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https://issues.apache.org/activemq/browse/SM-1926?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=57838#action_57838
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Juanjo Vazquez commented on SM-1926:
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We're having this annoying trace too.
> Statistics Service throws NPE with DynamicEndpoints
> ---------------------------------------------------
>
> Key: SM-1926
> URL: https://issues.apache.org/activemq/browse/SM-1926
> Project: ServiceMix
> Issue Type: Bug
> Components: servicemix-core
> Affects Versions: 3.3.1
> Reporter: Mark Ford
> Priority: Minor
>
> I am seeing NPE's in the console when using dynamic endpoints with the
> HttpComponent.
> The stacktraces don't seem to impact the message exchanges. One workaround is
> to simply disable the service in conf/servicemix.xml. It would be easy to
> patch the code to avoid the NPE but I'm not sure whether the dynamic
> endpoints should be included in the stats and if so why the StatsService
> doesn't pick up on their registration.
> Trace from accepting an exchange:
> WARN - DeliveryChannelImpl - Error calling listener: null
> java.lang.NullPointerException
> at
> org.apache.servicemix.jbi.monitoring.StatisticsService.onExchangeAccepted(StatisticsService.java:253)
> at
> org.apache.servicemix.jbi.monitoring.StatisticsService$1.exchangeAccepted(StatisticsService.java:167)
> at
> org.apache.servicemix.jbi.messaging.DeliveryChannelImpl.processInBound(DeliveryChannelImpl.java:611)
> at
> org.apache.servicemix.jbi.nmr.flow.AbstractFlow.doRouting(AbstractFlow.java:172)
> at
> org.apache.servicemix.jbi.nmr.flow.seda.SedaFlow.doRouting(SedaFlow.java:168)
> at
> org.apache.servicemix.jbi.nmr.flow.seda.SedaQueue$1.run(SedaQueue.java:134)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:619)
> Trace from sending an exchange:
> WARN - DeliveryChannelImpl - Error calling listener: null
> java.lang.NullPointerException
> at
> org.apache.servicemix.jbi.monitoring.StatisticsService.onExchangeSent(StatisticsService.java:235)
> at
> org.apache.servicemix.jbi.monitoring.StatisticsService$1.exchangeSent(StatisticsService.java:164)
> at
> org.apache.servicemix.jbi.messaging.DeliveryChannelImpl.doSend(DeliveryChannelImpl.java:380)
> at
> org.apache.servicemix.jbi.messaging.DeliveryChannelImpl.sendSync(DeliveryChannelImpl.java:471)
> at
> org.apache.servicemix.jbi.messaging.DeliveryChannelImpl.sendSync(DeliveryChannelImpl.java:443)
> at
> org.apache.servicemix.common.EndpointDeliveryChannel.sendSync(EndpointDeliveryChannel.java:115)
> at
> org.apache.servicemix.common.endpoints.SimpleEndpoint.sendSync(SimpleEndpoint.java:74)
> at
> org.apache.servicemix.camel.CamelConsumerEndpoint.process(CamelConsumerEndpoint.java:108)
> at
> org.apache.servicemix.camel.JbiEndpoint$JbiProducer.process(JbiEndpoint.java:94)
> at
> org.apache.camel.impl.ProducerCache.sendExchange(ProducerCache.java:151)
> at org.apache.camel.impl.ProducerCache.send(ProducerCache.java:88)
> at
> org.apache.camel.impl.DefaultProducerTemplate.send(DefaultProducerTemplate.java:93)
> at
> org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:110)
> at
> org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:116)
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