### Elasticsearch Version

8.5.0

### Installed Plugins

_No response_

### Java Version

_bundled_

### OS Version

Linux 9b4c50a443c1 5.15.0-52-generic #58-Ubuntu SMP Thu Oct 13 08:03:55 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

### Problem Description

In 8.5, _nodes/stats returns a failure message if the node has closed indices. In previous versions, it works.
Please see steps to reproduce.

### Steps to Reproduce

```
$ curl -XPUT http://localhost:9200/test_index
$ curl http://localhost:9200/_nodes/stats  # <- it works
$ curl -XPOST http://localhost:9200/test_index/_close
$ curl http://localhost:9200/_nodes/stats
{
  "_nodes": {
    "total": 1,
    "successful": 0,
    "failed": 1,
    "failures": [
      {
        "type": "failed_node_exception",
        "reason": "Failed node [...]",
        "node_id": "...",
        "caused_by": {
          "type": "null_pointer_exception",
          "reason": "Cannot invoke \"org.elasticsearch.index.mapper.MapperService.mappingLookup()\" because the return value of \"org.elasticsearch.index.IndexService.mapperService()\" is null"
        }
      }
    ]
  },
  "cluster_name": "...",
  "nodes": {}
}
```

### Logs (if relevant)

_No response_
server/src/main/java/org/elasticsearch/index/IndexService.java
this.indexSortSupplier = () -> null;
            this.bitsetFilterCache = null;
            this.warmer = null;
            this.indexCache = null;
        }
        this.shardStoreDeleter = shardStoreDeleter;
        this.indexFoldersDeletionListener = indexFoldersDeletionListener;
        this.bigArrays = bigArrays;
        this.threadPool = threadPool;
        this.scriptService = scriptService;
        this.clusterService = clusterService;
        this.client = client;
        this.eventListener = eventListener;
        this.nodeEnv = nodeEnv;
        this.directoryFactory = directoryFactory;
        this.recoveryStateFactory = recoveryStateFactory;
        this.engineFactory = Objects.requireNonNull(engineFactory);
        
        this.readerWrapper = wrapperFactory.apply(this);
        this.searchOperationListeners = Collections.unmodifiableList(searchOperationListeners);
        this.indexingOperationListeners = Collections.unmodifiableList(indexingOperationListeners);
        try (var ignored = threadPool.getThreadContext().clearTraceContext()) {
            
            this.refreshTask = new AsyncRefreshTask(this);
            this.trimTranslogTask = new AsyncTrimTranslogTask(this);
            this.globalCheckpointTask = new AsyncGlobalCheckpointTask(this);
            this.retentionLeaseSyncTask = new AsyncRetentionLeaseSyncTask(this);
        }
        updateFsyncTaskIfNecessary();
    }