I have tried your suggestions and here is that I can say.

@Qualifier and @Lazy doesn't work. @Bean(name = "transactionManager2") is a right solution but with Andrey answer I choice this :

@Bean
@Primary
public JtaTransactionManager jtaTransactionManager(UserTransaction userTransaction,
                                                   TransactionManager transactionManager) {
    JtaTransactionManager jtaTransactionManager = new JtaTransactionManager();
    jtaTransactionManager.setUserTransaction(userTransaction);
    jtaTransactionManager.setTransactionManager(transactionManager);
    jtaTransactionManager.setAllowCustomIsolationLevels(true);
    return jtaTransactionManager;
}

Thanks for your help.