Architect's maven----maven Illegal character: \65279

1 Introduction.

  As the title. No matter how the compilation fails, it must be a problem with the java file.
2. Solutions.
  (1) Copy the file with Notepad, and then delete the conflicting file.
  (2) Create a new file with the same name, and put the content into it. ok

3. Summary.
  Don't ask me how pitiful I am, my hometown is far away.