docs: @Bean
      public Config hazelcastConfig() {
          MapConfig mapConfig = new MapConfig("spring-boot-admin-event-store").setInMemoryFormat(InMemoryFormat.OBJECT)
                                                                              .setBackupCount(1)
                                                                              .setEvictionPolicy(EvictionPolicy.NONE)
                                                                              .setMergePolicyConfig(new MergePolicyConfig(
                                                                                  PutIfAbsentMapMergePolicy.class.getName(),
                                                                                  100
                                                                              ));
          return new Config().setProperty("hazelcast.jmx", "true").addMapConfig(mapConfig);
      }