Update ESRestTestCase's ROLLUP_REQUESTS_OPTIONS (#121335)

Sometimes there are multiple warning.

Author: martijnvg

test/framework/src/main/java/org/elasticsearch/test/rest/ESRestTestCase.java

@@ -169,14 +169,16 @@ public abstract class ESRestTestCase extends ESTestCase {
  private static final String EXPECTED_ROLLUP_WARNING_MESSAGE =
  "The rollup functionality will be removed in Elasticsearch 10.0. See docs for more information.";
  public static final RequestOptions.Builder ROLLUP_REQUESTS_OPTIONS = RequestOptions.DEFAULT.toBuilder().setWarningsHandler(warnings -> {
- // Either no warning, because of bwc integration test OR
- // the expected warning, because on current version
  if (warnings.isEmpty()) {
  return false;
- } else if (warnings.size() == 1 && EXPECTED_ROLLUP_WARNING_MESSAGE.equals(warnings.get(0))) {
- return false;
  } else {
- return true;
+ // Sometimes multiple rollup deprecation warnings. Transport actions can be invoked multiple time on different nodes.
+ for (String warning : warnings) {
+ if (EXPECTED_ROLLUP_WARNING_MESSAGE.equals(warning) == false) {
+ return true;
+ }
+ }
+ return false;
  }
  });