[keycloak-user] getRoleMappings - please I need a help

Hi, I'm changing PropertyFileUserStorageProvider example. And I need to override the method: Set<RoleModel> getRoleMappingsInternal(); of the class AbstractUserAdapterFederatedStorage.class in order to retrive external roles based on a legacy system. How can I do that? I've tried: protected Set<RoleModel> getRoleMappingsInternal() { Set<RoleModel> roles = new HashSet<>(); RoleModel role = new MyRoleAdapter(realm,"role1","role1","role1 description", false); roles.add(role); return roles; } The code of MyRoleAdapter: public class MyRoleAdapter implements RoleModel{ private String id; private String name; private String description; private RealmModel container; private boolean isClientRole; public RoleProdesanAdapter(RealmModel container, String id, String name, String description, boolean isClientRole) { this.id = id; this.name = name; this.description = description; this.container = container; this.isClientRole = isClientRole; } // getters } Please help me. I've tried a lot but without success! Thanks in advance! Inácio