Check if a user is root in a java application

Question

How can i verify if a user is root in a java application?

Thanks

Answer 1

The best way is to run

 Process p = Runtime.getRuntime.exec("groups `whoaim`"); 

and try to parse string to get group call root. Your JVM process could be run by user not call root but i.e. moderator but this user could be in root group and you have root privileges.