Examples with ListenerNotFoundException javax.management.ListenerNotFoundException used on opensource projects

Example 11 with ListenerNotFoundException

use of javax.management.ListenerNotFoundException in project jdk8u_jdk by JetBrains.

the class RequiredModelMBean method removeNotificationListener.

public void removeNotificationListener(NotificationListener listener, NotificationFilter filter, Object handback) throws ListenerNotFoundException {
    if (listener == null)
        throw new ListenerNotFoundException("Notification listener is null");
    final String mth = "removeNotificationListener(" + "NotificationListener, NotificationFilter, Object)";
    if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
        MODELMBEAN_LOGGER.logp(Level.FINER, RequiredModelMBean.class.getName(), mth, "Entry");
    }
    if (generalBroadcaster == null)
        throw new ListenerNotFoundException("No notification listeners registered");
    generalBroadcaster.removeNotificationListener(listener, filter, handback);
    if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
        MODELMBEAN_LOGGER.logp(Level.FINER, RequiredModelMBean.class.getName(), mth, "Exit");
    }
}

Example 12 with ListenerNotFoundException

use of javax.management.ListenerNotFoundException in project jdk8u_jdk by JetBrains.

the class NotificationEmitterSupport method removeNotificationListener.

public void removeNotificationListener(NotificationListener listener) throws ListenerNotFoundException {
    synchronized (listenerLock) {
        List<ListenerInfo> newList = new ArrayList<>(listenerList);
        /* We scan the list of listeners in reverse order because
               in forward order we would have to repeat the loop with
               the same index after a remove.  */
        for (int i = newList.size() - 1; i >= 0; i--) {
            ListenerInfo li = newList.get(i);
            if (li.listener == listener)
                newList.remove(i);
        }
        if (newList.size() == listenerList.size())
            throw new ListenerNotFoundException("Listener not registered");
        listenerList = newList;
    }
}

Example 13 with ListenerNotFoundException

use of javax.management.ListenerNotFoundException in project jdk8u_jdk by JetBrains.

the class DeadListenerTest method main.

public static void main(String[] args) throws Exception {
    final ObjectName delegateName = MBeanServerDelegate.DELEGATE_NAME;
    MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
    Noddy mbean = new Noddy();
    ObjectName name = new ObjectName("d:k=v");
    mbs.registerMBean(mbean, name);
    JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///");
    SnoopRMIServerImpl rmiServer = new SnoopRMIServerImpl();
    RMIConnectorServer cs = new RMIConnectorServer(url, null, rmiServer, mbs);
    cs.start();
    JMXServiceURL addr = cs.getAddress();
    assertTrue("No connections in new connector server", rmiServer.connections.isEmpty());
    JMXConnector cc = JMXConnectorFactory.connect(addr);
    MBeanServerConnection mbsc = cc.getMBeanServerConnection();
    assertTrue("One connection on server after client connect", rmiServer.connections.size() == 1);
    RMIConnectionImpl connection = rmiServer.connections.get(0);
    Method getServerNotifFwdM = RMIConnectionImpl.class.getDeclaredMethod("getServerNotifFwd");
    getServerNotifFwdM.setAccessible(true);
    ServerNotifForwarder serverNotifForwarder = (ServerNotifForwarder) getServerNotifFwdM.invoke(connection);
    Field listenerMapF = ServerNotifForwarder.class.getDeclaredField("listenerMap");
    listenerMapF.setAccessible(true);
    @SuppressWarnings("unchecked") Map<ObjectName, Set<?>> listenerMap = (Map<ObjectName, Set<?>>) listenerMapF.get(serverNotifForwarder);
    assertTrue("Server listenerMap initially empty", mapWithoutKey(listenerMap, delegateName).isEmpty());
    final AtomicInteger count1Val = new AtomicInteger();
    CountListener count1 = new CountListener(count1Val);
    mbsc.addNotificationListener(name, count1, null, null);
    WeakReference<CountListener> count1Ref = new WeakReference<>(count1);
    count1 = null;
    final AtomicInteger count2Val = new AtomicInteger();
    CountListener count2 = new CountListener(count2Val);
    NotificationFilterSupport dummyFilter = new NotificationFilterSupport();
    dummyFilter.enableType("");
    mbsc.addNotificationListener(name, count2, dummyFilter, "noddy");
    WeakReference<CountListener> count2Ref = new WeakReference<>(count2);
    count2 = null;
    assertTrue("One entry in listenerMap for two listeners on same MBean", mapWithoutKey(listenerMap, delegateName).size() == 1);
    Set<?> set = listenerMap.get(name);
    assertTrue("Set in listenerMap for MBean has two elements", set != null && set.size() == 2);
    assertTrue("Initial value of count1 == 0", count1Val.get() == 0);
    assertTrue("Initial value of count2 == 0", count2Val.get() == 0);
    Notification notif = new Notification("type", name, 0);
    mbean.sendNotification(notif);
    // Make sure notifs are working normally.
    long deadline = System.currentTimeMillis() + 2000;
    while ((count1Val.get() != 1 || count2Val.get() != 1) && System.currentTimeMillis() < deadline) {
        Thread.sleep(10);
    }
    assertTrue("New value of count1 == 1", count1Val.get() == 1);
    assertTrue("Initial value of count2 == 1", count2Val.get() == 1);
    // Make sure that removing a nonexistent listener from an existent MBean produces ListenerNotFoundException
    CountListener count3 = new CountListener();
    try {
        mbsc.removeNotificationListener(name, count3);
        assertTrue("Remove of nonexistent listener succeeded but should not have", false);
    } catch (ListenerNotFoundException e) {
    // OK: expected
    }
    // Make sure that removing a nonexistent listener from a nonexistent MBean produces ListenerNotFoundException
    ObjectName nonexistent = new ObjectName("foo:bar=baz");
    assertTrue("Nonexistent is nonexistent", !mbs.isRegistered(nonexistent));
    try {
        mbsc.removeNotificationListener(nonexistent, count3);
        assertTrue("Remove of listener from nonexistent MBean succeeded but should not have", false);
    } catch (ListenerNotFoundException e) {
    // OK: expected
    }
    // Now unregister our MBean, and check that notifs it sends no longer go anywhere.
    mbs.unregisterMBean(name);
    mbean.sendNotification(notif);
    Thread.sleep(200);
    assertTrue("New value of count1 == 1", count1Val.get() == 1);
    assertTrue("Initial value of count2 == 1", count2Val.get() == 1);
    // wait for the listener cleanup to take place upon processing notifications
    // waiting max. 5 secs
    int countdown = 50;
    while (countdown-- > 0 && (count1Ref.get() != null || count2Ref.get() != null)) {
        System.gc();
        Thread.sleep(100);
        System.gc();
    }
    // listener has been removed or the wait has timed out
    assertTrue("count1 notification listener has not been cleaned up", count1Ref.get() == null);
    assertTrue("count2 notification listener has not been cleaned up", count2Ref.get() == null);
    // Check that there is no trace of the listeners any more in ServerNotifForwarder.listenerMap.
    // THIS DEPENDS ON JMX IMPLEMENTATION DETAILS.
    // If the JMX implementation changes, the code here may have to change too.
    Set<?> setForUnreg = listenerMap.get(name);
    assertTrue("No trace of unregistered MBean: " + setForUnreg, setForUnreg == null);
}

Example 14 with ListenerNotFoundException

use of javax.management.ListenerNotFoundException in project geode by apache.

the class HeapMemoryMonitor method stopMonitoring.

/**
   * Stops all three mechanisms from monitoring heap usage.
   */
@Override
public void stopMonitoring() {
    synchronized (this) {
        if (!this.started) {
            return;
        }
        // Stop the poller
        this.resourceManager.stopExecutor(this.pollerExecutor);
        // Stop the JVM threshold listener
        NotificationEmitter emitter = (NotificationEmitter) ManagementFactory.getMemoryMXBean();
        try {
            emitter.removeNotificationListener(this, null, null);
            this.cache.getLoggerI18n().fine("Removed Memory MXBean notification listener" + this);
        } catch (ListenerNotFoundException ignore) {
            logger.debug("This instance '{}' was not registered as a Memory MXBean listener", this);
        }
        // Stop the stats listener
        final GemFireStatSampler sampler = this.cache.getInternalDistributedSystem().getStatSampler();
        if (sampler != null) {
            sampler.removeLocalStatListener(this.statListener);
        }
        this.started = false;
    }
}

Example 15 with ListenerNotFoundException

use of javax.management.ListenerNotFoundException in project geode by apache.

the class DistributedSystemBridge method removeMemberFromSystem.

/**
   * Removed the proxy from the map.
   *
   * @param objectName name of the proxy to be removed.
   * @param proxy actual reference to the proxy object
   * @return whether all proxies have been removed or not. In this case it will always be false.
   *         Kept it for consistency for MBeanAggregator.
   */
public boolean removeMemberFromSystem(ObjectName objectName, MemberMXBean proxy, FederationComponent oldState) {
    if (thisMemberName.equals(objectName)) {
        ObjectName distrObjectName = MBeanJMXAdapter.getDistributedSystemName();
        service.unregisterMBean(distrObjectName);
    }
    if (mapOfMembers != null) {
        mapOfMembers.remove(objectName);
        memberSetSize = mapOfMembers.values().size();
        if (mapOfMembers.values().size() == 0) {
            memberSetSize = 0;
            return true;
        }
    }
    updateMember(objectName, null, oldState);
    try {
        mbeanServer.removeNotificationListener(objectName, distListener);
    } catch (ListenerNotFoundException e) {
        logger.info(LocalizedMessage.create(ManagementStrings.LISTENER_NOT_FOUND_FOR_0, objectName));
        if (logger.isDebugEnabled()) {
            logger.debug(e.getMessage(), e);
        }
    } catch (InstanceNotFoundException e) {
        logger.info(LocalizedMessage.create(ManagementStrings.INSTANCE_NOT_FOUND, objectName));
        if (logger.isDebugEnabled()) {
            logger.debug(e.getMessage(), e);
        }
    }
    return false;
}