* @param sourceExceptionHandler Exception handler of the source actor.
*/
private void syncSendEvent(final RequestSource rs, final Request request,
final ExceptionHandler sourceExceptionHandler) {
final Mailbox oldSourceMailbox = rs.getMailbox();
final JARequest oldSourceRequest = oldSourceMailbox.getCurrentRequest();
final JAEventRequest jaRequest = new JAEventRequest(rs, this, request,
mailbox);
mailbox.setCurrentRequest(jaRequest);
try {
setExceptionHandler(null);