505,7 @@ public  final class Server extends
       if (other.getDrop() != false) {
         setDrop(other.getDrop());
       }
+      this.mergeUnknownFields(other.unknownFields);
       onChanged();
       return this;
     }
@@ -760,12 +768,12 @@ public  final class Server extends
     }
     public final Builder setUnknownFields(
         final com.google.protobuf.UnknownFieldSet unknownFields) {
-      return this;
+      return super.setUnknownFieldsProto3(unknownFields);
     }
 
     public final Builder mergeUnknownFields(
         final com.google.protobuf.UnknownFieldSet unknownFields) {
-      return this;
+      return super.mergeUnknownFields(unknownFields);
     }
 
 
diff --git a/grpclb/src/generated/main/java/io/grpc/grpclb/ServerList.java b/grpclb/src/generated/main/java/io/grpc/grpclb/ServerList.java
index 5c5fc45e4..29fe3c615 100644
--- a/grpclb/src/generated/main/java/io/grpc/grpclb/ServerList.java
+++ b/grpclb/src/generated/main/java/io/grpc/grpclb/ServerList.java
@@ -10,6 +10,7 @@ public  final class ServerList extends
     com.google.protobuf.GeneratedMessageV3 implements
     // @@protoc_insertion_point(message_implements:grpc.lb.v1.ServerList)
     ServerListOrBuilder {
+private static final long serialVersionUID = 0L;
   // Use ServerList.newBuilder() to construct.
   private ServerList(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
     super(builder);
@@ -21,7 +22,7 @@ public  final class ServerList extends
   @java.lang.Override
   public final com.google.protobuf.UnknownFieldSet
   getUnknownFields() {
-    return com.google.protobuf.UnknownFieldSet.getDefaultInstance();
+    return this.unknownFields;
   }
   private ServerList(
       com.google.protobuf.CodedInputStream input,
@@ -29,6 +30,8 @@ public  final class ServerList extends
       throws com.google.protobuf.InvalidProtocolBufferException {
     this();
     int mutable_bitField0_ = 0;
+    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+        com.google.protobuf.UnknownFieldSet.newBuilder();
     try {
       boolean done = false;
       while (!done) {
@@ -38,7 +41,8 @@ public  final class ServerList extends
             done = true;
             break;
           default: {
-            if (!input.skipField(tag)) {
+            if (!parseUnknownFieldProto3(
+                input, unknownFields, extensionRegistry, tag)) {
               done = true;
             }
             break;
@@ -63,6 +67,7 @@ public  final class ServerList extends
       if (((mutable_bitField0_ & 0x00000001) == 0x00000001)) {
         servers_ = java.util.Collections.unmodifiableList(servers_);
       }
+      this.unknownFields = unknownFields.build();
       makeExtensionsImmutable();
     }
   }
@@ -163,6 +168,7 @@ public  final class ServerList extends
     for (int i = 0; i < servers_.size(); i++) {
       output.writeMessage(1, servers_.get(i));
     }
+    unknownFields.writeTo(output);
   }
 
   public int getSerializedSize() {
@@ -174,11 +180,11 @@ public  final class ServerList extends
       size += com.google.protobuf.CodedOutputStream
         .computeMessageSize(1, servers_.get(i));
     }
+    size += unknownFields.getSerializedSize();
     memoizedSize = size;
     return size;
   }
 
-  private static final long serialVersionUID = 0L;
   @java.lang.Override
   public boolean equals(final java.lang.Object obj) {
     if (obj == this) {
@@ -192,6 +198,7 @@ public  final class ServerList extends
     boolean result = true;
     result = result && getServersList()
         .equals(other.getServersList());
+    result = result && unknownFields.equals(other.unknownFields);
     return result;
   }
 
@@ -383,7 +390,7 @@ public  final class ServerList extends
     }
     public Builder setField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        Object value) {
+        java.lang.Object value) {
       return (Builder) super.setField(field, value);
     }
     public Builder clearField(
@@ -396,12 +403,12 @@ public  final class ServerList extends
     }
     public Builder setRepeatedField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        int index, Object value) {
+        int index, java.lang.Object value) {
       return (Builder) super.setRepeatedField(field, index, value);
     }
     public Builder addRepeatedField(
         com.google.protobuf.Descriptors.FieldDescriptor field,
-        Object value) {
+        java.lang.Object value) {
       return (Builder) super.addRepeatedField(field, value);
     }
     public Builder mergeFrom(com.google.protobuf.Message other) {
@@ -441,6 +448,7 @@ public  final class ServerList extends
           }
         }
       }
+      this.mergeUnknownFields(other.unknownFields);
       onChanged();
       return this;
     }
@@ -835,12 +843,12 @@ public  final class ServerList extends
     }
     public final Builder setUnknownFields(
         final com.google.protobuf.UnknownFieldSet unknownFields) {
-      return this;
+      return super.setUnknownFieldsProto3(unknownFields);
     }
 
     public final Builder mergeUnknownFields(
         final com.google.protobuf.UnknownFieldSet unknownFields) {
-      return this;
+      return super.mergeUnknownFields(unknownFields);
     }