spring JPA repository not flushing record to database - spring-boot

Question

I see the response from repository.save() as updated object but same is not getting reflected in database.
I tried using JPArepository also and tried saveandflush method exposed by API but no luck.
Below are the details of code and configuration
Used sql driver with hibernate as middleware.
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.username=root
spring.datasource.password=
spring.datasource.url=jdbc:mysql://localhost:3306/ccmBatch?useSSL=false
spring.batch.job.enabled=false
spring.datasource.initialize=false
spring.jpa.open-in-view=false
spring.jpa.hibernate.ddl-auto=create
spring.jpa.generate-ddl=true
spring.jpa.hibernate.use-new-id-generator-mappings=true
spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
spring.jpa.hibernate.naming.strategy=org.hibernate.cfg.ImprovedNamingStrategy
spring.jpa.show-sql=true
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
POJO :
#Entity(name = "jobtracker")
public class JobTracker implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
#Column(name = "CCMBATCH")
String lockVal;
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
long id;
public JobTracker() {
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getLockVal() {
return lockVal;
}
public void setLockVal(String lockVal) {
this.lockVal = lockVal;
}
}
Repository :
#Repository
public interface JobTrackerRepository extends CrudRepository<JobTracker, Long>{
}
Caller code :
#Autowired
JobTrackerRepository repsositoy;
#Transactional
public boolean acquireJobExecutionLock() {
LOGGER.info("acquire lock!!!");
String jobExecutionLockValue = new Date().toString();
JobTracker tracker = new JobTracker();
tracker.setLockVal(jobExecutionLockValue);
JobTracker job = repsositoy.save(tracker);
LOGGER.info("lock acquired!!!"+job.id+" "+job.lockVal);
return true;
}
job object used above is printing correct updated values.
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>2.4.3</version>
</dependency>
mysql> desc jobtracker;
+----------+--------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+----------+--------------+------+-----+---------+-------+
| id | bigint | NO | PRI | NULL | |
| CCMBATCH | varchar(255) | YES | | NULL | |
+----------+--------------+------+-----+---------+-------+