private void cancelLease(Lease lease){
  try {
    leaseRenewalMgr.cancel(lease);
  }
 catch (  Exception e) {
    logger.log(Level.FINER,"exception occurred while cancelling an event " + "registration lease",e);
  }
}

private void cancelLease ( Lease lease ) { try { leaseRenewalMgr . cancel ( lease ) ; } catch ( Exception e ) { logger . log ( Level . FINER , "exception occurred while cancelling an event " + "registration lease" , e ) ; } }
cancels the given event lease .
