[jboss-jira] [JBoss JIRA] (WFCORE-1039) Intermittent failure in notification listener testing in org.jboss.as.jmx.rbac.JmxRbacEnabledTestCase

[ https://issues.jboss.org/browse/WFCORE-1039?page=com.atlassian.jira.plugi... ] Brian Stansberry updated WFCORE-1039: ------------------------------------- Description: For a while we've seen rare failures of JMX tests that look like this: {code} java.lang.RuntimeException: java.security.PrivilegedActionException: javax.management.ListenerNotFoundException: Unknown listener at org.jboss.as.jmx.rbac.JmxRbacTestCase.checkMBeanAccess(JmxRbacTestCase.java:484) at org.jboss.as.jmx.rbac.JmxRbacTestCase.testMonitorNonSensitiveMBeans(JmxRbacTestCase.java:219) ... Caused by: java.security.PrivilegedActionException: null at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.jboss.as.jmx.rbac.JmxRbacTestCase.checkMBeanAccess(JmxRbacTestCase.java:254) at org.jboss.as.jmx.rbac.JmxRbacTestCase.testMonitorNonSensitiveMBeans(JmxRbacTestCase.java:219) ... Caused by: javax.management.ListenerNotFoundException: Unknown listener at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.removeNotificationListener(DefaultMBeanServerInterceptor.java:1339) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.removeNotificationListener(DefaultMBeanServerInterceptor.java:1242) at com.sun.jmx.mbeanserver.JmxMBeanServer.removeNotificationListener(JmxMBeanServer.java:870) at org.jboss.as.jmx.PluggableMBeanServerImpl$TcclMBeanServer.removeNotificationListener(PluggableMBeanServerImpl.java:1544) at org.jboss.as.jmx.PluggableMBeanServerImpl.removeNotificationListener(PluggableMBeanServerImpl.java:969) at org.jboss.as.jmx.rbac.JmxRbacTestCase$1.run(JmxRbacTestCase.java:368) at org.jboss.as.jmx.rbac.JmxRbacTestCase$1.run(JmxRbacTestCase.java:254) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.jboss.as.jmx.rbac.JmxRbacTestCase.checkMBeanAccess(JmxRbacTestCase.java:254) at org.jboss.as.jmx.rbac.JmxRbacTestCase.testMonitorNonSensitiveMBeans(JmxRbacTestCase.java:219) {code} The problem is the TestModelMBean used by the test is not holding a ref to the "listenerWrapper" that the JVM MBeanServer passes into its addNotificationListener method. That allows that listenerWrapper to be gc'd, resulting in the failure of the removeNotificationListener call on the next line of the test. The test holding a ref to the listener doesn't matter, as it's a "listenerWrapper" object that matters. was: For a while we've seen rare failures of that look like this: {code} java.lang.RuntimeException: java.security.PrivilegedActionException: javax.management.ListenerNotFoundException: Unknown listener at org.jboss.as.jmx.rbac.JmxRbacTestCase.checkMBeanAccess(JmxRbacTestCase.java:484) at org.jboss.as.jmx.rbac.JmxRbacTestCase.testMonitorNonSensitiveMBeans(JmxRbacTestCase.java:219) ... Caused by: java.security.PrivilegedActionException: null at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.jboss.as.jmx.rbac.JmxRbacTestCase.checkMBeanAccess(JmxRbacTestCase.java:254) at org.jboss.as.jmx.rbac.JmxRbacTestCase.testMonitorNonSensitiveMBeans(JmxRbacTestCase.java:219) ... Caused by: javax.management.ListenerNotFoundException: Unknown listener at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.removeNotificationListener(DefaultMBeanServerInterceptor.java:1339) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.removeNotificationListener(DefaultMBeanServerInterceptor.java:1242) at com.sun.jmx.mbeanserver.JmxMBeanServer.removeNotificationListener(JmxMBeanServer.java:870) at org.jboss.as.jmx.PluggableMBeanServerImpl$TcclMBeanServer.removeNotificationListener(PluggableMBeanServerImpl.java:1544) at org.jboss.as.jmx.PluggableMBeanServerImpl.removeNotificationListener(PluggableMBeanServerImpl.java:969) at org.jboss.as.jmx.rbac.JmxRbacTestCase$1.run(JmxRbacTestCase.java:368) at org.jboss.as.jmx.rbac.JmxRbacTestCase$1.run(JmxRbacTestCase.java:254) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.jboss.as.jmx.rbac.JmxRbacTestCase.checkMBeanAccess(JmxRbacTestCase.java:254) at org.jboss.as.jmx.rbac.JmxRbacTestCase.testMonitorNonSensitiveMBeans(JmxRbacTestCase.java:219) {code} The problem is the TestModelMBean used by the test is not holding a ref to the "listenerWrapper" that the JVM MBeanServer passes into its addNotificationListener method. That allows that listenerWrapper to be gc'd, resulting in the failure of the removeNotificationListener call on the next line of the test. The test holding a ref to the listener doesn't matter, as it's a "listenerWrapper" object that matters. -- This message was sent by Atlassian JIRA (v6.4.11#64026)