be described as follows:

@Override: This annotation will ensure that we don’t alter the name of the method or any other aspect of the method signature

@PreAuthorize: This is Spring Security’s method-based annotation that allows us to write customized security checks

#entity.username: This de-references the entity argument in the first parameter and then looks up the username parameter using Java bean properties

authentication.name: A Spring Security argument to access the current security context’s authentication object and look up the principal’s name