Infinispan 14 supporting duplicates on multimap

public class MyEmbeddedMultimapCacheExmaple {

public static void main(String[] args) {
      DefaultCacheManager cacheManager = new DefaultCacheManager();

      MultimapCacheManager multimapCacheManager = EmbeddedMultimapCacheManagerFactory.from(cacheManager);

      multimapCacheManager.defineConfiguration("multimap", new ConfigurationBuilder().build());

      // Get the MultimapCache with duplicates support
      MultimapCache<String, String> multimap = multimapCacheManager.get("multimap", true);

      // Store duplicate values in a key
      CompletableFuture.allOf(
            multimap.put("key", "value1"),
            multimap.put("key", "value1"),
            multimap.put("key", "value3"))
            .whenComplete((nil, ex) -> {
               // Retrieve the values
               multimap.get("key").whenComplete((values, ex2) -> {
                  // Print them out
                  System.out.println(values);

                  System.out.println("Multimap size:" + values.size());
                  // Stop the cache manager and release all resources
                  cacheManager.stop();
               });
            });
   }
}

[value1, value1, value3]
Multimap size: 3