diff --git a/google-cloud-pubsub/.factorypath b/google-cloud-pubsub/.factorypath
new file mode 100644
index 000000000..27b6d1c5a
--- /dev/null
+++ b/google-cloud-pubsub/.factorypath
@@ -0,0 +1,3 @@
+<factorypath>
+    <factorypathentry kind="VARJAR" id="M2_REPO/com/google/auto/value/auto-value/1.7.4/auto-value-1.7.4.jar" enabled="true" runInBatchMode="false"/>
+</factorypath>
diff --git a/google-cloud-pubsub/pom.xml b/google-cloud-pubsub/pom.xml
index df03465bb..461d935e4 100644
--- a/google-cloud-pubsub/pom.xml
+++ b/google-cloud-pubsub/pom.xml
@@ -17,6 +17,11 @@
     <site.installationModule>google-cloud-pubsub</site.installationModule>
   </properties>
   <dependencies>
+    <dependency>
+      <groupId>com.google.auth</groupId>
+      <artifactId>google-auth-library-oauth2-http</artifactId>
+      <version>0.24.2-SNAPSHOT</version>
+    </dependency>
     <dependency>
       <groupId>io.grpc</groupId>
       <artifactId>grpc-api</artifactId>
@@ -57,10 +62,12 @@
     <dependency>
       <groupId>com.google.api</groupId>
       <artifactId>gax</artifactId>
+      <version>1.62.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.google.api</groupId>
       <artifactId>gax-grpc</artifactId>
+      <version>1.62.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>org.threeten</groupId>
@@ -86,10 +93,6 @@
       <groupId>com.google.auto.value</groupId>
       <artifactId>auto-value-annotations</artifactId>
     </dependency>
-    <dependency>
-      <groupId>com.google.http-client</groupId>
-      <artifactId>google-http-client</artifactId>
-    </dependency>
 
     <!-- Test dependencies -->
     <dependency>
diff --git a/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/stub/PublisherStubSettings.java b/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/stub/PublisherStubSettings.java
index 696671660..db05871b8 100644
--- a/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/stub/PublisherStubSettings.java
+++ b/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/stub/PublisherStubSettings.java
@@ -240,7 +240,7 @@ public static List<String> getDefaultServiceScopes() {
 
   /** Returns a builder for the default credentials for this service. */
   public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
-    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+    return GoogleCredentialsProvider.newBuilder().setDefaultScopes(DEFAULT_SERVICE_SCOPES);
   }
 
   /** Returns a builder for the default ChannelProvider for this service. */
diff --git a/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/stub/SchemaServiceStubSettings.java b/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/stub/SchemaServiceStubSettings.java
index c78c64fc2..c712b1910 100644
--- a/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/stub/SchemaServiceStubSettings.java
+++ b/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/stub/SchemaServiceStubSettings.java
@@ -170,7 +170,7 @@ public static List<String> getDefaultServiceScopes() {
 
   /** Returns a builder for the default credentials for this service. */
   public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
-    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+    return GoogleCredentialsProvider.newBuilder().setDefaultScopes(DEFAULT_SERVICE_SCOPES);
   }
 
   /** Returns a builder for the default ChannelProvider for this service. */
diff --git a/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/stub/SubscriberStubSettings.java b/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/stub/SubscriberStubSettings.java
index d061959f1..4aed371dc 100644
--- a/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/stub/SubscriberStubSettings.java
+++ b/google-cloud-pubsub/src/main/java/com/google/cloud/pubsub/v1/stub/SubscriberStubSettings.java
@@ -274,7 +274,7 @@ public static List<String> getDefaultServiceScopes() {
 
   /** Returns a builder for the default credentials for this service. */
   public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
-    return GoogleCredentialsProvider.newBuilder().setScopesToApply(DEFAULT_SERVICE_SCOPES);
+    return GoogleCredentialsProvider.newBuilder().setDefaultScopes(DEFAULT_SERVICE_SCOPES);
   }
 
   /** Returns a builder for the default ChannelProvider for this service. */
diff --git a/google-cloud-pubsub/src/test/java/com/google/cloud/pubsub/v1/SampleTest.java b/google-cloud-pubsub/src/test/java/com/google/cloud/pubsub/v1/SampleTest.java
new file mode 100644
index 000000000..79d518e62
--- /dev/null
+++ b/google-cloud-pubsub/src/test/java/com/google/cloud/pubsub/v1/SampleTest.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2016 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.pubsub.v1;
+
+import com.google.pubsub.v1.ProjectName;
+import com.google.pubsub.v1.Topic;
+import java.io.IOException;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+public class SampleTest {
+
+  @Test
+  public void testListTopics() throws Exception {
+    String projectId = "dcatest-281318";
+
+    //TopicAdminClient topicAdminClient = TopicAdminClient.create(TopicAdminSettings.newBuilder().setEndpoint("us-east1-pubsub.googleapis.com:443").build());
+    //TopicAdminClient topicAdminClient = TopicAdminClient.create();
+    //TopicAdminSettings settings = TopicAdminSettings.newBuilder().setEndpoint("us-east1-pubsub.googleapis.com:443").build();
+    TopicAdminSettings settings = TopicAdminSettings.newBuilder().setEndpoint("pubsub.googleapis.com:443").build();
+    TopicAdminClient topicAdminClient = TopicAdminClient.create(settings);
+     
+    ProjectName projectName = ProjectName.of(projectId);
+    for (Topic topic : topicAdminClient.listTopics(projectName).iterateAll()) {
+      System.out.println(topic.getName());
+    }
+    System.out.println("Listed all topics.");
+  }
+}