7.0 bean - 6.1 bean

Is there anything special I need to do to have a 7.0 CMP session bean call a 6.1
SP3 CMP session bean? Additionally, I'll need to go the other way too.
I appreciate any help.
Thanks.
Dan

No, 6.1 <--> 7.0 calls should work fine.
There's more info here:
http://edocs.bea.com/wls/docs70/compatibility/compatibility.html
-- Rob
Dan Baumbach wrote:
Is there anything special I need to do to have a 7.0 CMP session bean call a 6.1
SP3 CMP session bean? Additionally, I'll need to go the other way too.
I appreciate any help.
Thanks.
Dan

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javax.ejb.TransactionRolledbackLocalException: EJB Exception:
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[javax.ejb.EJBException
- with nested exception:
[weblogic.transaction.RollbackException: Unexpected exception in beforeCompletion:
sync=weblogic.ejb20.internal.TxManager$TxListener@1c2906 - with nested exception:
[java.util.ConcurrentModificationException]]]
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java.rmi.RemoteException: EJB Exception: ; nested exception is:
     javax.ejb.TransactionRolledbackLocalException: EJB Exception:
- with nested exception:
[javax.ejb.EJBException
- with nested exception:
[weblogic.transaction.RollbackException: Unexpected exception in beforeCompletion:
sync=weblogic.ejb20.internal.TxManager$TxListener@1c2906 - with nested exception:
[java.util.ConcurrentModificationException]]]
java.util.ConcurrentModificationException
     at java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:535)
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     at weblogic.ejb20.internal.TxManager$TxListener.beforeCompletion(TxManager.java:481)
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     at weblogic.transaction.internal.ServerTransactionImpl.internalCommit(ServerTransactionImpl.java:216)
     at weblogic.transaction.internal.ServerTransactionImpl.commit(ServerTransactionImpl.java:190)
     at weblogic.ejb20.internal.BaseEJBLocalObject.postInvoke(BaseEJBLocalObject.java:207)
     at com.takecargo.domainentities.role.RoleBean_1ipw6_ELOImpl.getName(RoleBean_1ipw6_ELOImpl.java:86)
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Brynjar Glesnes

WLS support NotSupported on Entity Beans.
It looks like you've hit a bug in the EJB container where an internal Collection class has been modified while the
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-- Rob
Brynjar Glesnes wrote:
Hi,
I have created two bean managed entity beans, User and Role, abstracting users
and groups in a ldap base. A User may have more than one Role. This is represented
by a (bean managed) 1:many relationship directed from User to Role. For some weird
reasons I get a transaction rollback when reading data, when transactions are
turned on (REQUIRED).
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isn't allowed anymore by the WLS. I know that NOTSUPPORTED isn't required by the
EJB spec, but containers may support it and obviously WLS used to do just that.
I have not seen any change in the release notes of sp2 that indicates that this
behaviour has changed.
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in sp2?
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javax.ejb.TransactionRolledbackLocalException: EJB Exception:
- with nested exception:
[javax.ejb.EJBException
- with nested exception:
[weblogic.transaction.RollbackException: Unexpected exception in beforeCompletion:
sync=weblogic.ejb20.internal.TxManager$TxListener@1c2906 - with nested exception:
[java.util.ConcurrentModificationException]]]
Start server side stack trace:
java.rmi.RemoteException: EJB Exception: ; nested exception is:
javax.ejb.TransactionRolledbackLocalException: EJB Exception:
- with nested exception:
[javax.ejb.EJBException
- with nested exception:
[weblogic.transaction.RollbackException: Unexpected exception in beforeCompletion:
sync=weblogic.ejb20.internal.TxManager$TxListener@1c2906 - with nested exception:
[java.util.ConcurrentModificationException]]]
java.util.ConcurrentModificationException
at java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:535)
at java.util.LinkedList$ListItr.next(LinkedList.java:476)
at weblogic.ejb20.manager.DBManager.beforeCompletion(DBManager.java:370)
at weblogic.ejb20.internal.TxManager$TxListener.beforeCompletion(TxManager.java:481)
at weblogic.transaction.internal.ServerSCInfo.callBeforeCompletions(ServerSCInfo.java:551)
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at weblogic.transaction.internal.ServerTransactionImpl.localPrePrepareAndChain(ServerTransactionImpl.java:980)
at weblogic.transaction.internal.ServerTransactionImpl.globalPrePrepare(ServerTransactionImpl.java:1504)
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at weblogic.transaction.internal.ServerTransactionImpl.commit(ServerTransactionImpl.java:190)
at weblogic.ejb20.internal.BaseEJBLocalObject.postInvoke(BaseEJBLocalObject.java:207)
at com.takecargo.domainentities.role.RoleBean_1ipw6_ELOImpl.getName(RoleBean_1ipw6_ELOImpl.java:86)
at com.takecargo.domainentities.role.RoleConverter.getVOforRoleLocal(RoleConverter.java:51)
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Regards,
Brynjar Glesnes

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No new Session Bean was created or modified when the application failed to load. I only added a dependency that ties project ModelEJBOne to project ModelEJBTwo when it failed to load.

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