in authentication-server/src/main/java/org/apache/servicecomb/fence/authentication/JDBCUserDetails.java [39:44]
public Collection<? extends GrantedAuthority> getAuthorities() {
Set<String> roles = info.getRoles();
Set<SimpleGrantedAuthority> grantedAuthorities = new HashSet<>(roles.size());
roles.forEach(r -> grantedAuthorities.add(new SimpleGrantedAuthority(r)));
return grantedAuthorities;
}