The bug cannot be found or the main class cannot be loaded main.java.*

Development encountered a problem, do not know what caused, a Maven Springboot project, the main class started when the error, said not found

The main class, at first suspected to be the problem of springboot, casually write a separate class, there is the main method, try to run.

Project clean, re-import, how to do not, traverse the online to, in fact, the problem is not consistent. And then a flash of inspiration

Click here to see the main classpath that run executes is main.java.com.**. class.
This removes the Main.java only the package path is executed successfully, hateful one of my sunny afternoon, all used to change the bug,

The bug cannot be found or the main class cannot be loaded main.java.*