在没有关联插件的情况下，验证阶段如何在maven中执行操作？

<project>
  ...
  <build>
    <plugins>
      <plugin>
        <groupId>com.example</groupId>
        <artifactId>my-plugin</artifactId>
        <version>1.0.0</version>
        <executions>
          <execution>
            <id>my-execution</id>
            <phase>validate</phase>
            <goals>
              <goal>my-goal</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>
  ...
</project>