diff --git a/google-cloud-vpcaccess/src/main/java/com/google/cloud/vpcaccess/v1/VpcAccessServiceClient.java b/google-cloud-vpcaccess/src/main/java/com/google/cloud/vpcaccess/v1/VpcAccessServiceClient.java
index e92d7a71..1a50ff3c 100644
--- a/google-cloud-vpcaccess/src/main/java/com/google/cloud/vpcaccess/v1/VpcAccessServiceClient.java
+++ b/google-cloud-vpcaccess/src/main/java/com/google/cloud/vpcaccess/v1/VpcAccessServiceClient.java
@@ -16,7 +16,6 @@
 
 package com.google.cloud.vpcaccess.v1;
 
-import com.google.api.core.ApiFunction;
 import com.google.api.core.ApiFuture;
 import com.google.api.core.ApiFutures;
 import com.google.api.core.BetaApi;
@@ -698,12 +697,7 @@ public static ApiFuture<ListConnectorsPagedResponse> createAsync(
           ListConnectorsPage.createEmptyPage().createPageAsync(context, futureResponse);
       return ApiFutures.transform(
           futurePage,
-          new ApiFunction<ListConnectorsPage, ListConnectorsPagedResponse>() {
-            @Override
-            public ListConnectorsPagedResponse apply(ListConnectorsPage input) {
-              return new ListConnectorsPagedResponse(input);
-            }
-          },
+          input -> new ListConnectorsPagedResponse(input),
           MoreExecutors.directExecutor());
     }
 
diff --git a/google-cloud-vpcaccess/src/main/java/com/google/cloud/vpcaccess/v1/VpcAccessServiceSettings.java b/google-cloud-vpcaccess/src/main/java/com/google/cloud/vpcaccess/v1/VpcAccessServiceSettings.java
index d3fa75e2..8bf9ae56 100644
--- a/google-cloud-vpcaccess/src/main/java/com/google/cloud/vpcaccess/v1/VpcAccessServiceSettings.java
+++ b/google-cloud-vpcaccess/src/main/java/com/google/cloud/vpcaccess/v1/VpcAccessServiceSettings.java
@@ -191,14 +191,13 @@ public VpcAccessServiceStubSettings.Builder getStubSettingsBuilder() {
       return ((VpcAccessServiceStubSettings.Builder) getStubSettings());
     }
 
-    // NEXT_MAJOR_VER: remove 'throws Exception'.
     /**
      * Applies the given settings updater function to all of the unary API methods in this service.
      *
      * <p>Note: This method does not support applying settings to streaming methods.
      */
     public Builder applyToAllUnaryMethods(
-        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) {
       super.applyToAllUnaryMethods(
           getStubSettingsBuilder().unaryMethodSettingsBuilders(), settingsUpdater);
       return this;
diff --git a/google-cloud-vpcaccess/src/main/java/com/google/cloud/vpcaccess/v1/stub/GrpcVpcAccessServiceStub.java b/google-cloud-vpcaccess/src/main/java/com/google/cloud/vpcaccess/v1/stub/GrpcVpcAccessServiceStub.java
index dbaa9208..1950c7d7 100644
--- a/google-cloud-vpcaccess/src/main/java/com/google/cloud/vpcaccess/v1/stub/GrpcVpcAccessServiceStub.java
+++ b/google-cloud-vpcaccess/src/main/java/com/google/cloud/vpcaccess/v1/stub/GrpcVpcAccessServiceStub.java
@@ -24,7 +24,6 @@
 import com.google.api.gax.grpc.GrpcStubCallableFactory;
 import com.google.api.gax.rpc.ClientContext;
 import com.google.api.gax.rpc.OperationCallable;
-import com.google.api.gax.rpc.RequestParamsExtractor;
 import com.google.api.gax.rpc.UnaryCallable;
 import com.google.cloud.vpcaccess.v1.Connector;
 import com.google.cloud.vpcaccess.v1.CreateConnectorRequest;
@@ -40,7 +39,6 @@
 import io.grpc.MethodDescriptor;
 import io.grpc.protobuf.ProtoUtils;
 import java.io.IOException;
-import java.util.Map;
 import java.util.concurrent.TimeUnit;
 import javax.annotation.Generated;
 
@@ -151,26 +149,20 @@ protected GrpcVpcAccessServiceStub(
         GrpcCallSettings.<CreateConnectorRequest, Operation>newBuilder()
             .setMethodDescriptor(createConnectorMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<CreateConnectorRequest>() {
-                  @Override
-                  public Map<String, String> extract(CreateConnectorRequest request) {
-                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
-                    params.put("parent", String.valueOf(request.getParent()));
-                    return params.build();
-                  }
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("parent", String.valueOf(request.getParent()));
+                  return params.build();
                 })
             .build();
     GrpcCallSettings<GetConnectorRequest, Connector> getConnectorTransportSettings =
         GrpcCallSettings.<GetConnectorRequest, Connector>newBuilder()
             .setMethodDescriptor(getConnectorMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<GetConnectorRequest>() {
-                  @Override
-                  public Map<String, String> extract(GetConnectorRequest request) {
-                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
-                    params.put("name", String.valueOf(request.getName()));
-                    return params.build();
-                  }
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("name", String.valueOf(request.getName()));
+                  return params.build();
                 })
             .build();
     GrpcCallSettings<ListConnectorsRequest, ListConnectorsResponse>
@@ -178,26 +170,20 @@ public Map<String, String> extract(GetConnectorRequest request) {
             GrpcCallSettings.<ListConnectorsRequest, ListConnectorsResponse>newBuilder()
                 .setMethodDescriptor(listConnectorsMethodDescriptor)
                 .setParamsExtractor(
-                    new RequestParamsExtractor<ListConnectorsRequest>() {
-                      @Override
-                      public Map<String, String> extract(ListConnectorsRequest request) {
-                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
-                        params.put("parent", String.valueOf(request.getParent()));
-                        return params.build();
-                      }
+                    request -> {
+                      ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                      params.put("parent", String.valueOf(request.getParent()));
+                      return params.build();
                     })
                 .build();
     GrpcCallSettings<DeleteConnectorRequest, Operation> deleteConnectorTransportSettings =
         GrpcCallSettings.<DeleteConnectorRequest, Operation>newBuilder()
             .setMethodDescriptor(deleteConnectorMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<DeleteConnectorRequest>() {
-                  @Override
-                  public Map<String, String> extract(DeleteConnectorRequest request) {
-                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
-                    params.put("name", String.valueOf(request.getName()));
-                    return params.build();
-                  }
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("name", String.valueOf(request.getName()));
+                  return params.build();
                 })
             .build();
 
diff --git a/google-cloud-vpcaccess/src/main/java/com/google/cloud/vpcaccess/v1/stub/VpcAccessServiceStubSettings.java b/google-cloud-vpcaccess/src/main/java/com/google/cloud/vpcaccess/v1/stub/VpcAccessServiceStubSettings.java
index 20825c66..d97d6aaf 100644
--- a/google-cloud-vpcaccess/src/main/java/com/google/cloud/vpcaccess/v1/stub/VpcAccessServiceStubSettings.java
+++ b/google-cloud-vpcaccess/src/main/java/com/google/cloud/vpcaccess/v1/stub/VpcAccessServiceStubSettings.java
@@ -450,14 +450,13 @@ private static Builder initDefaults(Builder builder) {
       return builder;
     }
 
-    // NEXT_MAJOR_VER: remove 'throws Exception'.
     /**
      * Applies the given settings updater function to all of the unary API methods in this service.
      *
      * <p>Note: This method does not support applying settings to streaming methods.
      */
     public Builder applyToAllUnaryMethods(
-        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) throws Exception {
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) {
       super.applyToAllUnaryMethods(unaryMethodSettingsBuilders, settingsUpdater);
       return this;
     }