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Posted to dev@openjpa.apache.org by "Alexander (JIRA)" <ji...@apache.org> on 2007/10/10 14:14:50 UTC
[jira] Created: (OPENJPA-398) ConcurrentModificationException at
org.apache.openjpa.kernel.BrokerImpl
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
Reporter: Alexander
Priority: Critical
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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[jira] Resolved: (OPENJPA-398) ConcurrentModificationException at
org.apache.openjpa.kernel.BrokerImpl
Posted by "Catalina Wei (JIRA)" <ji...@apache.org>.
[ 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);
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
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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$000(BrokerImpl.java:4352)
>
> It happens only, when I deploy application on portal, and only when service is first-time accessed.
> All tests work fine.
>
> Exception throws in get method
> Transactions are managed by Spring and i use Spring agent.
--
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You can reply to this email to add a comment to the issue online.
[jira] Commented: (OPENJPA-398) ConcurrentModificationException at
org.apache.openjpa.kernel.BrokerImpl
Posted by "Pål GD (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OPENJPA-398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12607107#action_12607107 ]
Pål GD commented on OPENJPA-398:
--------------------------------
Do you have a reference in the class you're accessing to an object of the same class?
This mail to the users list explains how to reproduce. This error also affects 1.1.0!
http://mail-archives.apache.org/mod_mbox/openjpa-users/200806.mbox/%3C8F5D4C634753484685F8A5F5F38757002A483A9282@Mailserver1.tecwel.local%3E
> ConcurrentModificationException at org.apache.openjpa.kernel.BrokerImpl
> -----------------------------------------------------------------------
>
> Key: OPENJPA-398
> URL: https://issues.apache.org/jira/browse/OPENJPA-398
> Project: OpenJPA
> Issue Type: Bug
> Components: kernel
> Affects Versions: 1.0.0
> Reporter: Alexander
> Priority: Critical
>
> Hello.
>
> I'm trying to use OpenJPA in my project. I use Liferay based on Toncat as front-end.
> I use OpenJPA 1.0.0
> Today I have got strange exception -
> 10:35:55,785 ERROR ConcurrentModificationException at java.util.HashMap$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$000(BrokerImpl.java:4352)
>
> It happens only, when I deploy application on portal, and only when service is first-time accessed.
> All tests work fine.
>
> Exception throws in get method
> Transactions are managed by Spring and i use Spring agent.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Updated: (OPENJPA-398) ConcurrentModificationException at
org.apache.openjpa.kernel.BrokerImpl
Posted by "Pål GD (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OPENJPA-398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Pål GD updated OPENJPA-398:
---------------------------
Affects Version/s: 1.0.1
1.0.2
1.1.0
Affects 1.0.2. and 1.1.0
> ConcurrentModificationException at org.apache.openjpa.kernel.BrokerImpl
> -----------------------------------------------------------------------
>
> Key: OPENJPA-398
> URL: https://issues.apache.org/jira/browse/OPENJPA-398
> Project: OpenJPA
> Issue Type: Bug
> Components: kernel
> Affects Versions: 1.0.0, 1.0.1, 1.0.2, 1.1.0
> Reporter: Alexander
> Priority: Critical
>
> Hello.
>
> I'm trying to use OpenJPA in my project. I use Liferay based on Toncat as front-end.
> I use OpenJPA 1.0.0
> Today I have got strange exception -
> 10:35:55,785 ERROR ConcurrentModificationException at java.util.HashMap$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$000(BrokerImpl.java:4352)
>
> It happens only, when I deploy application on portal, and only when service is first-time accessed.
> All tests work fine.
>
> Exception throws in get method
> Transactions are managed by Spring and i use Spring agent.
--
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-
You can reply to this email to add a comment to the issue online.
[jira] Commented: (OPENJPA-398) ConcurrentModificationException at
org.apache.openjpa.kernel.BrokerImpl
Posted by "Michael Dick (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OPENJPA-398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12635384#action_12635384 ]
Michael Dick commented on OPENJPA-398:
--------------------------------------
Hi Heiko, if you have a testcase available and can attach it to the issue that would help greatly.
> ConcurrentModificationException at org.apache.openjpa.kernel.BrokerImpl
> -----------------------------------------------------------------------
>
> Key: OPENJPA-398
> URL: https://issues.apache.org/jira/browse/OPENJPA-398
> Project: OpenJPA
> Issue Type: Bug
> Components: kernel
> Affects Versions: 1.0.0, 1.0.1, 1.0.2, 1.1.0, 1.2.0
> Environment: JDK Sun 1.6.0.06 on Ubuntu
> Reporter: Alexander
> Priority: Critical
>
> Hello.
>
> I'm trying to use OpenJPA in my project. I use Liferay based on Toncat as front-end.
> I use OpenJPA 1.0.0
> Today I have got strange exception -
> 10:35:55,785 ERROR ConcurrentModificationException at java.util.HashMap$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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You can reply to this email to add a comment to the issue online.
[jira] Commented: (OPENJPA-398) ConcurrentModificationException at
org.apache.openjpa.kernel.BrokerImpl
Posted by "Heiko (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OPENJPA-398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12635260#action_12635260 ]
Heiko commented on OPENJPA-398:
-------------------------------
Hi!
I see exactly the same behaviour as described in this bug on 1.2.0.
And yes, in my case, there is a reference to an object of the same class. It's a tree of objects. Each object has a @ManyToOne relationship to its parent and a @OneToMany relationship to its children. Parents and children are objects of the same class.
This exception appears, when I try to add a child to the tree (add-operation on the java.util.List of children).
The exception doesn't occur in the first or second level of the hierarchy, only on deeper levels.
To test, wether concurrency is involved or not, I set openjpa.Multithreaded to true, but I got the same exception.
Apart from that, I'm pretty sure, that there is only one thread.
Using plain JPA in a Swing application (no Spring,...).
I can make a short example, if it is of interest for you.
> 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
> Reporter: Alexander
> Priority: Critical
>
> 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$000(BrokerImpl.java:4352)
>
> It happens only, when I deploy application on portal, and only when service is first-time accessed.
> All tests work fine.
>
> Exception throws in get method
> Transactions are managed by Spring and i use Spring agent.
--
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You can reply to this email to add a comment to the issue online.
[jira] Updated: (OPENJPA-398) ConcurrentModificationException at
org.apache.openjpa.kernel.BrokerImpl
Posted by "Heiko (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OPENJPA-398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Heiko updated OPENJPA-398:
--------------------------
Environment: JDK Sun 1.6.0.06 on Ubuntu
Affects Version/s: 1.2.0
> ConcurrentModificationException at org.apache.openjpa.kernel.BrokerImpl
> -----------------------------------------------------------------------
>
> Key: OPENJPA-398
> URL: https://issues.apache.org/jira/browse/OPENJPA-398
> Project: OpenJPA
> Issue Type: Bug
> Components: kernel
> Affects Versions: 1.0.0, 1.0.1, 1.0.2, 1.1.0, 1.2.0
> Environment: JDK Sun 1.6.0.06 on Ubuntu
> Reporter: Alexander
> Priority: Critical
>
> Hello.
>
> I'm trying to use OpenJPA in my project. I use Liferay based on Toncat as front-end.
> I use OpenJPA 1.0.0
> Today I have got strange exception -
> 10:35:55,785 ERROR ConcurrentModificationException at java.util.HashMap$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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