运行Sonatype Nexus插件时的NoClassDefFoundError异常

Question

我试图运行一个部署，将Maven插件推到Nexus存储库，但出于某种原因，我一直遇到一个非常奇怪的例外: Maven抱怨org.apache.http.util.Args丢失了。这特别奇怪，因为插件本身似乎并不直接依赖于org.apache.http包，而且即使它是临时的(更有可能)，相关的包也存在于我的存储库中。

我没有对插件使用任何特殊的配置，只是在指南中使用最低配置。完整的堆栈跟踪，如Maven提供的：

Caused by: java.lang.NoClassDefFoundError: org/apache/http/util/Args
        at org.apache.http.auth.UsernamePasswordCredentials.<init>(UsernamePasswordCredentials.java:78)
        at org.sonatype.nexus.client.rest.jersey.NexusClientFactoryImpl.applyAuthenticationIfAny(NexusClientFactoryImpl.java:245)
        at org.sonatype.nexus.client.rest.jersey.NexusClientFactoryImpl.doCreateHttpClientFor(NexusClientFactoryImpl.java:136)
        at org.sonatype.nexus.client.rest.jersey.NexusClientFactoryImpl.createFor(NexusClientFactoryImpl.java:125)
        at org.sonatype.nexus.maven.staging.remote.RemoteNexus.createNexusClient(RemoteNexus.java:189)
        at org.sonatype.nexus.maven.staging.remote.RemoteNexus.<init>(RemoteNexus.java:102)
        at org.sonatype.nexus.maven.staging.deploy.strategy.AbstractStagingDeployStrategy.createRemoteNexus(AbstractStagingDeployStrategy.java:54)
        at org.sonatype.nexus.maven.staging.deploy.strategy.StagingDeployStrategy.deployPerModule(StagingDeployStrategy.java:70)
        at org.sonatype.nexus.maven.staging.deploy.DeployMojo.execute(DeployMojo.java:192)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
        ... 21 more
Caused by: java.lang.ClassNotFoundException: org.apache.http.util.Args
        at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
        at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)
        at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247)
        at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)
        ... 31 more

我的pom.xml的插件配置：

<plugin>
  <groupId>org.sonatype.plugins</groupId>
  <artifactId>nexus-staging-maven-plugin</artifactId>
  <version>1.6.8</version>
  <extensions>true</extensions>
  <configuration>
    <serverId>ossrh</serverId>
    <nexusUrl>https://oss.sonatype.org/</nexusUrl>
    <autoReleaseAfterClose>false</autoReleaseAfterClose>
  </configuration>
</plugin>

提前感谢您的任何建议！

Answer 1

如果其他人遇到问题，很可能是因为项目没有使用Apache，您可以通过编辑POM直接将依赖项注入到插件中：

<plugin>
    <groupId>org.sonatype.plugins</groupId>
    <artifactId>nexus-staging-maven-plugin</artifactId>
    <version>1.6.8</version>
    <extensions>true</extensions>
    <configuration>
        <serverId>ossrh</serverId>
        <nexusUrl>https://oss.sonatype.org/</nexusUrl>
        <autoReleaseAfterClose>false</autoReleaseAfterClose>
    </configuration>
    <dependencies>
        <!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpcore -->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpcore</artifactId>
            <version>4.4.6</version>
        </dependency>
    </dependencies>
</plugin>

请注意，用于直接注入HTTP核心的插件特定的依赖性解决方案。