ConcurrentModificationException with CMP

[mds939]

Hi
Iam using 3.2.4. Have a simple EntityBean CMP 2 spec. Trying to exercise the findAll method on the LocalHome interface in the bean. I get a ConcurrentModificationException thrown. Bean deploys fine and all.

ejb-jar.xml


<query-method>
<method-name>findAll</method-name>
<method-params/>
</query-method>
<ejb-ql>[CDATA[
SELECT OBJECT(g)
FROM GROUP_MODEL g
]]</ejb-ql>


try {
GroupLocalHome home = SubnetEntityHomeLookupUtils.getGroupLocalHome();

Collection col = home.findAll();
Iterator it = col.iterator();
while(it.hasNext()){
GroupLocal grp = (GroupLocal) it.next(); // Exception thrown here
}catch(Exception e) {}

Thanks,
-Sridhar

[aloubyansky]

This is not a JBoss-specific problem. Read the javadocs for the exception and look for the misuse in your code.

[mds939]

It is comforting to know it is not a JBOSS problem. Off hand I cant see any misuse in my code. But I will investigate further. Thanks for your response.

[mds939]

Yes it was a problem with my code. I was modifying the collection at the same time reading it within the same transaction. Thanks.