How to Search Freeze Index using Java High Level REST Client

@dadoonet
Excuse me, I was missing words.

I meant that a standard search should work then, no?

→In Freeze Index API, I could read that I could freeze the index but not search.

I know that you can get a frozen index by granting 「ignore_throttled=false 」by Search API .

When I checked the following, it was described that there was a bug and it was reflected from 7.1 OR 6.8.

If you are using 6.7.1, is it the only way to upgrade?