Hi,
Anyone can point me to the error please?
Note: this is a simplified test case extracted from my real app.
Thus the weird usage of 3 entity managers and
em1.getTransaction().begin();
em1.clear();
em1.close();
at the end of each section.
In real app it happens in different times.
HibernateUtil is basically copied from the tutorial.
Code:
HibernateUtil.open();
EntityManager em1 = HibernateUtil.reserveEntityManager();
em1.getTransaction().begin();
StringType st1 = new StringType();
st1.setName("a");
em1.persist(st1);
em1.getTransaction().commit();
em1.getTransaction().begin();
em1.clear();
em1.close();
EntityManager em2 = HibernateUtil.reserveEntityManager();
em2.getTransaction().begin();
StringType st2 = new StringType();
st2.setName("a");
st2.setId(st1.getId());
em2.merge(st2);
em2.getTransaction().commit();
em2.getTransaction().begin();
em2.clear();
em2.close();
EntityManager em3 = HibernateUtil.reserveEntityManager();
em3.getTransaction().begin();
StringType st3 = new StringType();
st3.setName("a");
st3.setId(st1.getId());
[b]em3.merge(st3);[/b]
em3.getTransaction().commit();
em3.getTransaction().begin();
em3.clear();
em3.close();
Code:
public static EntityManager reserveEntityManager()
{
return emf.createEntityManager();
}
public static void open()
{
try
{
emf = Persistence.createEntityManagerFactory("manager1");
}
catch (Throwable e)
{
throw new ExceptionInInitializerError(e);
}
}
Code:
javax.persistence.OptimisticLockException: org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [WebOrganizer.classes.types.StringType#174]
at org.hibernate.ejb.AbstractEntityManagerImpl.wrapStaleStateException(AbstractEntityManagerImpl.java:646)
at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:600)
at org.hibernate.ejb.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:237)
at WebOrganizer.web.servlets.TypeServlet.test2(TypeServlet.java:356)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.testng.internal.MethodHelper.invokeMethod(MethodHelper.java:580)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:517)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:669)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:956)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:126)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:110)
at org.testng.TestRunner.runWorkers(TestRunner.java:720)
at org.testng.TestRunner.privateRun(TestRunner.java:590)
at org.testng.TestRunner.run(TestRunner.java:484)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:332)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:327)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:299)
at org.testng.SuiteRunner.run(SuiteRunner.java:204)
at org.testng.TestNG.createAndRunSuiteRunners(TestNG.java:864)
at org.testng.TestNG.runSuitesLocally(TestNG.java:830)
at org.testng.TestNG.run(TestNG.java:748)
at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:73)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:124)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:90)
Caused by: org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [WebOrganizer.classes.types.StringType#174]
at org.hibernate.event.def.DefaultMergeEventListener.entityIsDetached(DefaultMergeEventListener.java:261)
at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:120)
at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:53)
at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:677)
at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:661)
at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:665)
at org.hibernate.ejb.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:228)
... 28 more
Login
FAQ
Search
