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When setRollbackOnly() is Called in beforeCompletion() Synchronization Method , Thrown Exception Cannot be Obtained (Doc ID 1547327.1)

Last updated on MARCH 28, 2024

Applies to:

Oracle WebLogic Server - Version and later
Information in this document applies to any platform.


Transaction manager supports  synchronization mechanism.
This allows  JPA providers   (for instance EclipseLink or  Hibernate) to be notified  before and after a transaction completes
by registering a Synchronization object which implements javax.transaction.Synchronization Interface.
Here is a sample code showing how to register a Synchronization object (TestcaseJtaCallback):

In beforeCompletion method , if an exception occurs,  in the sample code above, the following treatment done is :  
     -  rollback the transaction  ( t.setRollbackOnly())
     - and,  throw the RollbackTestcaseException exception .

When invoking an EJB , if this Synchorization mechanism is used,
and if the setRollbackOnly ()  method is called in the beforeCompletion()  method because of an error,
then the EJB caller will receive  the javax.ejb.TransactionRolledbackLocalException exception .
The problem is that the exception which is thrown (RollbackTestcaseException) is not propagated :
the  javax.ejb.TransactionRolledbackLocalException  Exception, which   is  received by the EJB caller, does not     
contain  the exception cause (RollbackTestcaseException).
As a consequence , there is no way for the EJB caller  to obtain the cause of the error which can happen in the beforeCompletion() method .

The expected  behavior  is to be able to obtain the thrown exception  (embedded in TransactionRolledbackLocalException exception) from  beforeCompletion() method .




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