activemq-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Wouter de Vaal (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMQ-5896) Problem getting jmx queue when another is deleting during request
Date Mon, 20 Jul 2015 10:16:04 GMT
Wouter de Vaal created AMQ-5896:
-----------------------------------

             Summary: Problem getting jmx queue when another is deleting during request
                 Key: AMQ-5896
                 URL: https://issues.apache.org/jira/browse/AMQ-5896
             Project: ActiveMQ
          Issue Type: Bug
            Reporter: Wouter de Vaal


When calling RemoteJMXBrokerFacade to get information on a queue, but while doing this another
queue can be removed, leaving the method to throw an exception:

{noformat}
Caused by: java.lang.reflect.UndeclaredThrowableException
	at com.sun.proxy.$Proxy228.getName(Unknown Source)
	at org.apache.activemq.web.BrokerFacadeSupport.getDestinationByName(BrokerFacadeSupport.java:131)
	at org.apache.activemq.web.BrokerFacadeSupport.getQueue(BrokerFacadeSupport.java:118)
	... 3 more
Caused by: javax.management.InstanceNotFoundException: org.apache.activemq:type=Broker,brokerName=localhost,destinationType=Queue,destinationName=20150720083000_82a7f1c6-2eb9-11e5-9d34-0242ac110091
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getMBean(DefaultMBeanServerInterceptor.java:1095)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:643)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:678)
	at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1464)
	at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:97)
	at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1328)
	at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1420)
	at javax.management.remote.rmi.RMIConnectionImpl.getAttribute(RMIConnectionImpl.java:657)
	at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:322)
	at sun.rmi.transport.Transport$2.run(Transport.java:202)
	at sun.rmi.transport.Transport$2.run(Transport.java:199)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.java:198)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:567)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:828)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.access$400(TCPTransport.java:619)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$1.run(TCPTransport.java:684)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$1.run(TCPTransport.java:681)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:681)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
	at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:275)
	at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:252)
	at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:161)
	at com.sun.jmx.remote.internal.PRef.invoke(Unknown Source)
	at javax.management.remote.rmi.RMIConnectionImpl_Stub.getAttribute(Unknown Source)
	at javax.management.remote.rmi.RMIConnector$RemoteMBeanServerConnection.getAttribute(RMIConnector.java:906)
	at javax.management.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:267)
	... 7 more
{noformat}

So what happens is that method getDestinationByName first gets a list of all the queue names.
Then it iterates through them when meanwhile a queue gets deleted and thus throwing an exception.
Fix should probably be in BrokerFacadeSupport:

{noformat}
        protected DestinationViewMBean getDestinationByName(Collection<? extends DestinationViewMBean>
collection, String name) {
            Iterator<? extends DestinationViewMBean> iter = collection.iterator();
            while (iter.hasNext()) {
                DestinationViewMBean destinationViewMBean = iter.next();
                try {
                    String destName = destinationViewMBean.getName();
                    if (name.equals(destName)) {
                        return destinationViewMBean;
                    }
                } catch (Exception e){
                    continue;
                }
            }
            return null;
        }
{noformat}



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message