San Diego - Network Switch pattern error: ServiceWatchProbe - java.lang.NullPointerException - Known Error

San Diego - Network Switch pattern error: ServiceWatchProbe - java.lang.NullPointerException Description San Diego - Network Switch pattern error: ServiceWatchProbe - java.lang.NullPointerException

Steps to Reproduce

Run discovery to a stacked switch. If below condition matches: - The pattern retrieves large amount of data and payload shall be splitted into multi-page inputs - IP Address of the slave switch is empty Then the input ECC of the pattern probe has error:

[ &amp;quot;SN-1053&amp;quot;, &amp;quot;com.snc.sw.exception.DefaultException&amp;quot; ],&amp;#13;&amp;#10; &amp;quot;fullStackTrace&amp;quot; : &amp;quot;com.snc.sw.exception.UnknownException: Internal error. null\r\n\tat com.snc.sw.discovery.AbstractDiscoveryResults.&amp;lt;init&amp;gt;(AbstractDiscoveryResults.java:35)\r\n\tat com.snc.sw.discovery.DiscoveryResult.&amp;lt;init&amp;gt;(DiscoveryResult.java:52)\r\n\tat com.service_now.mid.probe.ServiceWatchProbe.probe(ServiceWatchProbe.java:38)\r\n\tat com.service_now.mid.probe.AProbe.process(AProbe.java:106)\r\n\tat com.service_now.mid.queue_worker.AWorker.runWorker(AWorker.java:128)\r\n\tat com.service_now.mid.queue_worker.AWorkerThread.run(AWorkerThread.java:20)\r\n\tat com.service_now.mid.threadpool.ResourceUserQueue$RunnableProxy.run(ResourceUserQueue.java:649)\r\n\tat java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)\r\n\tat java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)\r\n\tat java.base/java.lang.Thread.run(Thread.java:829)\r\nCaused by: java.lang.NullPointerException\r\n&amp;

Workaround Open pattern Network Switch. Under Extension Section click on New button to create a new entry.

In the pattern, create step using operation Transform Table.

In value field, type in EVAL(), then click on edit then paste in below:

var result =''; var currentIP = ${cmdb_ci_ip_switch[].ip_address}; if (currentIP == '' || currentIP == 'null' || currentIP == null) { result = ''; } else { result = currentIP; }

var rtrn = result;

Save the pattern.