mvn clean install时报错NullPointerException

• 报错信息

  [ERROR] Failed to execute goal org.apache.maven.plugins:maven-plugin-plugin:3.2:descriptor (default-descriptor) on project docker-image-builder: Execution default-descriptor of goal org.apache.maven.plugins:maven-plugin-plugin:3.2:descriptor failed.: NullPointerException -> [Help 1]
  [ERROR] 
  [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
  [ERROR] Re-run Maven using the -X switch to enable full debug logging.
  [ERROR] 
  [ERROR] For more information about the errors and possible solutions, please read the following articles:
  [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutionException
  
  Process finished with exit code 1

  

• 解决方案：maven-plugin-plugin从3.2更新到3.5.1

  

• 参考文档

  • 自定义maven插件失败:org.objectweb.asm.ClassReader.上的java.lang.ArrayIndexOutOfBoundsException: 3379 (来源不详)-腾讯云开发者社区-腾讯云

如何在maven插件项目中处理项目源

• 解释：我想在maven插件中获取到使用该插件的项目的一些信息（如项目名称等）

• 步骤

  • 在maven插件项目中导入依赖

    <dependency>
        <groupId>org.apache.maven</groupId>
        <artifactId>maven-project</artifactId>
        <version>2.0.6</version>
    </dependency>

  • 在Mojo中使用

    @Mojo( name = "xxx", defaultPhase = LifecyclePhase.PROCESS_SOURCES )
    public class TestMojo extends AbstractMojo {
        @Parameter(defaultValue = "${project}", required = true, readonly = true)
    	private MavenProject project;
        
        @Override
        public void execute() {
            String projectName = project.getName();
        }
    }

  • MavenPorject详情解释请跳转查看 MavenProject (Apache Maven 3.8.5 API)

• 参考文档

  • 如何在maven插件中处理项目源-腾讯云开发者社区-腾讯云