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https://issues.apache.org/jira/browse/CAMEL-6154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13608889#comment-13608889
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Claus Ibsen commented on CAMEL-6154:
------------------------------------
If you are using log4j, then can you check if you have enabled
{code}
log4j.throwableRenderer=org.apache.log4j.EnhancedThrowableRenderer
{code}
That option has a bug not logging the caused stacktraces, so the actual NPE you
now have is not in the error.log.
If so can you try again. Disabling that log4j option. So we can have the caused
stacktrace, to track down the NPE in camel-mail?
> NPE when using the imap mail component with quartz or the timer and pollEnrich
> ------------------------------------------------------------------------------
>
> Key: CAMEL-6154
> URL: https://issues.apache.org/jira/browse/CAMEL-6154
> Project: Camel
> Issue Type: Bug
> Components: camel-mail, camel-quartz
> Affects Versions: 2.10.3, 2.10.4
> Environment: Windows, Tomcat 7.0.32, java 7, Spring 3.1.4
> Reporter: Sven Smets
> Assignee: Claus Ibsen
> Labels: imap, pollenrich, quartz, timer
> Fix For: 2.10.5, 2.11.0
>
> Attachments: error log.txt
>
>
> There is a NPE when using the imap mail component with quartz or the timer
> and pollEnrich as dicussed here:
> http://camel.465427.n5.nabble.com/Schedule-file-mail-endpoint-td3356666.html#a3357538
> I reproduced it on version 2.10.3 and 2.10.4 with
> <route id="myTest">
> <from uri="timer://foo?fixedRate=true&period=10000"/>
> <pollEnrich uri="imap://userName@hostName?password=***"/>
> <to uri="log:testroute?showAll=true&level=INFO"/>
> </route>
> We need to use it with the quartz component (so we can use a cron
> expression), but get the same error
> <route id="myTest">
> <from uri="quartz://testTimer?cron=0+*+*+*+*+?"/>
> <pollEnrich uri="imap://userName@hostName?password=***"/>
> <to uri="log:testroute?showAll=true&level=INFO"/>
> </route>
> 11/03/2013 10:32:04 [DefaultQuartzScheduler-context_Worker-1] ERROR
> org.apache.camel.processor.DefaultErrorHandler - Failed delivery for
> (MessageId: ID-W7-009430-52415-1362994261595-0-3 on ExchangeId:
> ID-W7-009430-52415-1362994261595-0-2). Exhausted after delivery attempt: 1
> caught: org.apache.camel.CamelExchangeException: Error occurred during
> aggregation. Exchange[Message: [Body is null]]. Caused by:
> [org.apache.camel.RuntimeCamelException - Failed to extract body due to:
> null. Exchange: Exchange[MailMessage:
> com.sun.mail.imap.IMAPMessage@411a3fe4]. Message:
> com.sun.mail.imap.IMAPMessage@411a3fe4]
> org.apache.camel.CamelExchangeException: Error occurred during aggregation.
> Exchange[Message: [Body is null]]. Caused by:
> [org.apache.camel.RuntimeCamelException - Failed to extract body due to:
> null. Exchange: Exchange[MailMessage:
> com.sun.mail.imap.IMAPMessage@411a3fe4]. Message:
> com.sun.mail.imap.IMAPMessage@411a3fe4]
> at
> org.apache.camel.processor.PollEnricher.process(PollEnricher.java:194)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:91)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:334)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:220)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.RouteContextProcessor.processNext(RouteContextProcessor.java:46)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.interceptor.DefaultChannel.process(DefaultChannel.java:308)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.Pipeline.process(Pipeline.java:117)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.Pipeline.process(Pipeline.java:80)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.RouteContextProcessor.processNext(RouteContextProcessor.java:46)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.UnitOfWorkProcessor.processAsync(UnitOfWorkProcessor.java:150)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.UnitOfWorkProcessor.process(UnitOfWorkProcessor.java:117)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.RouteInflightRepositoryProcessor.processNext(RouteInflightRepositoryProcessor.java:48)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.loadbalancer.QueueLoadBalancer.process(QueueLoadBalancer.java:44)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:99)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.processor.loadbalancer.QueueLoadBalancer.process(QueueLoadBalancer.java:71)[camel-core-2.10.4.jar:2.10.4]
> at
> org.apache.camel.component.quartz.QuartzEndpoint.onJobExecute(QuartzEndpoint.java:113)[camel-quartz-2.10.4.jar:2.10.4]
> at
> org.apache.camel.component.quartz.CamelJob.execute(CamelJob.java:61)[camel-quartz-2.10.4.jar:2.10.4]
> at
> org.quartz.core.JobRunShell.run(JobRunShell.java:216)[quartz-1.8.5.jar:]
> at
> org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:549)[quartz-1.8.5.jar:]
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