java.lang.NullPointerException is displayed when CloudTasksClient.create()

[RYenike]

Exception in thread "main" java.lang.NullPointerException: Cannot invoke "String.lastIndexOf(int)" because "endpoint" is null
at com.google.api.gax.grpc.InstantiatingGrpcChannelProvider.validateEndpoint(InstantiatingGrpcChannelProvider.java:746)
at com.google.api.gax.grpc.InstantiatingGrpcChannelProvider.withEndpoint(InstantiatingGrpcChannelProvider.java:195)
at com.google.api.gax.rpc.ClientContext.create(ClientContext.java:199)
at com.google.cloud.tasks.v2.stub.GrpcCloudTasksStub.create(GrpcCloudTasksStub.java:254)
at com.google.cloud.tasks.v2.stub.CloudTasksStubSettings.createStub(CloudTasksStubSettings.java:407)
at com.google.cloud.tasks.v2.CloudTasksClient.(CloudTasksClient.java:533)
at com.google.cloud.tasks.v2.CloudTasksClient.create(CloudTasksClient.java:516)
at com.google.cloud.tasks.v2.CloudTasksClient.create(CloudTasksClient.java:508)

Environment details

1. Specify the API at the beginning of the title. For example, "[vision]: ...").
   General, Core, and Other are also allowed as types : CloudTasksClient.create()
2. OS type and version: Windows 10
3. Java version: 20
4. Version(s):
   com.google.cloud
   google-cloud-tasks
   2.42.0

Steps to reproduce

CloudTasksClient client = CloudTasksClient.create()

Code example

// example

CloudTasksClient client = CloudTasksClient.create()

Stack trace

Any relevant stacktrace here.

Exception in thread "main" java.lang.NullPointerException: Cannot invoke "String.lastIndexOf(int)" because "endpoint" is null
at com.google.api.gax.grpc.InstantiatingGrpcChannelProvider.validateEndpoint(InstantiatingGrpcChannelProvider.java:746)
at com.google.api.gax.grpc.InstantiatingGrpcChannelProvider.withEndpoint(InstantiatingGrpcChannelProvider.java:195)
at com.google.api.gax.rpc.ClientContext.create(ClientContext.java:199)
at com.google.cloud.tasks.v2.stub.GrpcCloudTasksStub.create(GrpcCloudTasksStub.java:254)
at com.google.cloud.tasks.v2.stub.CloudTasksStubSettings.createStub(CloudTasksStubSettings.java:407)
at com.google.cloud.tasks.v2.CloudTasksClient.(CloudTasksClient.java:533)
at com.google.cloud.tasks.v2.CloudTasksClient.create(CloudTasksClient.java:516)
at com.google.cloud.tasks.v2.CloudTasksClient.create(CloudTasksClient.java:508)

External references such as API reference guides

• ?

Any additional information below

Following these steps guarantees the quickest resolution possible.

Thanks!

[lqiu96]

Can you provide more information about your dependencies (perhaps provide your pom.xml/ build.gradle file)? Running this locally for me works.

[RYenike]

@JoeWang1127

this is my pom.xml

4.0.0

<groupId>com.autozone</groupId>
<artifactId>data-sync</artifactId>
<version>1.0-SNAPSHOT</version>
<parent>
   <groupId>com.azo.qa.flex</groupId>
   <artifactId>legacy-parent</artifactId>
   <version>1.1.11-SNAPSHOT</version>
</parent>

<properties>
   <maven.compiler.source>1.8</maven.compiler.source>
   <maven.compiler.target>1.8</maven.compiler.target>
   <main.class>com.autozone.datasyncautomation.testrunner.TestRunner</main.class>
</properties>

<dependencies>
   <dependency>
      <groupId>org.java-websocket</groupId>
      <artifactId>Java-WebSocket</artifactId>
      <version>1.5.0</version>
   </dependency>
   <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>libraries-bom</artifactId>
      <version>26.1.5</version>
      <type>pom</type>
   </dependency>
   <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>google-cloud-pubsub</artifactId>
      <version>1.122.2</version>
   </dependency>
   <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>google-cloud-storage</artifactId>
      <version>2.16.0</version>
   </dependency>
   <!-- https://mvnrepository.com/artifact/com.google.cloud/google-cloud-bigquery -->
   <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>google-cloud-bigquery</artifactId>
      <version>2.35.0</version>
   </dependency>
   <!-- https://mvnrepository.com/artifact/com.google.cloud/google-cloud-tasks -->
   <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>google-cloud-tasks</artifactId>
      <version>2.42.0</version>
   </dependency>


</dependencies>
<profiles>
   <profile>
      <id>shade</id>
      <activation>
         <activeByDefault>true</activeByDefault>
      </activation>
      <build>
         <resources>
            <resource>
               <directory>resources/</directory>
            </resource>
         </resources>
         <plugins>
            <plugin>
               <groupId>org.apache.maven.plugins</groupId>
               <artifactId>maven-checkstyle-plugin</artifactId>
               <executions>
                  <execution>
                     <id>validate</id>
                     <phase>validate</phase>
                  </execution>
               </executions>
               <configuration>
            <failOnViolation>false</failOnViolation>
         </configuration>
            </plugin>
            <plugin>
               <groupId>org.apache.maven.plugins</groupId>
               <artifactId>maven-shade-plugin</artifactId>
               <executions>
                  <execution>
                     <id>build</id>
                  </execution>
               </executions>
            </plugin>
         </plugins>
      </build>
   </profile>
</profiles>

[RYenike]

try (CloudTasksClient cloudTasksClient = CloudTasksClient.create()) {
QueueName name = QueueName.of("[PROJECT]", "[LOCATION]", "[QUEUE]");
Queue response = cloudTasksClient.getQueue(name);
}

with this as well its not working

[lqiu96]

There error is most likely due to how we resolve the endpoint. I see your dependencies are a bit old and it is probably due to a combo of old client library + new runtime library and the is unable to determine the endpoint. Can you try and change your pom.xml to use the latest libraries-bom and let us know if that works?

i.e.

<dependencyManagement>
   <dependencies>
   <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>libraries-bom</artifactId>
      <version>26.39.0</version> <!-- Latest libraries bom version -->
      <type>pom</type>
      <scope>import</scope>
   </dependency>
   </dependencies>
</dependencyManagement>

<dependencies>
   <dependency>
      <groupId>org.java-websocket</groupId>
      <artifactId>Java-WebSocket</artifactId>
      <version>1.5.0</version>
   </dependency>
   <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>google-cloud-pubsub</artifactId>  <!-- Version is managed by libraries-bom above -->
   </dependency>
   <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>google-cloud-storage</artifactId> <!-- Version is managed by libraries-bom above -->
   </dependency>
   <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>google-cloud-bigquery</artifactId> <!-- Version is managed by libraries-bom above -->
   </dependency>
   <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>google-cloud-tasks</artifactId> <!-- Version is managed by libraries-bom above -->
   </dependency>
</dependencies>

[RYenike]

@lqiu96

I tried with latest bom its not working

4.0.0

<groupId>com.autozone</groupId>
<artifactId>data-sync</artifactId>
<version>1.0-SNAPSHOT</version>
<parent>
   <groupId>com.azo.qa.flex</groupId>
   <artifactId>legacy-parent</artifactId>
   <version>1.1.11-SNAPSHOT</version>
</parent>

<properties>
   <maven.compiler.source>1.8</maven.compiler.source>
   <maven.compiler.target>1.8</maven.compiler.target>
   <main.class>com.autozone.datasyncautomation.testrunner.TestRunner</main.class>
</properties>

<dependencies>
   <dependency>
      <groupId>org.java-websocket</groupId>
      <artifactId>Java-WebSocket</artifactId>
      <version>1.5.0</version>
   </dependency>
   <!-- https://mvnrepository.com/artifact/com.google.cloud/libraries-bom -->
   <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>libraries-bom</artifactId>
      <version>26.39.0</version>
      <type>pom</type>
   </dependency>

   <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>google-cloud-pubsub</artifactId>
      <version>1.122.2</version>
   </dependency>
   <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>google-cloud-storage</artifactId>
      <version>2.16.0</version>
   </dependency>
   <!-- https://mvnrepository.com/artifact/com.google.cloud/google-cloud-bigquery -->
   <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>google-cloud-bigquery</artifactId>
      <version>2.35.0</version>
   </dependency>
   <!-- https://mvnrepository.com/artifact/com.google.cloud/google-cloud-tasks -->
   <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>google-cloud-tasks</artifactId>
      <version>2.42.0</version>
   </dependency>


</dependencies>
<profiles>
   <profile>
      <id>shade</id>
      <activation>
         <activeByDefault>true</activeByDefault>
      </activation>
      <build>
         <resources>
            <resource>
               <directory>resources/</directory>
            </resource>
         </resources>
         <plugins>
            <plugin>
               <groupId>org.apache.maven.plugins</groupId>
               <artifactId>maven-checkstyle-plugin</artifactId>
               <executions>
                  <execution>
                     <id>validate</id>
                     <phase>validate</phase>
                  </execution>
               </executions>
               <configuration>
            <failOnViolation>false</failOnViolation>
         </configuration>
            </plugin>
            <plugin>
               <groupId>org.apache.maven.plugins</groupId>
               <artifactId>maven-shade-plugin</artifactId>
               <executions>
                  <execution>
                     <id>build</id>
                  </execution>
               </executions>
            </plugin>
         </plugins>
      </build>
   </profile>
</profiles>

[lqiu96]

You're declaring it in the <dependencies> section. You need to declare the <dependencyManagement> section.

Additionally, you are also specifying the versions and not letting the bom set the versions for you:
i.e.

   <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>google-cloud-tasks</artifactId>
      <version>2.42.0</version>
   </dependency>

It should be

   <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>google-cloud-tasks</artifactId>
   </dependency>

once you add in the bom

[RYenike]

@lqiu96 Its now worked like CHarm Thank you