问题
I was using ManagementFactory to get ManagedMbeans in JDK1.5 and JBOSS 4.X. Now wanted to move my same code to JDK 1.6. The Mbean part breaks throwing the exception
Caused by: javax.management.NotCompliantMBeanException: Class does not expose a management interface: java.lang.Object Caused by: java.lang.Exception: Unable to register platform (JVM) MBeans with JBoss MBeanServer
回答1:
Here's 2 approaches:
- Make JBossAS use the platform MBeanServer.
- Create your own proxies that implement the MXBean interfaces (and have the *MBean compliant name in the interface) and delegate the calls to the actual MXBeans.
Sample Code For #2
This is a JBoss ServiceMBean implementation that will cross publish platform agent MXBeans to the JBoss MBeanServer. (Imports removed for brevity). It is a slightly different approach to the one I outlined, but spiritually, it is the same. There's a couple of extra hoo-has in there to manage the forwarding of notifications.
package org.helios.jboss.jmx.mxbean;
public class MXBeanPublisher extends ServiceMBeanSupport implements MXBeanPublisherMBean {
protected final Map<ObjectName, DynamicMBeanNotifEnabled> published = new HashMap<ObjectName, DynamicMBeanNotifEnabled>();
protected final ExecutorService executor = Executors.newCachedThreadPool();
public Set<ObjectName> getPublishedNames() {
return Collections.unmodifiableSet(published.keySet());
}
public static interface DynamicMBeanNotifEnabled extends NotificationBroadcaster, NotificationEmitter, DynamicMBean, NotificationListener {
public void startNotifications() throws InstanceNotFoundException;
public void stopNotifications() throws InstanceNotFoundException, ListenerNotFoundException;
}
protected DynamicMBeanNotifEnabled publishMXBean(final ObjectName on, Class<?> iface) throws InstanceAlreadyExistsException, MBeanRegistrationException, NotCompliantMBeanException, InstanceNotFoundException {
final MBeanServer platformAgent = ManagementFactory.getPlatformMBeanServer();
DynamicMBeanNotifEnabled dmb = new DynamicMBeanNotifEnabled() {
NotificationBroadcasterSupport bcaster = new NotificationBroadcasterSupport(executor);
public Object getAttribute(String attribute)throws AttributeNotFoundException, MBeanException, ReflectionException {
try {
return platformAgent.getAttribute(on, attribute);
} catch (InstanceNotFoundException e) {
throw new MBeanException(e, "Instance [" + on + "] not found");
}
}
public void setAttribute(Attribute attribute)throws AttributeNotFoundException, InvalidAttributeValueException, MBeanException, ReflectionException {
try {
platformAgent.setAttribute(on, attribute);
} catch (InstanceNotFoundException e) {
throw new MBeanException(e, "Instance [" + on + "] not found");
}
}
public AttributeList getAttributes(String[] attributes) {
try {
return platformAgent.getAttributes(on, attributes);
} catch (Exception e) {
throw new RuntimeException("Failed to getAttributes on [" + on + "]", e);
}
}
public AttributeList setAttributes(AttributeList attributes) {
try {
return platformAgent.setAttributes(on, attributes);
} catch (Exception e) {
throw new RuntimeException("Failed to setAttributes on [" + on + "]", e);
}
}
public Object invoke(String actionName, Object[] params,String[] signature) throws MBeanException, ReflectionException {
try {
return platformAgent.invoke(on, actionName, params, signature);
} catch (InstanceNotFoundException e) {
throw new MBeanException(e, "Instance [" + on + "] not found");
}
}
public MBeanInfo getMBeanInfo() {
try {
return platformAgent.getMBeanInfo(on);
} catch (Exception e) {
throw new RuntimeException("Failed to get MBeanInfo for Instance [" + on + "]", e);
}
}
public void addNotificationListener(NotificationListener listener,
NotificationFilter filter, Object handback) {
bcaster.addNotificationListener(listener, filter, handback);
}
public void removeNotificationListener(NotificationListener listener)
throws ListenerNotFoundException {
bcaster.removeNotificationListener(listener);
}
public void removeNotificationListener(
NotificationListener listener, NotificationFilter filter,
Object handback) throws ListenerNotFoundException {
bcaster.removeNotificationListener(listener, filter, handback);
}
public MBeanNotificationInfo[] getNotificationInfo() {
return bcaster.getNotificationInfo();
}
public void startNotifications() throws InstanceNotFoundException {
ManagementFactory.getPlatformMBeanServer().addNotificationListener(on, this, null, null);
}
public void stopNotifications() throws InstanceNotFoundException, ListenerNotFoundException {
ManagementFactory.getPlatformMBeanServer().removeNotificationListener(on, this, null, null);
}
@Override
public void handleNotification(Notification notification, Object handback) {
bcaster.sendNotification(notification);
}
};
if(server.isRegistered(on)) return null;
server.registerMBean(dmb, on);
published.put(on, dmb);
dmb.startNotifications();
return dmb;
}
public void startService() throws Exception {
try { publishMXBean(new ObjectName(ManagementFactory.OPERATING_SYSTEM_MXBEAN_NAME), OperatingSystemMXBean.class); } catch (Exception e) {
log.error("Failed to publish OperatingSystemMXBean", e);
};
try { publishMXBean(new ObjectName(ManagementFactory.CLASS_LOADING_MXBEAN_NAME), ClassLoadingMXBean.class); } catch (Exception e) {
log.error("Failed to publish ClassLoadingMXBean", e);
};
try { publishMXBean(new ObjectName(ManagementFactory.MEMORY_MXBEAN_NAME), MemoryMXBean.class); } catch (Exception e) {
log.error("Failed to publish MemoryMXBean", e);
};
try { publishMXBean(new ObjectName(ManagementFactory.RUNTIME_MXBEAN_NAME), RuntimeMXBean.class); } catch (Exception e) {
log.error("Failed to publish RuntimeMXBean", e);
};
try { publishMXBean(new ObjectName(ManagementFactory.THREAD_MXBEAN_NAME), ThreadMXBean.class); } catch (Exception e) {
log.error("Failed to publish RuntimeMXBean", e);
};
for(GarbageCollectorMXBean gc: ManagementFactory.getGarbageCollectorMXBeans()) {
try { publishMXBean(new ObjectName(ManagementFactory.GARBAGE_COLLECTOR_MXBEAN_DOMAIN_TYPE + ",name=" + gc.getName()), GarbageCollectorMXBean.class); } catch (Exception e) {
log.error("Failed to publish GarbageCollectorMXBean[" + gc.getName() + "]", e);
};
}
for(MemoryManagerMXBean mm: ManagementFactory.getMemoryManagerMXBeans()) {
try { publishMXBean(new ObjectName(ManagementFactory.MEMORY_MANAGER_MXBEAN_DOMAIN_TYPE + ",name=" + mm.getName()), MemoryManagerMXBean.class); } catch (Exception e) {
};
}
for(MemoryPoolMXBean mp: ManagementFactory.getMemoryPoolMXBeans()) {
try { publishMXBean(new ObjectName(ManagementFactory.MEMORY_POOL_MXBEAN_DOMAIN_TYPE + ",name=" + mp.getName()), MemoryPoolMXBean.class); } catch (Exception e) {
log.error("Failed to publish MemoryPoolMXBean[" + mp.getName() + "]", e);
};
}
}
public void stopService() {
for(Map.Entry<ObjectName, DynamicMBeanNotifEnabled> entry: published.entrySet()) {
try { server.unregisterMBean(entry.getKey()); } catch (Exception e) {}
try { entry.getValue().stopNotifications(); } catch (Exception e) {}
}
published.clear();
}
}
The interface is trivial
package org.helios.jboss.jmx.mxbean;
public interface MXBeanPublisherMBean extends ServiceMBean {
public Set<ObjectName> getPublishedNames();
}
This MBean deployment descriptor will deploy the service:
<mbean code="org.helios.jboss.jmx.mxbean.MXBeanPublisher" name="jboss.deployer:service=MXBeanPublisher" />
来源：https://stackoverflow.com/questions/5784551/managed-mbeans-from-managementfactory-in-jdk1-6-notcompliantmbeanexception