java-tutorials/spring-5-security/src/main/java/com/baeldung/loginextrafieldscustom/CustomAuthenticationToken.java

package com.baeldung.loginextrafieldscustom;

import java.util.Collection;

import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.GrantedAuthority;

public class CustomAuthenticationToken extends UsernamePasswordAuthenticationToken {

    private String domain;

    public CustomAuthenticationToken(Object principal, Object credentials, String domain) {
        super(principal, credentials);
        this.domain = domain;
        super.setAuthenticated(false);
    }

    public CustomAuthenticationToken(Object principal, Object credentials, String domain, 
        Collection<? extends GrantedAuthority> authorities) {
        super(principal, credentials, authorities);
        this.domain = domain;
        super.setAuthenticated(true); // must use super, as we override
    }

    public String getDomain() {
        return this.domain;
    }
}