code: public void initProcessDefinitionCache() {
      if (processDefinitionCache == null) {
        if (processDefinitionCacheLimit <= 0) {
          processDefinitionCache = new DefaultDeploymentCache<ProcessDefinitionCacheEntry>();
        } else {
          processDefinitionCache = new DefaultDeploymentCache<ProcessDefinitionCacheEntry>(processDefinitionCacheLimit);
        }
      }
    }
docs: ////////////////////////////////////////////////////////////////