Spring Data error on Query after detach - spring

Question

I'm using Spring data 1.10.5 with JPA 2.1 and Spring 4.3
Here my configuration
#Bean
public JpaTransactionManager transactionManager(){
JpaTransactionManager res = new JpaTransactionManager();
res.setEntityManagerFactory(entityManagerFactory());
return res;
}
#Bean
public EntityManagerFactory entityManagerFactory() throws PropertyVetoException{
LocalContainerEntityManagerFactoryBean res = new LocalContainerEntityManagerFactoryBean();
res.setDataSource(datasource());
res.setPackagesToScan("com.myapp.core.model");
Map<String,Object> jpaPropertiesMap = new HashMap<>();
jpaPropertiesMap.put("hibernate.hbm2ddl.auto", hibernateHbm2ddl);
res.setJpaPropertyMap(jpaPropertiesMap);
HibernateJpaVendorAdapter hibernateJpaVendorAdapter = new HibernateJpaVendorAdapter();
hibernateJpaVendorAdapter.setShowSql(hibernateShowSql);
hibernateJpaVendorAdapter.setDatabasePlatform(hibernateDialect);
res.setJpaVendorAdapter(hibernateJpaVendorAdapter);
res.afterPropertiesSet();
return res.getObject();
}
#Bean
public DataSource datasource() throws PropertyVetoException {
ComboPooledDataSource pooledDataSource = new ComboPooledDataSource();
pooledDataSource.setDriverClass(dbDriverClassName);
pooledDataSource.setJdbcUrl(dbUrl);
pooledDataSource.setUser(dbUser);
pooledDataSource.setPassword(dbPassword);
pooledDataSource.setMinPoolSize(2);
pooledDataSource.setInitialPoolSize(5);
pooledDataSource.setMaxPoolSize(20);
pooledDataSource.setMaxIdleTime(14400);
pooledDataSource.setIdleConnectionTestPeriod(21600);
return pooledDataSource;
}
I've some simple entities with simple relationships
#Entity
#Table(name = "advertising")
public class Advertising{
#ManyToOne
private WebUserStatus webUserStatus;
#ManyToOne
private Location location;
... ...
}
all was worked fine for one year but if I do the following code
entityManager.detach(advertisingOne);
followed by a query(It's only a select. So something that reads data and don't write anything) on the webUserStatus I've the following error.
The error is strange and I don't understand why the error refers to the Location entity on which I haven't do anything.
javax.persistence.PersistenceException: org.hibernate.PersistentObjectException: detached entity passed to persist: com.myapp.core.model.Location
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:147)
at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:155)
at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1407)
at org.hibernate.query.internal.AbstractProducedQuery.getSingleResult(AbstractProducedQuery.java:1444)
at org.springframework.data.jpa.repository.query.JpaQueryExecution$SingleEntityExecution.doExecute(JpaQueryExecution.java:210)
at org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:82)
at org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:116)
at org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery.java:106)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:482)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:460)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:61)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:133)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
at com.sun.proxy.$Proxy100.getActiveStatus(Unknown Source)
at com.myapp.core.manager.WebUserStatusManager.getActiveStatus(WebUserStatusManager.java:16)
Please, can you help me?

Answer 1

I was working with a #Transactional test method.
In the Production environment all is fine, but in the tests something is missing.
In order to have a clean situation, sometimes is needed a entityManager.clear();