Получение java.sql.SQLException: транзакции не поддерживаются. Ошибка при вызове Spring Boot Rest API с базой данных Informix.

Я создал простое приложение Spring для загрузки, которое может получать/отправлять данные в базу данных Informix.

Вызывая Rest API, получая ниже упомянутое сообщение об ошибке, я искал основную причину примерно того же, но не нашел никаких источников,

Ценю помощь в этом. Вот конфигурация и код, которые я создал:

application.properties

spring.datasource.url=jdbc:informix-sqli://XXXX:XXXX/localdb:INFORMIXSERVER=ol_xxxxx
spring.datasource.username=username
spring.datasource.password=password
spring.datasource.driver-class-name=com.informix.jdbc.IfxDriver
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.InformixDialect
spring.jpa.hibernate.ddl-auto=update

Наряду с Spring Starter Web, Data JPA, Dev Tools, добавленными ниже дополнительной зависимости

   <dependency>
        <groupId>com.ibm.informix</groupId>
        <artifactId>jdbc</artifactId>
        <version>4.10.8.1</version>
    </dependency>

Контроллер отдыха

@RestController
@RequestMapping("/api")
public class UserController {
    @Autowired
    UserRepository repository;
    
    @GetMapping("/user/{userId}")
    public void getUserDetails(@PathVariable Long countryId) {
      Optional<webCountry> country = repository.findById(countryId);
      System.out.println(country);
    }
    
    @PostMapping(path="/saveuser")
    public void saveUser(@RequestBody UserEntity user) {
        repository.save(data);
    }
}

Интерфейс репозитория

@Repository
public interface UserRepository extends JpaRepository<UserEntity, Long> {

}

При вызове Get API из сообщения Человек получает сообщение об ошибке ниже

    Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is org.hibernate.TransactionException: JDBC begin transaction failed: ] with root cause

java.sql.SQLException: Transactions not supported
    at com.informix.util.IfxErrMsg.buildException(IfxErrMsg.java:474) ~[jdbc-4.10.8.1.jar:4.10.8.1]
    at com.informix.util.IfxErrMsg.getSQLException(IfxErrMsg.java:443) ~[jdbc-4.10.8.1.jar:4.10.8.1]
    at com.informix.util.IfxErrMsg.getSQLException(IfxErrMsg.java:394) ~[jdbc-4.10.8.1.jar:4.10.8.1]
    at com.informix.jdbc.IfxSqliConnect.setAutoCommit(IfxSqliConnect.java:2426) ~[jdbc-4.10.8.1.jar:4.10.8.1]
    at com.zaxxer.hikari.pool.ProxyConnection.setAutoCommit(ProxyConnection.java:414) ~[HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.pool.HikariProxyConnection.setAutoCommit(HikariProxyConnection.java) ~[HikariCP-3.4.5.jar:na]
    at org.hibernate.resource.jdbc.internal.AbstractLogicalConnectionImplementor.begin(AbstractLogicalConnectionImplementor.java:72) ~[hibernate-core-5.4.25.Final.jar:5.4.25.Final]
    at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.begin(LogicalConnectionManagedImpl.java:282) ~[hibernate-core-5.4.25.Final.jar:5.4.25.Final]
    at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.begin(JdbcResourceLocalTransactionCoordinatorImpl.java:246) ~[hibernate-core-5.4.25.Final.jar:5.4.25.Final]
    at org.hibernate.engine.transaction.internal.TransactionImpl.begin(TransactionImpl.java:83) ~[hibernate-core-5.4.25.Final.jar:5.4.25.Final]
    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:184) ~[spring-orm-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:402) ~[spring-orm-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.startTransaction(AbstractPlatformTransactionManager.java:400) ~[spring-tx-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) ~[spring-tx-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:574) ~[spring-tx-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:361) ~[spring-tx-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:118) ~[spring-tx-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139) ~[spring-tx-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:178) ~[spring-data-jpa-2.3.6.RELEASE.jar:2.3.6.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95) ~[spring-aop-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.12.RELEASE.jar:5.2.12.RELEASE]
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212) ~[spring-aop-5.2.12.RELEASE.jar:5.2.12.RELEASE]