[Hibernate-issues] [Hibernate-JIRA] Commented: (HB-339) java.util.ConcurrentModificationException

[<leg...@at...>]

The following comment has been added to this issue:

     Author: jason zhang
    Created: Thu, 18 Sep 2003 1:46 AM
       Body:
First there is no this problem if I use hibernate 2.0. 
In my system, I can reproduce this problem consistently. I just can not set up a simple system to reproduce this problem. I can not just send my system to you since it has tons of code.

Let me try to see whether I can create a simple case to reproduce this problem or not.

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Here is an overview of the issue:
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        Key: HB-339
    Summary: java.util.ConcurrentModificationException
       Type: Bug

     Status: Unassigned
   Priority: Major

    Project: Hibernate2
 Components: 
             core
   Versions:
             2.1 beta 3

   Assignee: 
   Reporter: jason zhang

    Created: Wed, 17 Sep 2003 1:59 AM
    Updated: Wed, 17 Sep 2003 1:59 AM
Environment: Window 2000 professional, JVM 1.4, oracle 9

Description:
There is no any problem if the same test case is run with hibernate 2.0. But it does not work with hibernate 2.1 beta 3b. 

14:46:56,891 ERROR PersistentCollection:157 - Failed to lazily initialize a collection
java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.remove(HashMap.java:781)
	at net.sf.hibernate.impl.SessionImpl.endLoadingCollections(SessionImpl.java:3015)
	at net.sf.hibernate.loader.Loader.doResultSet(Loader.java:224)
	at net.sf.hibernate.loader.Loader.doFind(Loader.java:113)
	at net.sf.hibernate.loader.Loader.loadCollection(Loader.java:720)
	at net.sf.hibernate.loader.Loader.loadCollection(Loader.java:703)
	at net.sf.hibernate.loader.OneToManyLoader.initialize(OneToManyLoader.java:74)
	at net.sf.hibernate.impl.SessionImpl.initialize(SessionImpl.java:3143)
	at net.sf.hibernate.collection.PersistentCollection.initialize(PersistentCollection.java:154)
	at net.sf.hibernate.collection.PersistentCollection.read(PersistentCollection.java:63)
	at net.sf.hibernate.collection.Set.iterator(Set.java:132)
	....
caused by: java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.remove(HashMap.java:781)
	at net.sf.hibernate.impl.SessionImpl.endLoadingCollections(SessionImpl.java:3015)
	at net.sf.hibernate.loader.Loader.doResultSet(Loader.java:224)
	at net.sf.hibernate.loader.Loader.doFind(Loader.java:113)
	at net.sf.hibernate.loader.Loader.loadCollection(Loader.java:720)
	at net.sf.hibernate.loader.Loader.loadCollection(Loader.java:703)
	at net.sf.hibernate.loader.OneToManyLoader.initialize(OneToManyLoader.java:74)
	at net.sf.hibernate.impl.SessionImpl.initialize(SessionImpl.java:3143)
	at net.sf.hibernate.collection.PersistentCollection.initialize(PersistentCollection.java:154)
	... 30 more



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