@Override
  public Set entrySet(boolean recursive) {
    checkReadiness();
    checkForNoAccess();
    if (!restoreSetOperationTransactionBehavior) {
      discoverJTA();
    }
    return basicEntries(recursive);
  }
a variant of subregions() that does not perform a readiness check
geode-core/src/main/java/org/apache/geode/internal/cache/LocalRegion.java