NPE when trying to use it

[fstocker1]

When I tried I get an NPE

Refresh rate set to: PT30S monitoring ilos: [192.168.150.63] using credentials: Credentials [username=root, password=********] Exception in thread "main" java.lang.ExceptionInInitializerError Caused by: com.google.common.util.concurrent.UncheckedExecutionException: java.lang.NullPointerException at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2051) at com.google.common.cache.LocalCache.get(LocalCache.java:3953) at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3976) at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4960) at ilo.IloCollector.collect(IloCollector.java:66) at io.prometheus.client.CollectorRegistry.collectorNames(CollectorRegistry.java:100) at io.prometheus.client.CollectorRegistry.register(CollectorRegistry.java:50) at io.prometheus.client.Collector.register(Collector.java:139) at io.prometheus.client.Collector.register(Collector.java:132) at ilo.IloExporter.<clinit>(IloExporter.java:8) Caused by: java.lang.NullPointerException at ilo.StorageClient.getArrays(StorageClient.java:33) at ilo.StorageClient.getStorageNode(StorageClient.java:46) at ilo.IloHttpClient.getStorageNode(IloHttpClient.java:133) at ilo.IloHttpClient.getSystemNode(IloHttpClient.java:116) at ilo.IloHttpClient.getChassisNode(IloHttpClient.java:76) at ilo.IloCollector$1.load(IloCollector.java:47) at ilo.IloCollector$1.load(IloCollector.java:43) at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3529) at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2278) at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2155) at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2045) ... 9 more
so it's supposedly at this line:
for (JsonNode arrayMember : arrayControllers.get("links").get("Member")) {

(I guess there is no "links" in my situation and therefore the .get("Member") throws the NPE.

Got a good workaround for this ?

Thanks for your help