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javax.persistence.Basic; import javax.persistence.Entity; import javax.persistence.EntityManager ... = :container") }) public class EContainer { public static EContainer getInstance(EntityManager em ... generateMapItems(Integer numberToGen, boolean subItems, EntityManager em) throws TestException

Leak thread uses a separate transaction, and moreover, a new EntityManager per stored entity object. A batch load should reuse the EntityManager ... ; EntityManager em = emf.createEntityManager();           

(possibly using EntityManager/getReference_Class__Object">em ... javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax ... ; EntityManager em; void test(){ Category cat1 = new Category(1

">EntityManagerFactory / EntityManager instances, i.e ... ="code">EntityManager (not just the same EntityManagerFactoryEntityManager

, we get sporadic problems if we connected to an existing Database and create an EntityManager. 1 ... the creation of EntityManagerFactory or of EntityManager? Is it possible to ask ... > We think a workarround (but not usefull) is to create a entityManager - close it - and wait

(all of them)? Does it happen when the EntityManager is open or closed?EntityManager) then anything that has not been already loaded would be missing.EntityManager

. After runnings some automatic tests for ca. 1 h all EntityManagers are closed and removed from memory (checked ... :#2980b9;">236 Copies of those entitities in the memory (after closing all EntityManagers ... ="code">EntityManager in the connection pool of a live E

> the factory that creates EntityManagers configured according to the specified persistence unit

: the factory that creates EntityManagers configured according

class="pre-java"> MyStepBlockCollection sbc = entityManager.find(id); for (MyStepBlock sb : sbc ... = entityManager.find(id); for (MyStepBlock sb : sbc.stepBlocks) { for (MyStep s : sb.steps ... ; import javax.persistence.Entity; import javax.persistence.EntityManager; import javax.persistence