springboot spring-boot-maven-plugin-2.3.0.RELEASE.jar doesn't contain HelpMojo.class

When i run command mvn spring-boot:help, i got this error below:

 [ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.3.0.RELEASE:help (default-cli) on project crm: Execution default-cli of goal org.springframework.boot:spring-boot-maven-plugin:2.3.0.RELEASE:help failed: Unable to load the mojo 'help' in the plugin 'org.springframework.boot:spring-boot-maven-plugin:2.3.0.RELEASE'. A required class is missing: org.springframework.boot.maven.HelpMojo

I looked into the spring-boot-maven-plugin-2.3.0.RELEASE.jar, and found HelpMojo.java instead of HelpMojo.class.

Comment From: wilkinsona

Thanks for the report. This is a duplicate of https://github.com/spring-projects/spring-boot/issues/21556.