target目录下的东西和老师的不一样

我的target目录下 就一个rat.txt文件，内容如下
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Summary
-------
Generated at: 2019-02-19T11:02:26+08:00

Notes: 0
Binaries: 0
Archives: 0
Standards: 2

Apache Licensed: 1
Generated Documents: 0

JavaDocs are generated, thus a license header is optional.
Generated files do not require license headers.

1 Unknown Licenses

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Files with unapproved licenses:

  src/main/java/com/imooc/app/HelloMaven.Java

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  Files with Apache License headers will be marked AL
  Binary files (which do not require any license headers) will be marked B
  Compressed archives will be marked A
  Notices, licenses etc. will be marked N
  AL    pom.xml
 !????? src/main/java/com/imooc/app/HelloMaven.Java
 
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 Printing headers for text files without a valid license header...
 
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== File: src/main/java/com/imooc/app/HelloMaven.Java
=====================================================
package com.imooc.app;
public class  HelloMaven{
    public static void main(String[] args){
         System.out.println("Hello Maven");
    }
}