I am getting the following exception when accessing a one - many CMR in a session bean:
java.lang.IllegalStateException: A CMR collection may only be used wit
hin the transction in which it was created
at org.jboss.ejb.plugins.cmp.jdbc.bridge.RelationSet.getIdList
(RelationSet.java:58)
at org.jboss.ejb.plugins.cmp.jdbc.bridge.RelationSet.iterator(
RelationSet.java:260)
at com.centric.intranet.ejb.session.impl.UserServiceBean.getUs
erAndContactDetails(UserServiceBean.java:135)
at java.lang.reflect.Method.invoke(Native Method)
at org.jboss.ejb.StatelessSessionContainer$ContainerIntercepto
r.invoke(StatelessSessionContainer.java:660)
at org.jboss.resource.connectionmanager.CachedConnectionInterc
eptor.invoke(CachedConnectionInterceptor.java:186)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(Abst
ractTxInterceptor.java:107)
at org.jboss.ejb.plugins.AbstractTxInterceptorBMT.invokeNext(A
bstractTxInterceptorBMT.java:144)
at org.jboss.ejb.plugins.TxInterceptorBMT.invoke(TxInterceptor
BMT.java:62)
at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.i

I have a UserEJB and PhoneEJB and a user can have many phones. I have a getUserAndContactDetails method in a stateless session bean where I get the user ejb and then get the telephones. Here is the code snippet:
User user = CentricIntranetUtils.getUserHome().findByUserName(aUserId);

Iterator mIter = user.getTelephones().iterator();
log.debug("Telephones Retrieved");
if(user.getTelephones() != null && user.getTelephones().size() > 0)
{
Vector phones = new Vector();
while(mIter.hasNext())
{
Phone mPhone = (Phone) mIter.next();
PhoneNumberValue mPhoneVal = mPhone.getPhoneDetails();
phones.addElement(mPhoneVal);
}
mUser.setTelephones(phones);
}

I have read all the previous messages regarding this problem and set the transaction attributes correctly in ejb-jar.xml.
<assembly-descriptor>
<container-transaction>

<ejb-name>UserEJB</ejb-name>
<method-name>*</method-name>


<ejb-name>UserServiceEJB</ejb-name>
<method-name>*</method-name>


<ejb-name>PhoneEJB</ejb-name>
<method-name>*</method-name>


<ejb-name>AddressEJB</ejb-name>
<method-name>*</method-name>

<trans-attribute>Required</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserServiceEJB</ejb-name>
<method-name>*</method-name>

<trans-attribute>Required</trans-attribute>
</container-transaction>
</assembly-descriptor>

I tried with starting a user transaction and retrieving the telephones within the tranx and it works fine. I dont understand why the session bean's method is not included in a transaction even though the transaction attribute is set to Required.

Any help is appreciated.

Thanks