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https://issues.apache.org/jira/browse/OAK-8656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Marcel Reutegger resolved OAK-8656.
-----------------------------------
Fix Version/s: 1.20.0
Resolution: Fixed
Applied to trunk: http://svn.apache.org/r1867773
Thanks again for your contribution.
> ListenerStatsData.toCompositeData() throws NPE
> ----------------------------------------------
>
> Key: OAK-8656
> URL: https://issues.apache.org/jira/browse/OAK-8656
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: documentmk
> Reporter: José Andrés Cordero Benítez
> Assignee: Marcel Reutegger
> Priority: Major
> Fix For: 1.20.0
>
> Attachments:
> Granite-26986-npe-ListenerStatsData-toCompositeData.patch, OAK-8656.patch
>
>
> Seen recently in an oak-sprout build.
> {noformat}
> 20.08.2019 17:06:17.206 *WARN*
> [sling-default-3-health-com.adobe.granite.repository.hc.impl.ObservationQueueLengthHealthCheck]
> com.adobe.granite.repository.hc.impl.ObservationQueueLengthHealthCheck
> Exception while getting mBean property: ListenerStats
> javax.management.RuntimeMBeanException: java.lang.NullPointerException
> at
> java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:829)
> at
> java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:842)
> at
> java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:645)
> at
> java.management/com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:678)
> at
> com.adobe.granite.repository.hc.impl.ObservationQueueLengthHealthCheck.getTabularData(ObservationQueueLengthHealthCheck.java:250)
> at
> com.adobe.granite.repository.hc.impl.ObservationQueueLengthHealthCheck.checkEventListenerStats(ObservationQueueLengthHealthCheck.java:110)
> at
> com.adobe.granite.repository.hc.impl.ObservationQueueLengthHealthCheck.execute(ObservationQueueLengthHealthCheck.java:83)
> at
> com.adobe.granite.queries.impl.hc.QueryHealthCheckMetrics$LazyGauge.execute(QueryHealthCheckMetrics.java:257)
> [com.adobe.granite.queries:1.0.70]
> at
> com.adobe.granite.queries.impl.hc.QueryHealthCheckMetrics$LazyGauge.lambda$new$0(QueryHealthCheckMetrics.java:244)
> [com.adobe.granite.queries:1.0.70]
> at
> org.apache.sling.commons.scheduler.impl.QuartzJobExecutor.execute(QuartzJobExecutor.java:347)
> [org.apache.sling.commons.scheduler:2.7.2]
> at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
> [org.apache.sling.commons.scheduler:2.7.2]
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at java.base/java.lang.Thread.run(Thread.java:834)
> Caused by: java.lang.NullPointerException: null
> at
> org.apache.jackrabbit.oak.jcr.observation.ConsolidatedListenerMBeanImpl$ListenerStatsData.toCompositeData(ConsolidatedListenerMBeanImpl.java:423)
> [org.apache.jackrabbit.oak-jcr:1.18.0.SNAPSHOT]
> at
> org.apache.jackrabbit.oak.jcr.observation.ConsolidatedListenerMBeanImpl.getListenerStats(ConsolidatedListenerMBeanImpl.java:119)
> [org.apache.jackrabbit.oak-jcr:1.18.0.SNAPSHOT]
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.base/java.lang.reflect.Method.invoke(Method.java:566)
> at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
> at jdk.internal.reflect.GeneratedMethodAccessor24.invoke(Unknown Source)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.base/java.lang.reflect.Method.invoke(Method.java:566)
> at java.base/sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:260)
> at
> java.management/com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:112)
> at
> java.management/com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:46)
> at
> java.management/com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:237)
> at
> java.management/com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:83)
> at
> java.management/com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:206)
> at
> java.management/javax.management.StandardMBean.getAttribute(StandardMBean.java:372)
> at
> java.management/com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:641)
> ... 11 common frames omitted{noformat}
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