Get index by alias java api

Elastic Stack Elasticsearch
3

My code is:

		// get name of the current index where the alias is active
		GetAliasesResponse r = client.admin().indices().getAliases(new GetAliasesRequest().aliases("YOUR_ALIAS")).get();

		for(Iterator<String> it = r.getAliases().keysIt(); it.hasNext();) {
			// HERE IS THE REALINDEXNAME
			String realIndexName = it.next();
		}