code: public void setFolderList(java.util.Collection<String> folderList) {
          if (folderList == null) {
              this.folderList = null;
              return;
          }
  
          this.folderList = new com.amazonaws.internal.SdkInternalList<String>(folderList);
      }
docs: <p>
  A comma-separated list of the paths of folders to refresh in the cache. The default is [<code>"/"</code>]. The
  default refreshes objects and folders at the root of the Amazon S3 bucket. If <code>Recursive</code> is set to
  "true", the entire S3 bucket that the file share has access to is refreshed.
  </p>
  
  @param folderList
  A comma-separated list of the paths of folders to refresh in the cache. The default is [<code>"/"</code>].
  The default refreshes objects and folders at the root of the Amazon S3 bucket. If <code>Recursive</code>
  is set to "true", the entire S3 bucket that the file share has access to is refreshed.