IBM BPM, V8.0.1, All platforms > Programming IBM BPM > Developing client applications for BPEL processes and tasks > Developing EJB client applications > Handling exceptions and faults
Handling Business Process Choreographer EJB API exceptions
If a method in the BusinessFlowManagerService interface or the HumanTaskManagerService interface does not complete successfully, an exception is thrown that denotes the cause of the error. You can handle this exception specifically to provide guidance to the caller.
However, it is common practice to handle only a subset of the exceptions specifically and to provide general guidance for the other potential exceptions. All specific exceptions inherit from a generic ProcessException or TaskException. Catch generic exceptions with a final catch(ProcessException) or catch(TaskException) statement. This statement helps to ensure the upward compatibility of your application program because it takes account of all of the other exceptions that can occur.