【问题标题】：NoClassDefFoundError：com/google/api/gax/grpc/GrpcStatusCode
【发布时间】：2018-07-10 17:40:33
【问题描述】：

开发maven spring boot 应用程序与 Google Cloud Platform 服务，包括 BigQuery、PubSub 和 Dataflow/Beam 在同一应用程序中。

我通过maven添加了以下依赖：

    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-gcp-starter-pubsub</artifactId>
    </dependency>

    <dependency>
        <groupId>org.apache.beam</groupId>
        <artifactId>beam-sdks-java-core</artifactId>
        <version>2.2.0</version>
    </dependency>

    <dependency>
        <groupId>com.google.cloud</groupId>
        <artifactId>google-cloud-bigquery</artifactId>
        <version>0.33.0-beta</version>
    </dependency>

    <dependency>
        <groupId>org.apache.beam</groupId>
        <artifactId>beam-runners-google-cloud-dataflow-java</artifactId>
        <version>2.2.0</version>
    </dependency>

问题是当应用程序运行时，抛出以下异常：

在上下文初始化期间遇到异常 - 取消刷新尝试：org.springframework.beans.factory.UnsatisfiedDependencyException：在类路径资源 [org/springframework/cloud/gcp/pubsub/autoconfig/GcpPubSubAutoConfiguration .class]：通过方法'pubSubAdmin'参数0表示的不满足的依赖关系；嵌套异常是 org.springframework.beans.factory.BeanCreationException：在类路径资源 [org/springframework/cloud/gcp/pubsub/autoconfig/GcpPubSubAutoConfiguration.class] 中定义名称为“topicAdminClient”的 bean 创建时出错：通过工厂方法进行 Bean 实例化失败;嵌套异常是 org.springframework.beans.BeanInstantiationException：无法实例化 [com.google.cloud.pubsub.v1.TopicAdminClient]：工厂方法“topicAdminClient”抛出异常；嵌套异常是 java.lang.NoClassDefFoundError: com/google/api/gax/grpc/GrpcStatusCode

我的 POM 文件内容

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.0.0.RC1</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-webflux</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-gcp-starter-pubsub</artifactId>
    </dependency>

    <dependency>
        <groupId>org.apache.beam</groupId>
        <artifactId>beam-sdks-java-core</artifactId>
        <version>2.2.0</version>
    </dependency>

    <dependency>
        <groupId>com.google.cloud</groupId>
        <artifactId>google-cloud-bigquery</artifactId>
        <version>0.33.0-beta</version>
    </dependency>

    <dependency>
        <groupId>org.apache.beam</groupId>
        <artifactId>beam-runners-google-cloud-dataflow-java</artifactId>
        <version>2.2.0</version>
    </dependency>

    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <optional>true</optional>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>io.projectreactor</groupId>
        <artifactId>reactor-test</artifactId>
        <scope>test</scope>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <executions>
                <execution>
                    <goals>
                        <goal>repackage</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
        <plugin>
            <groupId>com.google.cloud.tools</groupId>
            <artifactId>appengine-maven-plugin</artifactId>
            <version>1.3.2</version>
        </plugin>
    </plugins>
</build>

<repositories>
    <repository>
        <id>spring-milestones</id>
        <name>Spring Milestones</name>
        <url>https://repo.spring.io/milestone</url>
    </repository>
</repositories>

<pluginRepositories>
    <pluginRepository>
        <id>spring-snapshots</id>
        <name>Spring Snapshots</name>
        <url>https://repo.spring.io/snapshot</url>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
    </pluginRepository>
    <pluginRepository>
        <id>spring-milestones</id>
        <name>Spring Milestones</name>
        <url>https://repo.spring.io/milestone</url>
        <snapshots>
            <enabled>false</enabled>
        </snapshots>
    </pluginRepository>
</pluginRepositories>

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-gcp-dependencies</artifactId>
            <version>1.0.0.M2</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

João André Martins 建议的更改出现了另一个异常：

Exception in thread "main" java.lang.RuntimeException: Failed to construct instance from factory method DataflowRunner#fromOptions(interface org.apache.beam.sdk.options.PipelineOptions)
at org.apache.beam.sdk.util.InstanceBuilder.buildFromMethod(InstanceBuilder.java:233)
at org.apache.beam.sdk.util.InstanceBuilder.build(InstanceBuilder.java:162)
at org.apache.beam.sdk.PipelineRunner.fromOptions(PipelineRunner.java:52)
at org.apache.beam.sdk.Pipeline.create(Pipeline.java:142)

Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.beam.sdk.util.InstanceBuilder.buildFromMethod(InstanceBuilder.java:222)
... 4 more
Caused by: java.lang.NoClassDefFoundError: com/google/api/services/cloudresourcemanager/CloudResourceManager$Builder
at org.apache.beam.sdk.extensions.gcp.options.GcpOptions$GcpTempLocationFactory.newCloudResourceManagerClient(GcpOptions.java:369)
at org.apache.beam.sdk.extensions.gcp.options.GcpOptions$GcpTempLocationFactory.create(GcpOptions.java:240)
at org.apache.beam.sdk.extensions.gcp.options.GcpOptions$GcpTempLocationFactory.create(GcpOptions.java:228)
at org.apache.beam.sdk.options.ProxyInvocationHandler.returnDefaultHelper(ProxyInvocationHandler.java:592)
at org.apache.beam.sdk.options.ProxyInvocationHandler.getDefault(ProxyInvocationHandler.java:533)
at org.apache.beam.sdk.options.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:156)
at com.sun.proxy.$Proxy86.getGcpTempLocation(Unknown Source)
at org.apache.beam.runners.dataflow.DataflowRunner.fromOptions(DataflowRunner.java:223)
... 9 more
Caused by: java.lang.ClassNotFoundException: com.google.api.services.cloudresourcemanager.CloudResourceManager$Builder
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 17 more

【问题讨论】：

标签： java spring maven google-cloud-platform

【解决方案1】：

我能够使用您的 pom.xml、spring-cloud-gcp 版本 1.0.0.M2 以及对您的依赖项的以下更改来编译类似的项目。

希望这会有所帮助！

    <dependency>
        <groupId>io.grpc</groupId>
        <artifactId>grpc-core</artifactId>
        <version>1.9.0</version>
    </dependency>

    <dependency>
        <groupId>io.grpc</groupId>
        <artifactId>grpc-netty</artifactId>
        <version>1.9.0</version>
    </dependency>

    <dependency>
        <groupId>org.apache.beam</groupId>
        <artifactId>beam-runners-google-cloud-dataflow-java</artifactId>
        <version>2.2.0</version>
        <exclusions>
            <exclusion>
                <groupId>io.grpc</groupId>
                <artifactId>grpc-core</artifactId>
            </exclusion>
            <exclusion>
                <groupId>io.grpc</groupId>
                <artifactId>grpc-netty</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

【讨论】：

有了你提供的额外依赖，我仍然得到这个：Failed to read artifact descriptor for io.netty:netty-codec-http2:jar:4.1.20.Final Failed to read artifact descriptor for org.apache.httpcomponents:httpclient:jar:4.5.5
发送整个 pom.xml 文件可能很有用。使用我提到的依赖项以及您提到的其余依赖项，使用我们的 BOM，对我有用。
我已经包含了您的建议并得到了一个不同的例外java.lang.NoClassDefFoundError: com/google/api/services/cloudresourcemanager/CloudResourceManager$Builder。请检查更新的帖子
使用您的pom.xml 和我推荐的更改，我可以在没有看到该问题的情况下执行mvn clean spring-boot:run。我建议在你的项目上运行mvn clean，如果这不能解决问题，也可以清除你的本地 Maven 存储库（例如，删除 ~/.m2）。
github.com/spring-cloud/spring-cloud-gcp/issues/442 中建议了一种解决方法。让我们在那里跟进。