Details
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Bug
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Status: Closed
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Major
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Resolution: Fixed
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None
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None
Description
Seen recently in an oak-sprout build.
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