From c4f23810f38f24826dfc51ce0a0e4d4e20e55f07 Mon Sep 17 00:00:00 2001
From: Yoshi Automation Bot <yoshi-automation@google.com>
Date: Fri, 6 Aug 2021 11:10:20 -0700
Subject: [PATCH] feat!: release gapic-generator-java v2.0.0 (#484)

This PR was generated using Autosynth. :rainbow:

Synth log will be available here:
https://source.cloud.google.com/results/invocations/5976b7b3-c22d-4a71-a592-a8358d89311c/targets

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PiperOrigin-RevId: 388535346
Source-Link: https://github.com/googleapis/googleapis/commit/d9eaf41de44d953458b18712a3f240bb4c564e48
PiperOrigin-RevId: 388499329
Source-Link: https://github.com/googleapis/googleapis/commit/bb0a090d9204110042ab5dee2ce9e06e8071ce54
---
 .../cloud/tasks/v2/CloudTasksClient.java      |  19 +-
 .../cloud/tasks/v2/CloudTasksSettings.java    |   3 +-
 .../tasks/v2/stub/CloudTasksStubSettings.java |   3 +-
 .../tasks/v2/stub/GrpcCloudTasksStub.java     | 186 ++++++--------
 .../cloud/tasks/v2beta2/CloudTasksClient.java |  19 +-
 .../tasks/v2beta2/CloudTasksSettings.java     |   3 +-
 .../v2beta2/stub/CloudTasksStubSettings.java  |   3 +-
 .../v2beta2/stub/GrpcCloudTasksStub.java      | 230 +++++++-----------
 .../cloud/tasks/v2beta3/CloudTasksClient.java |  19 +-
 .../tasks/v2beta3/CloudTasksSettings.java     |   3 +-
 .../v2beta3/stub/CloudTasksStubSettings.java  |   3 +-
 .../v2beta3/stub/GrpcCloudTasksStub.java      | 186 ++++++--------
 synth.metadata                                |   6 +-
 13 files changed, 244 insertions(+), 439 deletions(-)

diff --git a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/CloudTasksClient.java b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/CloudTasksClient.java
index 0ca751a7..01650898 100644
--- a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/CloudTasksClient.java
+++ b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/CloudTasksClient.java
@@ -16,7 +16,6 @@
 
 package com.google.cloud.tasks.v2;
 
-import com.google.api.core.ApiFunction;
 import com.google.api.core.ApiFuture;
 import com.google.api.core.ApiFutures;
 import com.google.api.core.BetaApi;
@@ -2277,14 +2276,7 @@ public static ApiFuture<ListQueuesPagedResponse> createAsync(
       ApiFuture<ListQueuesPage> futurePage =
           ListQueuesPage.createEmptyPage().createPageAsync(context, futureResponse);
       return ApiFutures.transform(
-          futurePage,
-          new ApiFunction<ListQueuesPage, ListQueuesPagedResponse>() {
-            @Override
-            public ListQueuesPagedResponse apply(ListQueuesPage input) {
-              return new ListQueuesPagedResponse(input);
-            }
-          },
-          MoreExecutors.directExecutor());
+          futurePage, input -> new ListQueuesPagedResponse(input), MoreExecutors.directExecutor());
     }
 
     private ListQueuesPagedResponse(ListQueuesPage page) {
@@ -2353,14 +2345,7 @@ public static ApiFuture<ListTasksPagedResponse> createAsync(
       ApiFuture<ListTasksPage> futurePage =
           ListTasksPage.createEmptyPage().createPageAsync(context, futureResponse);
       return ApiFutures.transform(
-          futurePage,
-          new ApiFunction<ListTasksPage, ListTasksPagedResponse>() {
-            @Override
-            public ListTasksPagedResponse apply(ListTasksPage input) {
-              return new ListTasksPagedResponse(input);
-            }
-          },
-          MoreExecutors.directExecutor());
+          futurePage, input -> new ListTasksPagedResponse(input), MoreExecutors.directExecutor());
     }
 
     private ListTasksPagedResponse(ListTasksPage page) {
diff --git a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/CloudTasksSettings.java b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/CloudTasksSettings.java
index 91acf435..0b9c4aee 100644
--- a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/CloudTasksSettings.java
+++ b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/CloudTasksSettings.java
@@ -242,14 +242,13 @@ public CloudTasksStubSettings.Builder getStubSettingsBuilder() {
       return ((CloudTasksStubSettings.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-tasks/src/main/java/com/google/cloud/tasks/v2/stub/CloudTasksStubSettings.java b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/stub/CloudTasksStubSettings.java
index 5363b5fe..032bd6fa 100644
--- a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/stub/CloudTasksStubSettings.java
+++ b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/stub/CloudTasksStubSettings.java
@@ -660,14 +660,13 @@ 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;
     }
diff --git a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/stub/GrpcCloudTasksStub.java b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/stub/GrpcCloudTasksStub.java
index 090400e3..f7d05c8b 100644
--- a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/stub/GrpcCloudTasksStub.java
+++ b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/stub/GrpcCloudTasksStub.java
@@ -24,7 +24,6 @@
 import com.google.api.gax.grpc.GrpcCallSettings;
 import com.google.api.gax.grpc.GrpcStubCallableFactory;
 import com.google.api.gax.rpc.ClientContext;
-import com.google.api.gax.rpc.RequestParamsExtractor;
 import com.google.api.gax.rpc.UnaryCallable;
 import com.google.cloud.tasks.v2.CreateQueueRequest;
 import com.google.cloud.tasks.v2.CreateTaskRequest;
@@ -54,7 +53,6 @@
 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;
 
@@ -265,130 +263,100 @@ protected GrpcCloudTasksStub(
         GrpcCallSettings.<ListQueuesRequest, ListQueuesResponse>newBuilder()
             .setMethodDescriptor(listQueuesMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<ListQueuesRequest>() {
-                  @Override
-                  public Map<String, String> extract(ListQueuesRequest 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<GetQueueRequest, Queue> getQueueTransportSettings =
         GrpcCallSettings.<GetQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(getQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<GetQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(GetQueueRequest 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<CreateQueueRequest, Queue> createQueueTransportSettings =
         GrpcCallSettings.<CreateQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(createQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<CreateQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(CreateQueueRequest 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<UpdateQueueRequest, Queue> updateQueueTransportSettings =
         GrpcCallSettings.<UpdateQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(updateQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<UpdateQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(UpdateQueueRequest request) {
-                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
-                    params.put("queue.name", String.valueOf(request.getQueue().getName()));
-                    return params.build();
-                  }
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("queue.name", String.valueOf(request.getQueue().getName()));
+                  return params.build();
                 })
             .build();
     GrpcCallSettings<DeleteQueueRequest, Empty> deleteQueueTransportSettings =
         GrpcCallSettings.<DeleteQueueRequest, Empty>newBuilder()
             .setMethodDescriptor(deleteQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<DeleteQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(DeleteQueueRequest 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<PurgeQueueRequest, Queue> purgeQueueTransportSettings =
         GrpcCallSettings.<PurgeQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(purgeQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<PurgeQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(PurgeQueueRequest 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<PauseQueueRequest, Queue> pauseQueueTransportSettings =
         GrpcCallSettings.<PauseQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(pauseQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<PauseQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(PauseQueueRequest 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<ResumeQueueRequest, Queue> resumeQueueTransportSettings =
         GrpcCallSettings.<ResumeQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(resumeQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<ResumeQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(ResumeQueueRequest 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<GetIamPolicyRequest, Policy> getIamPolicyTransportSettings =
         GrpcCallSettings.<GetIamPolicyRequest, Policy>newBuilder()
             .setMethodDescriptor(getIamPolicyMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<GetIamPolicyRequest>() {
-                  @Override
-                  public Map<String, String> extract(GetIamPolicyRequest request) {
-                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
-                    params.put("resource", String.valueOf(request.getResource()));
-                    return params.build();
-                  }
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("resource", String.valueOf(request.getResource()));
+                  return params.build();
                 })
             .build();
     GrpcCallSettings<SetIamPolicyRequest, Policy> setIamPolicyTransportSettings =
         GrpcCallSettings.<SetIamPolicyRequest, Policy>newBuilder()
             .setMethodDescriptor(setIamPolicyMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<SetIamPolicyRequest>() {
-                  @Override
-                  public Map<String, String> extract(SetIamPolicyRequest request) {
-                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
-                    params.put("resource", String.valueOf(request.getResource()));
-                    return params.build();
-                  }
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("resource", String.valueOf(request.getResource()));
+                  return params.build();
                 })
             .build();
     GrpcCallSettings<TestIamPermissionsRequest, TestIamPermissionsResponse>
@@ -396,78 +364,60 @@ public Map<String, String> extract(SetIamPolicyRequest request) {
             GrpcCallSettings.<TestIamPermissionsRequest, TestIamPermissionsResponse>newBuilder()
                 .setMethodDescriptor(testIamPermissionsMethodDescriptor)
                 .setParamsExtractor(
-                    new RequestParamsExtractor<TestIamPermissionsRequest>() {
-                      @Override
-                      public Map<String, String> extract(TestIamPermissionsRequest request) {
-                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
-                        params.put("resource", String.valueOf(request.getResource()));
-                        return params.build();
-                      }
+                    request -> {
+                      ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                      params.put("resource", String.valueOf(request.getResource()));
+                      return params.build();
                     })
                 .build();
     GrpcCallSettings<ListTasksRequest, ListTasksResponse> listTasksTransportSettings =
         GrpcCallSettings.<ListTasksRequest, ListTasksResponse>newBuilder()
             .setMethodDescriptor(listTasksMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<ListTasksRequest>() {
-                  @Override
-                  public Map<String, String> extract(ListTasksRequest 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<GetTaskRequest, Task> getTaskTransportSettings =
         GrpcCallSettings.<GetTaskRequest, Task>newBuilder()
             .setMethodDescriptor(getTaskMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<GetTaskRequest>() {
-                  @Override
-                  public Map<String, String> extract(GetTaskRequest 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<CreateTaskRequest, Task> createTaskTransportSettings =
         GrpcCallSettings.<CreateTaskRequest, Task>newBuilder()
             .setMethodDescriptor(createTaskMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<CreateTaskRequest>() {
-                  @Override
-                  public Map<String, String> extract(CreateTaskRequest 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<DeleteTaskRequest, Empty> deleteTaskTransportSettings =
         GrpcCallSettings.<DeleteTaskRequest, Empty>newBuilder()
             .setMethodDescriptor(deleteTaskMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<DeleteTaskRequest>() {
-                  @Override
-                  public Map<String, String> extract(DeleteTaskRequest 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<RunTaskRequest, Task> runTaskTransportSettings =
         GrpcCallSettings.<RunTaskRequest, Task>newBuilder()
             .setMethodDescriptor(runTaskMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<RunTaskRequest>() {
-                  @Override
-                  public Map<String, String> extract(RunTaskRequest 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();
 
@@ -629,7 +579,13 @@ public UnaryCallable<RunTaskRequest, Task> runTaskCallable() {
 
   @Override
   public final void close() {
-    shutdown();
+    try {
+      backgroundResources.close();
+    } catch (RuntimeException e) {
+      throw e;
+    } catch (Exception e) {
+      throw new IllegalStateException("Failed to close resource", e);
+    }
   }
 
   @Override
diff --git a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta2/CloudTasksClient.java b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta2/CloudTasksClient.java
index e23cf997..68293abb 100644
--- a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta2/CloudTasksClient.java
+++ b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta2/CloudTasksClient.java
@@ -16,7 +16,6 @@
 
 package com.google.cloud.tasks.v2beta2;
 
-import com.google.api.core.ApiFunction;
 import com.google.api.core.ApiFuture;
 import com.google.api.core.ApiFutures;
 import com.google.api.core.BetaApi;
@@ -2941,14 +2940,7 @@ public static ApiFuture<ListQueuesPagedResponse> createAsync(
       ApiFuture<ListQueuesPage> futurePage =
           ListQueuesPage.createEmptyPage().createPageAsync(context, futureResponse);
       return ApiFutures.transform(
-          futurePage,
-          new ApiFunction<ListQueuesPage, ListQueuesPagedResponse>() {
-            @Override
-            public ListQueuesPagedResponse apply(ListQueuesPage input) {
-              return new ListQueuesPagedResponse(input);
-            }
-          },
-          MoreExecutors.directExecutor());
+          futurePage, input -> new ListQueuesPagedResponse(input), MoreExecutors.directExecutor());
     }
 
     private ListQueuesPagedResponse(ListQueuesPage page) {
@@ -3017,14 +3009,7 @@ public static ApiFuture<ListTasksPagedResponse> createAsync(
       ApiFuture<ListTasksPage> futurePage =
           ListTasksPage.createEmptyPage().createPageAsync(context, futureResponse);
       return ApiFutures.transform(
-          futurePage,
-          new ApiFunction<ListTasksPage, ListTasksPagedResponse>() {
-            @Override
-            public ListTasksPagedResponse apply(ListTasksPage input) {
-              return new ListTasksPagedResponse(input);
-            }
-          },
-          MoreExecutors.directExecutor());
+          futurePage, input -> new ListTasksPagedResponse(input), MoreExecutors.directExecutor());
     }
 
     private ListTasksPagedResponse(ListTasksPage page) {
diff --git a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta2/CloudTasksSettings.java b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta2/CloudTasksSettings.java
index 63e71a74..eb5e1430 100644
--- a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta2/CloudTasksSettings.java
+++ b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta2/CloudTasksSettings.java
@@ -263,14 +263,13 @@ public CloudTasksStubSettings.Builder getStubSettingsBuilder() {
       return ((CloudTasksStubSettings.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-tasks/src/main/java/com/google/cloud/tasks/v2beta2/stub/CloudTasksStubSettings.java b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta2/stub/CloudTasksStubSettings.java
index 0544a11e..d2c1df7a 100644
--- a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta2/stub/CloudTasksStubSettings.java
+++ b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta2/stub/CloudTasksStubSettings.java
@@ -735,14 +735,13 @@ 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;
     }
diff --git a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta2/stub/GrpcCloudTasksStub.java b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta2/stub/GrpcCloudTasksStub.java
index 2b9a7d6e..d0bb8f15 100644
--- a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta2/stub/GrpcCloudTasksStub.java
+++ b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta2/stub/GrpcCloudTasksStub.java
@@ -25,7 +25,6 @@
 import com.google.api.gax.grpc.GrpcCallSettings;
 import com.google.api.gax.grpc.GrpcStubCallableFactory;
 import com.google.api.gax.rpc.ClientContext;
-import com.google.api.gax.rpc.RequestParamsExtractor;
 import com.google.api.gax.rpc.UnaryCallable;
 import com.google.cloud.tasks.v2beta2.AcknowledgeTaskRequest;
 import com.google.cloud.tasks.v2beta2.CancelLeaseRequest;
@@ -60,7 +59,6 @@
 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;
 
@@ -311,130 +309,100 @@ protected GrpcCloudTasksStub(
         GrpcCallSettings.<ListQueuesRequest, ListQueuesResponse>newBuilder()
             .setMethodDescriptor(listQueuesMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<ListQueuesRequest>() {
-                  @Override
-                  public Map<String, String> extract(ListQueuesRequest 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<GetQueueRequest, Queue> getQueueTransportSettings =
         GrpcCallSettings.<GetQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(getQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<GetQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(GetQueueRequest 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<CreateQueueRequest, Queue> createQueueTransportSettings =
         GrpcCallSettings.<CreateQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(createQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<CreateQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(CreateQueueRequest 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<UpdateQueueRequest, Queue> updateQueueTransportSettings =
         GrpcCallSettings.<UpdateQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(updateQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<UpdateQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(UpdateQueueRequest request) {
-                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
-                    params.put("queue.name", String.valueOf(request.getQueue().getName()));
-                    return params.build();
-                  }
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("queue.name", String.valueOf(request.getQueue().getName()));
+                  return params.build();
                 })
             .build();
     GrpcCallSettings<DeleteQueueRequest, Empty> deleteQueueTransportSettings =
         GrpcCallSettings.<DeleteQueueRequest, Empty>newBuilder()
             .setMethodDescriptor(deleteQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<DeleteQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(DeleteQueueRequest 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<PurgeQueueRequest, Queue> purgeQueueTransportSettings =
         GrpcCallSettings.<PurgeQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(purgeQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<PurgeQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(PurgeQueueRequest 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<PauseQueueRequest, Queue> pauseQueueTransportSettings =
         GrpcCallSettings.<PauseQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(pauseQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<PauseQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(PauseQueueRequest 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<ResumeQueueRequest, Queue> resumeQueueTransportSettings =
         GrpcCallSettings.<ResumeQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(resumeQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<ResumeQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(ResumeQueueRequest 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<GetIamPolicyRequest, Policy> getIamPolicyTransportSettings =
         GrpcCallSettings.<GetIamPolicyRequest, Policy>newBuilder()
             .setMethodDescriptor(getIamPolicyMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<GetIamPolicyRequest>() {
-                  @Override
-                  public Map<String, String> extract(GetIamPolicyRequest request) {
-                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
-                    params.put("resource", String.valueOf(request.getResource()));
-                    return params.build();
-                  }
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("resource", String.valueOf(request.getResource()));
+                  return params.build();
                 })
             .build();
     GrpcCallSettings<SetIamPolicyRequest, Policy> setIamPolicyTransportSettings =
         GrpcCallSettings.<SetIamPolicyRequest, Policy>newBuilder()
             .setMethodDescriptor(setIamPolicyMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<SetIamPolicyRequest>() {
-                  @Override
-                  public Map<String, String> extract(SetIamPolicyRequest request) {
-                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
-                    params.put("resource", String.valueOf(request.getResource()));
-                    return params.build();
-                  }
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("resource", String.valueOf(request.getResource()));
+                  return params.build();
                 })
             .build();
     GrpcCallSettings<TestIamPermissionsRequest, TestIamPermissionsResponse>
@@ -442,130 +410,100 @@ public Map<String, String> extract(SetIamPolicyRequest request) {
             GrpcCallSettings.<TestIamPermissionsRequest, TestIamPermissionsResponse>newBuilder()
                 .setMethodDescriptor(testIamPermissionsMethodDescriptor)
                 .setParamsExtractor(
-                    new RequestParamsExtractor<TestIamPermissionsRequest>() {
-                      @Override
-                      public Map<String, String> extract(TestIamPermissionsRequest request) {
-                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
-                        params.put("resource", String.valueOf(request.getResource()));
-                        return params.build();
-                      }
+                    request -> {
+                      ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                      params.put("resource", String.valueOf(request.getResource()));
+                      return params.build();
                     })
                 .build();
     GrpcCallSettings<ListTasksRequest, ListTasksResponse> listTasksTransportSettings =
         GrpcCallSettings.<ListTasksRequest, ListTasksResponse>newBuilder()
             .setMethodDescriptor(listTasksMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<ListTasksRequest>() {
-                  @Override
-                  public Map<String, String> extract(ListTasksRequest 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<GetTaskRequest, Task> getTaskTransportSettings =
         GrpcCallSettings.<GetTaskRequest, Task>newBuilder()
             .setMethodDescriptor(getTaskMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<GetTaskRequest>() {
-                  @Override
-                  public Map<String, String> extract(GetTaskRequest 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<CreateTaskRequest, Task> createTaskTransportSettings =
         GrpcCallSettings.<CreateTaskRequest, Task>newBuilder()
             .setMethodDescriptor(createTaskMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<CreateTaskRequest>() {
-                  @Override
-                  public Map<String, String> extract(CreateTaskRequest 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<DeleteTaskRequest, Empty> deleteTaskTransportSettings =
         GrpcCallSettings.<DeleteTaskRequest, Empty>newBuilder()
             .setMethodDescriptor(deleteTaskMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<DeleteTaskRequest>() {
-                  @Override
-                  public Map<String, String> extract(DeleteTaskRequest 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<LeaseTasksRequest, LeaseTasksResponse> leaseTasksTransportSettings =
         GrpcCallSettings.<LeaseTasksRequest, LeaseTasksResponse>newBuilder()
             .setMethodDescriptor(leaseTasksMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<LeaseTasksRequest>() {
-                  @Override
-                  public Map<String, String> extract(LeaseTasksRequest 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<AcknowledgeTaskRequest, Empty> acknowledgeTaskTransportSettings =
         GrpcCallSettings.<AcknowledgeTaskRequest, Empty>newBuilder()
             .setMethodDescriptor(acknowledgeTaskMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<AcknowledgeTaskRequest>() {
-                  @Override
-                  public Map<String, String> extract(AcknowledgeTaskRequest 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<RenewLeaseRequest, Task> renewLeaseTransportSettings =
         GrpcCallSettings.<RenewLeaseRequest, Task>newBuilder()
             .setMethodDescriptor(renewLeaseMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<RenewLeaseRequest>() {
-                  @Override
-                  public Map<String, String> extract(RenewLeaseRequest 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<CancelLeaseRequest, Task> cancelLeaseTransportSettings =
         GrpcCallSettings.<CancelLeaseRequest, Task>newBuilder()
             .setMethodDescriptor(cancelLeaseMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<CancelLeaseRequest>() {
-                  @Override
-                  public Map<String, String> extract(CancelLeaseRequest 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<RunTaskRequest, Task> runTaskTransportSettings =
         GrpcCallSettings.<RunTaskRequest, Task>newBuilder()
             .setMethodDescriptor(runTaskMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<RunTaskRequest>() {
-                  @Override
-                  public Map<String, String> extract(RunTaskRequest 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();
 
@@ -759,7 +697,13 @@ public UnaryCallable<RunTaskRequest, Task> runTaskCallable() {
 
   @Override
   public final void close() {
-    shutdown();
+    try {
+      backgroundResources.close();
+    } catch (RuntimeException e) {
+      throw e;
+    } catch (Exception e) {
+      throw new IllegalStateException("Failed to close resource", e);
+    }
   }
 
   @Override
diff --git a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta3/CloudTasksClient.java b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta3/CloudTasksClient.java
index 2406492f..26450bf3 100644
--- a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta3/CloudTasksClient.java
+++ b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta3/CloudTasksClient.java
@@ -16,7 +16,6 @@
 
 package com.google.cloud.tasks.v2beta3;
 
-import com.google.api.core.ApiFunction;
 import com.google.api.core.ApiFuture;
 import com.google.api.core.ApiFutures;
 import com.google.api.core.BetaApi;
@@ -2291,14 +2290,7 @@ public static ApiFuture<ListQueuesPagedResponse> createAsync(
       ApiFuture<ListQueuesPage> futurePage =
           ListQueuesPage.createEmptyPage().createPageAsync(context, futureResponse);
       return ApiFutures.transform(
-          futurePage,
-          new ApiFunction<ListQueuesPage, ListQueuesPagedResponse>() {
-            @Override
-            public ListQueuesPagedResponse apply(ListQueuesPage input) {
-              return new ListQueuesPagedResponse(input);
-            }
-          },
-          MoreExecutors.directExecutor());
+          futurePage, input -> new ListQueuesPagedResponse(input), MoreExecutors.directExecutor());
     }
 
     private ListQueuesPagedResponse(ListQueuesPage page) {
@@ -2367,14 +2359,7 @@ public static ApiFuture<ListTasksPagedResponse> createAsync(
       ApiFuture<ListTasksPage> futurePage =
           ListTasksPage.createEmptyPage().createPageAsync(context, futureResponse);
       return ApiFutures.transform(
-          futurePage,
-          new ApiFunction<ListTasksPage, ListTasksPagedResponse>() {
-            @Override
-            public ListTasksPagedResponse apply(ListTasksPage input) {
-              return new ListTasksPagedResponse(input);
-            }
-          },
-          MoreExecutors.directExecutor());
+          futurePage, input -> new ListTasksPagedResponse(input), MoreExecutors.directExecutor());
     }
 
     private ListTasksPagedResponse(ListTasksPage page) {
diff --git a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta3/CloudTasksSettings.java b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta3/CloudTasksSettings.java
index f4b31eac..18df7d20 100644
--- a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta3/CloudTasksSettings.java
+++ b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta3/CloudTasksSettings.java
@@ -243,14 +243,13 @@ public CloudTasksStubSettings.Builder getStubSettingsBuilder() {
       return ((CloudTasksStubSettings.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-tasks/src/main/java/com/google/cloud/tasks/v2beta3/stub/CloudTasksStubSettings.java b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta3/stub/CloudTasksStubSettings.java
index 5921b03b..d1431931 100644
--- a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta3/stub/CloudTasksStubSettings.java
+++ b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta3/stub/CloudTasksStubSettings.java
@@ -661,14 +661,13 @@ 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;
     }
diff --git a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta3/stub/GrpcCloudTasksStub.java b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta3/stub/GrpcCloudTasksStub.java
index bbdff01f..fac9d556 100644
--- a/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta3/stub/GrpcCloudTasksStub.java
+++ b/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2beta3/stub/GrpcCloudTasksStub.java
@@ -25,7 +25,6 @@
 import com.google.api.gax.grpc.GrpcCallSettings;
 import com.google.api.gax.grpc.GrpcStubCallableFactory;
 import com.google.api.gax.rpc.ClientContext;
-import com.google.api.gax.rpc.RequestParamsExtractor;
 import com.google.api.gax.rpc.UnaryCallable;
 import com.google.cloud.tasks.v2beta3.CreateQueueRequest;
 import com.google.cloud.tasks.v2beta3.CreateTaskRequest;
@@ -55,7 +54,6 @@
 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;
 
@@ -267,130 +265,100 @@ protected GrpcCloudTasksStub(
         GrpcCallSettings.<ListQueuesRequest, ListQueuesResponse>newBuilder()
             .setMethodDescriptor(listQueuesMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<ListQueuesRequest>() {
-                  @Override
-                  public Map<String, String> extract(ListQueuesRequest 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<GetQueueRequest, Queue> getQueueTransportSettings =
         GrpcCallSettings.<GetQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(getQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<GetQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(GetQueueRequest 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<CreateQueueRequest, Queue> createQueueTransportSettings =
         GrpcCallSettings.<CreateQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(createQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<CreateQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(CreateQueueRequest 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<UpdateQueueRequest, Queue> updateQueueTransportSettings =
         GrpcCallSettings.<UpdateQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(updateQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<UpdateQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(UpdateQueueRequest request) {
-                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
-                    params.put("queue.name", String.valueOf(request.getQueue().getName()));
-                    return params.build();
-                  }
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("queue.name", String.valueOf(request.getQueue().getName()));
+                  return params.build();
                 })
             .build();
     GrpcCallSettings<DeleteQueueRequest, Empty> deleteQueueTransportSettings =
         GrpcCallSettings.<DeleteQueueRequest, Empty>newBuilder()
             .setMethodDescriptor(deleteQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<DeleteQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(DeleteQueueRequest 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<PurgeQueueRequest, Queue> purgeQueueTransportSettings =
         GrpcCallSettings.<PurgeQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(purgeQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<PurgeQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(PurgeQueueRequest 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<PauseQueueRequest, Queue> pauseQueueTransportSettings =
         GrpcCallSettings.<PauseQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(pauseQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<PauseQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(PauseQueueRequest 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<ResumeQueueRequest, Queue> resumeQueueTransportSettings =
         GrpcCallSettings.<ResumeQueueRequest, Queue>newBuilder()
             .setMethodDescriptor(resumeQueueMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<ResumeQueueRequest>() {
-                  @Override
-                  public Map<String, String> extract(ResumeQueueRequest 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<GetIamPolicyRequest, Policy> getIamPolicyTransportSettings =
         GrpcCallSettings.<GetIamPolicyRequest, Policy>newBuilder()
             .setMethodDescriptor(getIamPolicyMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<GetIamPolicyRequest>() {
-                  @Override
-                  public Map<String, String> extract(GetIamPolicyRequest request) {
-                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
-                    params.put("resource", String.valueOf(request.getResource()));
-                    return params.build();
-                  }
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("resource", String.valueOf(request.getResource()));
+                  return params.build();
                 })
             .build();
     GrpcCallSettings<SetIamPolicyRequest, Policy> setIamPolicyTransportSettings =
         GrpcCallSettings.<SetIamPolicyRequest, Policy>newBuilder()
             .setMethodDescriptor(setIamPolicyMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<SetIamPolicyRequest>() {
-                  @Override
-                  public Map<String, String> extract(SetIamPolicyRequest request) {
-                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
-                    params.put("resource", String.valueOf(request.getResource()));
-                    return params.build();
-                  }
+                request -> {
+                  ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                  params.put("resource", String.valueOf(request.getResource()));
+                  return params.build();
                 })
             .build();
     GrpcCallSettings<TestIamPermissionsRequest, TestIamPermissionsResponse>
@@ -398,78 +366,60 @@ public Map<String, String> extract(SetIamPolicyRequest request) {
             GrpcCallSettings.<TestIamPermissionsRequest, TestIamPermissionsResponse>newBuilder()
                 .setMethodDescriptor(testIamPermissionsMethodDescriptor)
                 .setParamsExtractor(
-                    new RequestParamsExtractor<TestIamPermissionsRequest>() {
-                      @Override
-                      public Map<String, String> extract(TestIamPermissionsRequest request) {
-                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
-                        params.put("resource", String.valueOf(request.getResource()));
-                        return params.build();
-                      }
+                    request -> {
+                      ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                      params.put("resource", String.valueOf(request.getResource()));
+                      return params.build();
                     })
                 .build();
     GrpcCallSettings<ListTasksRequest, ListTasksResponse> listTasksTransportSettings =
         GrpcCallSettings.<ListTasksRequest, ListTasksResponse>newBuilder()
             .setMethodDescriptor(listTasksMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<ListTasksRequest>() {
-                  @Override
-                  public Map<String, String> extract(ListTasksRequest 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<GetTaskRequest, Task> getTaskTransportSettings =
         GrpcCallSettings.<GetTaskRequest, Task>newBuilder()
             .setMethodDescriptor(getTaskMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<GetTaskRequest>() {
-                  @Override
-                  public Map<String, String> extract(GetTaskRequest 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<CreateTaskRequest, Task> createTaskTransportSettings =
         GrpcCallSettings.<CreateTaskRequest, Task>newBuilder()
             .setMethodDescriptor(createTaskMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<CreateTaskRequest>() {
-                  @Override
-                  public Map<String, String> extract(CreateTaskRequest 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<DeleteTaskRequest, Empty> deleteTaskTransportSettings =
         GrpcCallSettings.<DeleteTaskRequest, Empty>newBuilder()
             .setMethodDescriptor(deleteTaskMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<DeleteTaskRequest>() {
-                  @Override
-                  public Map<String, String> extract(DeleteTaskRequest 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<RunTaskRequest, Task> runTaskTransportSettings =
         GrpcCallSettings.<RunTaskRequest, Task>newBuilder()
             .setMethodDescriptor(runTaskMethodDescriptor)
             .setParamsExtractor(
-                new RequestParamsExtractor<RunTaskRequest>() {
-                  @Override
-                  public Map<String, String> extract(RunTaskRequest 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();
 
@@ -631,7 +581,13 @@ public UnaryCallable<RunTaskRequest, Task> runTaskCallable() {
 
   @Override
   public final void close() {
-    shutdown();
+    try {
+      backgroundResources.close();
+    } catch (RuntimeException e) {
+      throw e;
+    } catch (Exception e) {
+      throw new IllegalStateException("Failed to close resource", e);
+    }
   }
 
   @Override
diff --git a/synth.metadata b/synth.metadata
index 1bf463b1..89ccee5a 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -4,15 +4,15 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-tasks.git",
-        "sha": "00f3512c1c600ce24e3c293e6772cd88787ff06d"
+        "sha": "d3f2e859ca49dc2f3e4937f9b6c15adf85167ccb"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "551681f25e36b11829e87e580281350461f4f3f5",
-        "internalRef": "379784268"
+        "sha": "d9eaf41de44d953458b18712a3f240bb4c564e48",
+        "internalRef": "388535346"
       }
     },
     {