Spring boot @Transactional not rolling back repo.save(object)

The Service

@Service
@Transactional
public class PaiementServiceImpl {

    @Autowired
    PaiementRepository paiement_repo;

    @Transactional(rollbackFor = { ResponseStatusException.class })
    public ResponseEntity<Paiement> store(Paiement paiement ) throws ResponseStatusException {
        Paiement newp = paiement_repo.save(paiement);
        throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "XXXXXXXXXXXXXXXXXXX");
    }
}

The Controller

@RestController
@RequestMapping("/paiements")
@CrossOrigin("*")
@Transactional
@Slf4j
public class PaiementController {

@Autowired
public PaiementRepository paiement_repo;
@Autowired
public PaiementServiceImpl paiementService;
        
@PostMapping
        @Transactional(rollbackFor = { ResponseStatusException.class })
        public ResponseEntity<Paiement> store(@RequestBody Paiement paiement ) throws ResponseStatusException {
            return paiementService.store(paiement);
    }
}

Entity:

@Entity
@Data
@AllArgsConstructor
@NoArgsConstructor
@ToString
public class Paiement {

    @Id @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    private String reference;
    @Temporal(TemporalType.DATE)
    private Date date_paiement;
    private Double montant;
    @Column(length = 10)
    private String etat; //valide , en attente , annulé
    @Column(nullable = true)
    private String chemin;

    @ManyToOne
    private Utilisateur utilisateur;

    @ManyToOne
    private Exercice exercice;

    @JsonProperty(access = JsonProperty.Access.WRITE_ONLY)
    @OneToMany(mappedBy = "paiement")
    private List<Consommation> consommations;
}

Pom:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-devtools</artifactId>
    <scope>runtime</scope>
    <optional>true</optional>
</dependency>
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <scope>runtime</scope>
</dependency>
<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <optional>true</optional>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <scope>test</scope>
</dependency>

<dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-test</artifactId>
    <scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/com.auth0/java-jwt -->
<dependency>
    <groupId>com.auth0</groupId>
    <artifactId>java-jwt</artifactId>
    <version>3.19.2</version>
</dependency>

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-security</artifactId>
</dependency>

<!-- https://mvnrepository.com/artifact/com.h2database/h2 -->
<dependency>
    <groupId>com.h2database</groupId>
    <artifactId>h2</artifactId>
    <scope>runtime</scope>
</dependency>

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-mail</artifactId>
</dependency>

application.properties:

spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=update
spring.DataSource.url= jdbc:mysql://localhost:3306/db_electreau?serverTimezone=UTC&createDatabaseIfNotExist=true
spring.DataSource.username = root
spring.DataSource.password = root
spring.jpa.generate-ddl=true
spring.jpa.hibernate.dll-auto = update
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect

Simple test for @Transactional in spring boot , not working. It saves the object even after the exception

This has been edited multiple times, following your comments, so it's not the original post.

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