[embjopr-issues] [JBoss JIRA] (EMBJOPR-367) subtype=QueueManage temporarily disappears from ManagementView compByCompType resulting in "There are currently no numeric metrics available." being displayed on JMS Manager/JMS Queues/* metric page

subtype=QueueManage temporarily disappears from ManagementView compByCompType resulting in "There are currently no numeric metrics available." being displayed on JMS Manager/JMS Queues/* metric page ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Key: EMBJOPR-367 URL: https://issues.jboss.org/browse/EMBJOPR-367 Project: Embedded Jopr Issue Type: Bug Components: Plugin Affects Versions: 1.3.4 Environment: JBoss EAP 5.1.2 with HornetQ installed using the *all* server profile Reporter: Larry O'Leary Priority: Critical Labels: admin-console, jon, jopr, rhq Attachments: failed.log, screenshot1.png Very frequently, the metrics for a queue will fail to be loaded due to the managed component type that represents a queue being dropped from ProfileSerivce's component type list. The result is the admin-consle displays the following message (see screenshot1.png): Numeric Metrics There are currently no numeric metrics available. From the server.log, the following error is logged at debug: DEBUG [org.rhq.core.pc.inventory.ResourceContainer$ResourceComponentInvocationHandler] (http-0.0.0.0-8080-2) Call to [org.jboss.as.integration.hornetq.jopr.JMSQueueComponent.getValues()] with args [[org.rhq.core.domain.measurement.MeasurementReport@560399f8, [MeasurementScheduleRequest[scheduleId=1, name=getDeliveringCount, interval=0, enabled=true, dataType=MEASUREMENT, rawNumericType=null], MeasurementScheduleRequest[scheduleId=1, name=getMessageCount, interval=0, enabled=true, dataType=MEASUREMENT, rawNumericType=null], MeasurementScheduleRequest[scheduleId=1, name=getConsumerCount, interval=0, enabled=true, dataType=MEASUREMENT, rawNumericType=null], MeasurementScheduleRequest[scheduleId=1, name=getMessagesAdded, interval=0, enabled=true, dataType=MEASUREMENT, rawNumericType=null], MeasurementScheduleRequest[scheduleId=1, name=getScheduledCount, interval=0, enabled=true, dataType=MEASUREMENT, rawNumericType=null]]]] failed. java.util.concurrent.ExecutionException: java.lang.NullPointerException at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:262) at java.util.concurrent.FutureTask.get(FutureTask.java:119) at org.rhq.core.pc.inventory.ResourceContainer$ResourceComponentInvocationHandler.invokeInNewThreadWithLock(ResourceContainer.java:446) at org.rhq.core.pc.inventory.ResourceContainer$ResourceComponentInvocationHandler.invoke(ResourceContainer.java:434) at $Proxy193.getValues(Unknown Source) at org.rhq.core.pc.measurement.MeasurementManager.getRealTimeMeasurementValue(MeasurementManager.java:435) at org.jboss.on.embedded.bean.MeasurementUtils.loadMeasurementData(MeasurementUtils.java:126) at org.jboss.on.embedded.ui.MetricAction.view(MetricAction.java:107) ... Caused by: java.lang.NullPointerException at org.jboss.as.integration.hornetq.jopr.util.ManagementSupport.getOperation(ManagementSupport.java:40) at org.jboss.as.integration.hornetq.jopr.JMSResourceComponent.getValues(JMSResourceComponent.java:86) at sun.reflect.GeneratedMethodAccessor622.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:616) at org.rhq.core.pc.inventory.ResourceContainer$ComponentInvocationThread.call(ResourceContainer.java:525) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) ... 1 more Upon investigation of the code, the issue is that ComponentType{type=JMSDestinationManage, subtype=QueueManage} temporarily disappears from org.jboss.profileservice.management.ManagementViewImpl.compByCompType resulting in `null` being returned as the component and this component making its way back out to the HornetQ plug-in. I am not certain why the subtype vanishes from the management view. It seems that this is happening during resource discovery so perhaps the resource discovery process is using the same management view object that is being used by the plug-ins from the plug-in container. In either case, this issue occurs quite frequently.