Hi, i receive such error:
org.springframework.dao.DuplicateKeyException: A different object with the same identifier value was already associated with the session : [ua.knu.knudev.teammanager.domain.AccountProfile#e9dee3f4-196f-4036-8d72-4cdf2b437010] at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:304) ~[spring-orm-6.1.13.jar:6.1.13] at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:244) ~[spring-orm-6.1.13.jar:6.1.13] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:550) ~[spring-orm-6.1.13.jar:6.1.13] at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:61) ~[spring-tx-6.1.13.jar:6.1.13] at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:335) ~[spring-tx-6.1.13.jar:6.1.13] at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:160) ~[spring-tx-6.1.13.jar:6.1.13] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:184) ~[spring-aop-6.1.13.jar:6.1.13] at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:165) ~[spring-data-jpa-3.3.4.jar:3.3.4],
when try to save all that entities, using that method
public List<Project> saveProjects(Set<Project> projectsToCreate) { if (!projectsToCreate.isEmpty()) { return projectRepository.saveAll(projectsToCreate); } return Collections.emptyList(); }
Also i have method which i think can ruin my code
What can be the solution for that problem?