### 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/test/java/org/elasticsearch/index/IndexServiceTests.java
}
        assertThat(translog.totalOperations(), equalTo(translogOps));
        assertThat(translog.stats().estimatedNumberOfOperations(), equalTo(translogOps));
        assertAcked(client().admin().indices().prepareClose("test"));
        indexService = getInstanceFromNode(IndicesService.class).indexServiceSafe(indexService.index());
        assertTrue(indexService.getTrimTranslogTask().mustReschedule());
        final Engine readOnlyEngine = getEngine(indexService.getShard(0));
        assertBusy(
            () -> assertThat(
                readOnlyEngine.getTranslogStats().getTranslogSizeInBytes(),
                equalTo((long) Translog.DEFAULT_HEADER_SIZE_IN_BYTES)
            )
        );
        assertAcked(client().admin().indices().prepareOpen("test"));
        indexService = getInstanceFromNode(IndicesService.class).indexServiceSafe(indexService.index());
        translog = IndexShardTestCase.getTranslog(indexService.getShard(0));
        assertThat(translog.totalOperations(), equalTo(0));
        assertThat(translog.stats().estimatedNumberOfOperations(), equalTo(0));
        assertThat(
            getEngine(indexService.getShard(0)).getTranslogStats().getTranslogSizeInBytes(),
            equalTo((long) Translog.DEFAULT_HEADER_SIZE_IN_BYTES)
        );
    }
    public void testIllegalFsyncInterval() {
        Settings settings = Settings.builder()
            .put(IndexSettings.INDEX_TRANSLOG_SYNC_INTERVAL_SETTING.getKey(), "0ms") 
            .build();
        try {
            createIndex("test", settings);
            fail();