[ERROR][com.floragunn.searchguard.filter.SearchGuardActionFilter] Error while apply() due to java.lang.NullPointerException for action indices:monitor/stats

Elastic Stack Elasticsearch
1 
This is my ElasticSearch version:

curl --cacert /etc/elasticsearch/secret/admin-ca --key /etc/elasticsearch/secret/admin-key --cert /etc/elasticsearch/secret/admin-cert https://localhost:9200/
{
  "status" : 200,
  "name" : "Human Robot",
  "cluster_name" : "logging-es",
  "version" : {
    "number" : "1.5.2",
    "build_hash" : "62ff9868b4c8a0c45860bebb259e21980778ab1c",
    "build_timestamp" : "2015-04-27T09:21:06Z",
    "build_snapshot" : false,
    "lucene_version" : "4.10.4"
  },
  "tagline" : "You Know, for Search"
}

Cluster status is green:

bash-4.2$ curl --cacert /etc/elasticsearch/secret/admin-ca --key /etc/elasticsearch/secret/admin-key --cert /etc/elasticsearch/secret/admin-cert https://localhost:9200/_cat/health?v
epoch      timestamp cluster    status node.total node.data shards pri relo init unassign pending_tasks
1487601133 14:32:13  logging-es green           1         1      2   2    0    0        0             0

If I try to list indices and I have one error:

bash-4.2$ curl --cacert /etc/elasticsearch/secret/admin-ca --key /etc/elasticsearch/secret/admin-key --cert /etc/elasticsearch/secret/admin-cert https://localhost:9200/_cat/indices/
{"error":"RuntimeException[java.lang.NullPointerException]; nested: NullPointerException; ","status":500}bash-4.2$

This ElasticSearch log content:

[2017-02-20 13:55:28,765][ERROR][com.floragunn.searchguard.filter.SearchGuardActionFilter] Error while apply() due to java.lang.NullPointerException for action indices:monitor/stats
java.lang.NullPointerException
    at java.util.Objects.requireNonNull(Objects.java:203)
    at java.util.Arrays$ArrayList.<init>(Arrays.java:3813)
    at java.util.Arrays.asList(Arrays.java:3800)
    at com.floragunn.searchguard.filter.SearchGuardActionFilter.apply0(SearchGuardActionFilter.java:191)
    at com.floragunn.searchguard.filter.SearchGuardActionFilter.apply(SearchGuardActionFilter.java:90)
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:165)
    at com.floragunn.searchguard.filter.FLSActionFilter.applySecure(FLSActionFilter.java:76)
    at com.floragunn.searchguard.filter.AbstractActionFilter.apply(AbstractActionFilter.java:97)
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:165)
    at com.floragunn.searchguard.filter.DLSActionFilter.applySecure(DLSActionFilter.java:73)
    at com.floragunn.searchguard.filter.AbstractActionFilter.apply(AbstractActionFilter.java:97)
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:165)
    at com.floragunn.searchguard.filter.RequestActionFilter.applySecure(RequestActionFilter.java:94)
    at com.floragunn.searchguard.filter.AbstractActionFilter.apply(AbstractActionFilter.java:97)
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:165)
    at org.elasticsearch.action.support.ActionFilter$Simple.apply(ActionFilter.java:64)
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:165)
    at io.fabric8.elasticsearch.plugin.ActionForbiddenActionFilter.apply(ActionForbiddenActionFilter.java:48)
    at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:165)
    at org.elasticsearch.action.support.TransportAction.execute(TransportAction.java:82)
    at org.elasticsearch.client.node.NodeIndicesAdminClient.execute(NodeIndicesAdminClient.java:77)
    at org.elasticsearch.client.FilterClient$IndicesAdmin.execute(FilterClient.java:120)
    at org.elasticsearch.rest.BaseRestHandler$HeadersAndContextCopyClient$IndicesAdmin.execute(BaseRestHandler.java:149)
    at org.elasticsearch.client.support.AbstractIndicesAdminClient.stats(AbstractIndicesAdminClient.java:524)
    at org.elasticsearch.rest.action.cat.RestIndicesAction$1$1.processResponse(RestIndicesAction.java:83)
    at org.elasticsearch.rest.action.cat.RestIndicesAction$1$1.processResponse(RestIndicesAction.java:78)
    at org.elasticsearch.rest.action.support.RestActionListener.onResponse(RestActionListener.java:49)
    at org.elasticsearch.action.support.TransportAction$ThreadedActionListener$1.run(TransportAction.java:113)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

What is my mistake ?

Best regards,
Stéphane

2

Looks like a problem with searchguard, you will need to approach the author of that plugin directly.