code: @Override
      public void unRegisterEvents(String handlerName) {
  
          if (handlerEventsMap.containsKey(handlerName)) {
  
              if (handlerEventsMap.size() == 1) {
                  auditStopped(null);
              }
  
              handlerEventsMap.remove(handlerName);
          }
  
          if (tc.isDebugEnabled()) {
              Tr.debug(tc, "handlerEventsMap: " + handlerEventsMap.toString());
          }
      }
docs: /*
  (non-Javadoc)
  
  @see com.ibm.wsspi.security.audit.AuditService#registerEvents()