docs: public void startWithoutExecuting(Map<String, Object> variables) {
      initialize();
      initializeTimerDeclarations();
      fireHistoricProcessStartEvent();
      performOperation(PvmAtomicOperation.FIRE_PROCESS_START);
  
      setActivity(null);
      setActivityInstanceId(getId());
  
      // set variables
      setVariables(variables);
    }