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From Jaroslaw Cwiklik <uim...@gmail.com>
Subject Re: Lost Connection to Delegate
Date Thu, 31 Mar 2011 14:40:04 GMT
Pierre, to set a timeout on the aggregate do the following in the
application client:

//create Asynchronous Client API
uimaAsEngine = new BaseUIMAAsynchronousEngine_impl();
//create Map to pass server URI and Endpoint parameters
Map<String,Object> appCtx = new HashMap<String,Object>();
...
appCtx.put(UimaAsynchronousEngine.Timeout, 500); // 500ms timeout on Process
CAS
uimaAsEngine.initialize(appCtx);
...

This should help with recovery of the CASes with invalid  reply queue.
NOTE: if you listener plugged in to the uimaASEngine you will receive
callback with Timeout exception.
In your code you need to decide whether to retry CAS or not.

JC


On Thu, Mar 31, 2011 at 9:55 AM, Pierre Pujalon <ppujalon@yahoo.fr> wrote:

> JC
>
> I have a 15000ms process timeout for the UIMAEngine and I have a 15000ms
> timeout for the remoteDelegate
>
> I haven't found how to set a timeout for the aggregate to be honest.
>
> You are right I have this exception in the console
> javax.jms.InvalidDestinationException: Cannot publish to a deleted
> Destination: temp-queue://ID:${brokerUrl}-55450-1301578320924-0:0:1
>        at
> org.apache.activemq.ActiveMQSession.send(ActiveMQSession.java:1696)
>        at
> org.apache.activemq.ActiveMQMessageProducer.send(ActiveMQMessageProducer.java:231)
>        at
> org.apache.activemq.ActiveMQMessageProducerSupport.send(ActiveMQMessageProducerSupport.java:300)
>        at
> org.apache.uima.adapter.jms.activemq.JmsEndpointConnection_impl.send(JmsEndpointConnection_impl.java:574)
>
>        at
> org.apache.uima.adapter.jms.activemq.JmsEndpointConnection_impl.send(JmsEndpointConnection_impl.java:507)
>        at
> org.apache.uima.adapter.jms.activemq.JmsOutputChannel.dispatch(JmsOutputChannel.java:1366)
>        at
> org.apache.uima.adapter.jms.activemq.JmsOutputChannel.sendCasToRemoteEndpoint(JmsOutputChannel.java:1527)
>        at
> org.apache.uima.adapter.jms.activemq.JmsOutputChannel.sendReply(JmsOutputChannel.java:689)
>        at
> org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.sendReplyToRemoteClient(AggregateAnalysisEngineController_impl.java:2033)
>        at
> org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.replyToClient(AggregateAnalysisEngineController_impl.java:2170)
>        at
> org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.finalStep(AggregateAnalysisEngineController_impl.java:1734)
>        at
> org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.executeFlowStep(AggregateAnalysisEngineController_impl.java:2317)
>
>        at
> org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.process(AggregateAnalysisEngineController_impl.java:1229)
>        at
> org.apache.uima.aae.handler.HandlerBase.invokeProcess(HandlerBase.java:118)
>        at
> org.apache.uima.aae.handler.input.ProcessResponseHandler.cancelTimerAndProcess(ProcessResponseHandler.java:108)
>        at
> org.apache.uima.aae.handler.input.ProcessResponseHandler.handleProcessResponseWithCASReference(ProcessResponseHandler.java:387)
>        at
> org.apache.uima.aae.handler.input.ProcessResponseHandler.handle(ProcessResponseHandler.java:656)
>        at
> org.apache.uima.aae.handler.HandlerBase.delegate(HandlerBase.java:149)
>        at
> org.apache.uima.aae.handler.input.ProcessRequestHandler_impl.handle(ProcessRequestHandler_impl.java:973)
>        at
> org.apache.uima.aae.spi.transport.vm.UimaVmMessageListener.onMessage(UimaVmMessageListener.java:107)
>        at
> org.apache.uima.aae.spi.transport.vm.UimaVmMessageDispatcher$1.run(UimaVmMessageDispatcher.java:70)
>        at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>        at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>        at java.lang.Thread.run(Thread.java:619)
>
>
> Thanks
> Pierre
>
> Le 31/03/2011 15:43, Jaroslaw Cwiklik a écrit :
>
>  Pierre, since the aggregate received the three CASes and these are never
>> returned to the application client I suspect that a temp reply queue
>> associated with the three CASes is no longer valid. Check your aggregate
>> log
>> for exceptions. Perhaps the aggregate is trying to return the CASes but it
>> fails on send since the temp reply queue no longer exists. Just to be
>> clear
>> do you define Process timeout in your application client? It wasnt clear
>> to
>> me if the timeout of 15000ms is in the aggregate client or the application
>> client.
>>
>> JC
>>
>> On Thu, Mar 31, 2011 at 9:24 AM, Pierre Pujalon<ppujalon@yahoo.fr>
>>  wrote:
>>
>>  JC,
>>>
>>> I had to work on this topic and add instrumentation a bit to try to have
>>> a
>>> clearer vision. The basic idea is to test robustness of the processing
>>> when
>>> the ActiveMQ have a downtime (generally only for milliseconds). This
>>> scenario is a real life scenario.
>>>
>>> I have an application client using the aggregate client with
>>> UimaAsynchronousEngine. I have a pool of 4 CASes, a  timeout set to
>>> 15000ms
>>> in the client and not CASMultiplier in the aggregate.
>>>
>>> When JMS gets down and up. I receive in my CallbackListener only one
>>> exception out of the four CASes (the 15000ms timeout) . The three others
>>> never trigger any timeout.
>>> Actually, it seems that thoses CASes are being processed in the aggregate
>>> as I have the trace of the annotators in the aggregate log. But they
>>> never
>>> go back to the reply queue.
>>>
>>> I traced the CASId that the engine sends and receives in the listener.
>>> Let's say I have id1, Id2, id3 and id4.
>>>
>>> As the JMS gets down and up,  one of the case (id1) is released . The
>>> application client send another CAS . As this very point, the method
>>> sendCas
>>> returns a CASId id5 but in the CallbackListener the onBeforeMessageSend
>>> status tells me the CASid is id4.  It is confirmed with the aggregate
>>> which
>>> logs the message :
>>> Duplicate Request With Cas Reference Id: (id4) Received. Ignoring
>>> Duplicate.
>>>
>>> The CasPool in the UIMAEngines is full and the client stalls.
>>> Restarting the UIMAAsynchronousEngine is the only solution to continue
>>> processing, the ag
>>> My guess is that it comes from the UIMAAsynchronousEngine.
>>> I hope it is clear
>>>
>>> Pierre
>>> PS : I set the timeout to 5 seconds, and I have a total different
>>> scenario
>>> which is no better :)
>>>
>>>
>>>
>>> Le 29/03/2011 18:56, Jaroslaw Cwiklik a écrit :
>>>
>>>  Pierre, do you declare a timeout on Process in your aggregate deployment
>>>
>>>> descriptor for the remote delegate? If not, perhaps CASes were sent to
>>>> the
>>>> remote delegate and subsequently dropped because the delegate was not
>>>> unable
>>>> to deliver them to the aggregate client. A timeout would help to recover
>>>> these CASes.
>>>>
>>>> Do you know where you are running out of CASes? Is it in application
>>>> client
>>>> or aggregate client? Use jConsole to attach to each jvm and examine the
>>>> threads. Do you use a Cas Multiplier in the aggregate? How big is its
>>>> pool?
>>>>
>>>> -JC
>>>>
>>>> On Tue, Mar 29, 2011 at 12:03 PM, Pierre Pujalon<ppujalon@yahoo.fr>
>>>>  wrote:
>>>>
>>>>  JC,
>>>>
>>>>> I tested the work around  and a listener to the delegate is indeed
>>>>> recreated. The CAS that were being processed pass through all
>>>>> annotators.
>>>>> But now I have other issues, but it is not the same each time I tried
>>>>> .Either the client is losing connection, or get block on the getCAS
>>>>> method
>>>>> as if cas process during the JMS down time were not release or the
>>>>> aggregate
>>>>> or the aggregate client get stalled...
>>>>> I need to dig a little bit into this because it does not make many
>>>>> sense
>>>>> right now...
>>>>>
>>>>> What bother me is that if I don't make the annotator delegated, the
>>>>> aggregate client  always recover clean with this scenario.
>>>>>
>>>>> Anyway Thanks
>>>>> Pierre
>>>>>
>>>>>
>>>>>
>>>>> Le 28/03/2011 18:07, Jaroslaw Cwiklik a écrit :
>>>>>
>>>>>  Pierre, in my last posting I meant maxRetries=1, not retryCount=1.
>>>>>
>>>>>  JC
>>>>>>
>>>>>> On Mon, Mar 28, 2011 at 12:05 PM, Jaroslaw Cwiklik<uimaee@gmail.com>
>>>>>>  wrote:
>>>>>>
>>>>>>  Pierre, I've identified the bug in UIMA AS code that causes the
>>>>>> problem
>>>>>>
>>>>>>  described. As a workaround, set the retryCount=1 in the error
>>>>>>> handling
>>>>>>> configuration for the delegate defined in your deployment descriptor.
>>>>>>> Here
>>>>>>> is an example:
>>>>>>>
>>>>>>> <remoteAnalysisEngine key="NoOp">
>>>>>>>         <inputQueue endpoint="NoOpAnnotatorQueue"
>>>>>>> brokerURL="${BrokerURL}"/>
>>>>>>>         <serializer method="xmi"/>
>>>>>>>         <asyncAggregateErrorConfiguration>
>>>>>>>                             <processCasErrors maxRetries="1"
>>>>>>> timeout="15000" thresholdCount="1" thresholdAction="terminate"
/>
>>>>>>>          </asyncAggregateErrorConfiguration>
>>>>>>> </remoteAnalysisEngine>
>>>>>>>
>>>>>>> This should force creation of a new listener on the delegate
reply
>>>>>>> queue.
>>>>>>>
>>>>>>> The listener recovery should be done with no retry being set
and I
>>>>>>> will
>>>>>>> make necessary changes in the code to support that use case.
>>>>>>>
>>>>>>> Thanks for finding the bug!
>>>>>>>
>>>>>>> JC
>>>>>>>
>>>>>>> On Tue, Mar 22, 2011 at 1:12 PM, Jaroslaw Cwiklik<uimaee@gmail.com
>>>>>>>
>>>>>>>  wrote:
>>>>>>>>
>>>>>>>>   Pierre, this appears to be a bug. In the scenario you've
described
>>>>>>> the
>>>>>>>
>>>>>>>  uima as aggregate client should detect a lost connection (which
it
>>>>>>>> does)
>>>>>>>> and
>>>>>>>> create a new one on a subsequent process CAS request destined
to the
>>>>>>>> remote
>>>>>>>> delegate. I will attempt to re-create your scenario and see
if this
>>>>>>>> is
>>>>>>>> in
>>>>>>>> fact a bug.
>>>>>>>>
>>>>>>>> Thanks, JC
>>>>>>>>
>>>>>>>>
>>>>>>>> On Tue, Mar 22, 2011 at 7:11 AM, Pierre Pujalon<ppujalon@yahoo.fr
>>>>>>>>
>>>>>>>>  wrote:
>>>>>>>>>
>>>>>>>>>    Hi,
>>>>>>>>
>>>>>>>>   I'm currently using UIMA-AS 2.3.1rc5 and I am having issues
with
>>>>>>>>> asynchronous delegated ..
>>>>>>>>>
>>>>>>>>> I have a chain of several annotators. One of them is
an
>>>>>>>>> asynchronous
>>>>>>>>> delegate as it is very resource consuming.
>>>>>>>>> So I have one UIMA service with a simpleChainDescriptor
and several
>>>>>>>>> UIMA
>>>>>>>>> services with myDelegateAnnotatorDescriptor.
>>>>>>>>>
>>>>>>>>>  When the activeMQ broker fails and restart, all my UIMA
services
>>>>>>>>> resfresh succesfully their JMS connection. But it appears
that the
>>>>>>>>> service
>>>>>>>>> holding the processing chain (simpleChainDescriptor)
 itself does
>>>>>>>>> not
>>>>>>>>> refresh the JMS connection to the delegate JMS queue.
>>>>>>>>>  When a new CAS is processed, I have the following exception
in the
>>>>>>>>> console !!!! and the processing of the cas stop silently
and passes
>>>>>>>>> to
>>>>>>>>> the
>>>>>>>>> next cas.
>>>>>>>>>  If I restart the service holding the chain, everything
go back to
>>>>>>>>> normal.
>>>>>>>>>
>>>>>>>>>  Is this a bug or am I missing something?
>>>>>>>>>
>>>>>>>>>  Thanks,
>>>>>>>>>  Pierre
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> ATTENTION: Uima AS Service:simpleChainDescriptor Listener
>>>>>>>>> Established
>>>>>>>>> Connection to Broker: tcp://brokerurl:61616
>>>>>>>>> 22 mars 2011 11:11:00
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.adapter.jms.activemq.UimaDefaultMessageListenerContainer
>>>>>>>>> handleListenerSetupFailure
>>>>>>>>> ATTENTION: Uima AS Service:simpleChainDescriptor Listener
>>>>>>>>> Established
>>>>>>>>> Connection to Broker: tcp://brokerurl:61616
>>>>>>>>> 22 mars 2011 11:11:00
>>>>>>>>> org.apache.uima.adapter.jms.activemq.JmsOutputChannel
>>>>>>>>> invalidateConnectionAndEndpoints
>>>>>>>>> INFO: Controller simpleChainDescriptor Invalidating JMS
Connection
>>>>>>>>> To
>>>>>>>>> Broker tcp://brokerurl:61616 and Closing Sessions To
Delegates
>>>>>>>>> 22 mars 2011 11:11:01
>>>>>>>>> org.apache.uima.adapter.jms.activemq.JmsEndpointConnection_impl
>>>>>>>>> send
>>>>>>>>> ATTENTION: Service: simpleChainDescriptor Runtime Exception
>>>>>>>>> 22 mars 2011 11:11:01
>>>>>>>>> org.apache.uima.adapter.jms.activemq.JmsEndpointConnection_impl
>>>>>>>>> send
>>>>>>>>> ATTENTION:
>>>>>>>>> org.apache.uima.aae.error.DelegateConnectionLostException:
>>>>>>>>> Controller:simpleChainDescriptor Lost Connection to
>>>>>>>>> Delegate:myDelegateAnnotatorDescriptor
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.adapter.jms.activemq.JmsEndpointConnection_impl.send(JmsEndpointConnection_impl.java:536)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.adapter.jms.activemq.JmsEndpointConnection_impl.send(JmsEndpointConnection_impl.java:507)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.adapter.jms.activemq.JmsOutputChannel.dispatch(JmsOutputChannel.java:1366)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.adapter.jms.activemq.JmsOutputChannel.sendCasToRemoteEndpoint(JmsOutputChannel.java:1527)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.adapter.jms.activemq.JmsOutputChannel.serializeCasAndSend(JmsOutputChannel.java:658)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.adapter.jms.activemq.JmsOutputChannel.sendRequest(JmsOutputChannel.java:610)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.dispatch(AggregateAnalysisEngineController_impl.java:2381)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.dispatchProcessRequest(AggregateAnalysisEngineController_impl.java:2421)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.simpleStep(AggregateAnalysisEngineController_impl.java:1294)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.executeFlowStep(AggregateAnalysisEngineController_impl.java:2302)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.process(AggregateAnalysisEngineController_impl.java:1229)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.handler.HandlerBase.invokeProcess(HandlerBase.java:118)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.handler.input.ProcessResponseHandler.cancelTimerAndProcess(ProcessResponseHandler.java:108)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.handler.input.ProcessResponseHandler.handleProcessResponseWithCASReference(ProcessResponseHandler.java:387)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.handler.input.ProcessResponseHandler.handle(ProcessResponseHandler.java:656)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.handler.HandlerBase.delegate(HandlerBase.java:149)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.handler.input.ProcessRequestHandler_impl.handle(ProcessRequestHandler_impl.java:973)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.spi.transport.vm.UimaVmMessageListener.onMessage(UimaVmMessageListener.java:107)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.spi.transport.vm.UimaVmMessageDispatcher$1.run(UimaVmMessageDispatcher.java:70)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>>>>>>>>>        at java.lang.Thread.run(Thread.java:619)
>>>>>>>>> 22 mars 2011 11:11:01
>>>>>>>>> org.apache.uima.aae.error.handler.ProcessCasErrorHandler
>>>>>>>>> handleError
>>>>>>>>> ATTENTION: Service: simpleChainDescriptor Runtime Exception
>>>>>>>>> 22 mars 2011 11:11:01
>>>>>>>>> org.apache.uima.aae.error.handler.ProcessCasErrorHandler
>>>>>>>>> handleError
>>>>>>>>> ATTENTION:
>>>>>>>>> org.apache.uima.aae.error.DelegateConnectionLostException:
>>>>>>>>> Controller:simpleChainDescriptor Lost Connection to
>>>>>>>>> Delegate:myDelegateAnnotatorDescriptor
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.adapter.jms.activemq.JmsEndpointConnection_impl.send(JmsEndpointConnection_impl.java:536)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.adapter.jms.activemq.JmsEndpointConnection_impl.send(JmsEndpointConnection_impl.java:507)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.adapter.jms.activemq.JmsOutputChannel.dispatch(JmsOutputChannel.java:1366)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.adapter.jms.activemq.JmsOutputChannel.sendCasToRemoteEndpoint(JmsOutputChannel.java:1527)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.adapter.jms.activemq.JmsOutputChannel.serializeCasAndSend(JmsOutputChannel.java:658)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.adapter.jms.activemq.JmsOutputChannel.sendRequest(JmsOutputChannel.java:610)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.dispatch(AggregateAnalysisEngineController_impl.java:2381)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.dispatchProcessRequest(AggregateAnalysisEngineController_impl.java:2421)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.simpleStep(AggregateAnalysisEngineController_impl.java:1294)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.executeFlowStep(AggregateAnalysisEngineController_impl.java:2302)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.controller.AggregateAnalysisEngineController_impl.process(AggregateAnalysisEngineController_impl.java:1229)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.handler.HandlerBase.invokeProcess(HandlerBase.java:118)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.handler.input.ProcessResponseHandler.cancelTimerAndProcess(ProcessResponseHandler.java:108)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.handler.input.ProcessResponseHandler.handleProcessResponseWithCASReference(ProcessResponseHandler.java:387)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.handler.input.ProcessResponseHandler.handle(ProcessResponseHandler.java:656)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.handler.HandlerBase.delegate(HandlerBase.java:149)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.handler.input.ProcessRequestHandler_impl.handle(ProcessRequestHandler_impl.java:973)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.spi.transport.vm.UimaVmMessageListener.onMessage(UimaVmMessageListener.java:107)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> org.apache.uima.aae.spi.transport.vm.UimaVmMessageDispatcher$1.run(UimaVmMessageDispatcher.java:70)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>>>>>>>>>        at
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>>>>>>>>>        at java.lang.Thread.run(Thread.java:619)
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>

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