java chained creational OOP design pattern problem

public class Validator {
    private NotValidatedConfig _notValidatedConfig;

    public Validator(NotValidatedConfig notValidatedConfig) {
        _notValidatedConfig = notValidatedConfig;
    }

    public ValidatedConfig validateConfig() {
        return (
            new Phase4Validation(
                new Phase3Validation(
                    new Phase2Validation(
                        new Phase1Validation(
                            _notValidatedConfig
                        ).validate()
                    ).validate()
                ).validate()
            ).validate()
        );
    }

    // Alternative
    public ValidatedConfig validateConfig2() {
        ValidatedPhase1Config validatedPhase1Config = new Phase1Validation(_notValidatedConfig).validate();
        ValidatedPhase2Config validatedPhase2Config = new Phase2Validation(validatedPhase1Config).validate();
        ValidatedPhase3Config validatedPhase3Config = new Phase3Validation(validatedPhase2Config).validate();
        ValidatedPhase4Config validatedPhase4Config = new Phase4Validation(validatedPhase3Config).validate();
        return validatedPhase4Config;
    }
}