[jboss-user] [JBoss Seam] - ConcurrentModificationException

[bluetrade]

Hi, 
I am getting a ConcurrentModificationException which I cannot really resolve, maybe someone has some hints...

I have the following:

  | @Stateful
  | @Name("accBroker")
  | @Scope(CONVERSATION)
  | @LoggedIn
  | public class AccountBrokerBean implements AccountBroker{
  |    
  | @In(create=true)
  | 	private EntityManager em;
  | 	
  | 	@In(value="securityBroker",create=true)
  | 	private SecurityBroker securityBroker;
  | 
  | @In
  | User user;
  | 
  |    @Begin(join=true)
  | public void find() {
  |   List<Accounts> accounts = em.createQuery("from Account");
  |   securityBroker.filter(user,accounts);
  | 
  | }
  | ...
  | @Stateful
  | @Name("securityBroker")
  | @Scope(CONVERSATION)
  | @LoggedIn
  | public class SecurityBrokerBean implements SecurityBroker{
  | 
  | @In(create=true)
  | 	private EntityManager em;
  | 
  | public void filter(User u, Collection<Accounts> accounts) {
  |  for (Account a : accounts) {
  |   if (accounts.notAccessibleBy(user) {
  |      accounts.remove(a);
  |    } else if (accounts.accessibleBy(user) {
  |     continue;
  |   } else {
  |    accounts.remove(a);
  |  }
  | }
  | 
  | }
  | 
  | ...
  | 

I get the CME somehere in the filter method...
Any clues? 

Thanks, 
Joey

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