I have Java program and I want to use HEC indexer acknowledgement to get confirmation that the event has hit the index.
Are there any libraries which support this or will I need to implement my own classes to talk directly to the relevant end-points over HTTP?
I have seen no ack implementations. Doing that is really on the developer. And it requires specific configurations in the splunk environment to support it. You will have to coordinate it with your splunk admin.