Hands-On Spring Security 5 for Reactive Applications

Setting up a custom principal

We have created our own custom principal class by implementing the java.security.Principal interface. It's a very simple class in which we take in the username through a constructor and then use that to return in the getName method:

public class JaasPrincipal implements Principal, Serializable {    private String username;    public JaasPrincipal(String username) {        this.username = username;    }    @Override    public String getName() {        return "Authenticated_"+this.username;    }}