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https://issues.apache.org/jira/browse/OPENJPA-398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Catalina Wei resolved OPENJPA-398.
----------------------------------
Assignee: Catalina Wei
Fix Version/s: 2.1.0
Resolution: Duplicate
Duplicate of OPENJPA-641, and the problem is not reproducible.
Correction to testcase:
Query q = em.createQuery("SELECT a FROM A a WHERE a.name=:cName")
.setParameter(1, cName);
should be:
Query q = em.createQuery("SELECT a FROM A a WHERE a.name=:cName")
.setParameter("cName", cName);
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package org.apache.openjpa.persistence.kernel;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import org.apache.openjpa.persistence.kernel.common.apps.A;
import org.apache.openjpa.persistence.test.SingleEMFTestCase;
public class TestA641 extends SingleEMFTestCase {
private int cId;
private String cName = null;
public void setUp() throws Exception {
super.setUp(CLEAR_TABLES, A.class);
EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
// a
A a = new A("a");
em.persist(a);
// b
A b = new A("b");
b.setParent(a);
em.persist(b);
// c
A c = new A("c");
c.setParent(b);
em.persist(c);
em.getTransaction().commit();
cId = c.getId();
cName = c.getName();
em.close();
}
public void testOpenjpa641() {
EntityManager em = emf.createEntityManager();
//both methods of getting entity results in same error
A c = em.find(A.class, cId);
em.clear();
Query q = em.createQuery("SELECT a FROM A a WHERE a.name=:cName")
.setParameter("cName", cName);
A newC = (A)q.getSingleResult();
assertEquals(c.getName(), newC.getName());
em.close();
}
}
> ConcurrentModificationException at org.apache.openjpa.kernel.BrokerImpl
> -----------------------------------------------------------------------
>
> Key: OPENJPA-398
> URL: https://issues.apache.org/jira/browse/OPENJPA-398
> Project: OpenJPA
> Issue Type: Bug
> Components: kernel
> Affects Versions: 1.0.0, 1.0.1, 1.0.2, 1.1.0, 1.2.0
> Environment: JDK Sun 1.6.0.06 on Ubuntu
> Reporter: Alexander
> Assignee: Catalina Wei
> Priority: Critical
> Fix For: 2.1.0
>
>
> Hello.
>
> I'm trying to use OpenJPA in my project. I use Liferay based on Toncat as
> front-end.
> I use OpenJPA 1.0.0
> Today I have got strange exception -
> 10:35:55,785 ERROR ConcurrentModificationException at
> java.util.HashMap$HashIterator.nextEntry(HashMap.java:787) at
> java.util.HashMap$KeyIterator.next(HashMap.java:823) at
> org.apache.openjpa.kernel.BrokerImpl$ManagedCache.dirtyCheck(BrokerImpl.java:4612)
> at
> org.apache.openjpa.kernel.BrokerImpl$ManagedCache.access$000(BrokerImpl.java:4352)
> at
> org.apache.openjpa.kernel.BrokerImpl.hasTransactionalObjects(BrokerImpl.java:3731)
> at
> org.apache.openjpa.kernel.BrokerImpl.setDirty(BrokerImpl.java:3848) at
> org.apache.openjpa.kernel.StateManagerImpl.setPCState(StateManagerImpl.java:207)
> at
> org.apache.openjpa.kernel.StateManagerImpl.dirty(StateManagerImpl.java:1532)
> at
> org.apache.openjpa.kernel.StateManagerImpl.dirty(StateManagerImpl.java:1471)
> at
> org.apache.openjpa.kernel.StateManagerImpl.dirtyCheck(StateManagerImpl.java:808)
> at
> org.apache.openjpa.kernel.BrokerImpl$ManagedCache.dirtyCheck(BrokerImpl.java:4612)
> at
> org.apache.openjpa.kernel.BrokerImpl$ManagedCache.access$000(BrokerImpl.java:4352)
> at
> org.apache.openjpa.kernel.BrokerImpl.hasTransactionalObjects(BrokerImpl.java:3731)
> at
> org.apache.openjpa.kernel.BrokerImpl.setDirty(BrokerImpl.java:3848) at
> org.apache.openjpa.kernel.StateManagerImpl.setPCState(StateManagerImpl.java:207)
> at
> org.apache.openjpa.kernel.StateManagerImpl.dirty(StateManagerImpl.java:1532)
> at
> org.apache.openjpa.kernel.StateManagerImpl.dirty(StateManagerImpl.java:1471)
> at
> org.apache.openjpa.kernel.StateManagerImpl.dirtyCheck(StateManagerImpl.java:808)
> at
> org.apache.openjpa.kernel.BrokerImpl$ManagedCache.dirtyCheck(BrokerImpl.java:4612)
> at
> org.apache.openjpa.kernel.BrokerImpl$ManagedCache.access$000(BrokerImpl.java:4352)
>
> It happens only, when I deploy application on portal, and only when service
> is first-time accessed.
> All tests work fine.
>
> Exception throws in get method
> Transactions are managed by Spring and i use Spring agent.
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