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From Claus Ibsen <claus.ib...@gmail.com>
Subject Re: Bug in LevelDB aggregator? NPE when completionSize 1
Date Tue, 21 Jan 2014 15:28:15 GMT
Hi

Yeah you are welcome to raise a JIRA.
And as we love contributions, a bug fix is appreciated.

On Tue, Jan 21, 2014 at 4:25 PM, Stephan Burkard <sburkard@gmail.com> wrote:
> Hi
>
> By accident I noticed that when I configure a LevelDB aggregator
> persistence with completionSize = 1 (yes I know, this is kind of an
> aggregator that does not aggregate), I get the stacktrace below on every
> message.
>
> As soon as I set a completionSize > 1, everything runs fine.
>
> I guess this is a bug, since it worked fine with the old HawtDB repository.
> If completionSize = 1 is totally useless it would be better to throw an
> explicit error when starting the context.
>
> Should I create a Jira issue for this?
>
> Thanks
> Stephan
>
>
>
>
> java.lang.NullPointerException
>     at
> org.apache.camel.component.leveldb.LevelDBAggregationRepository.remove(LevelDBAggregationRepository.java:155)
>     at
> org.apache.camel.processor.aggregate.AggregateProcessor.onCompletion(AggregateProcessor.java:459)
>     at
> org.apache.camel.processor.aggregate.AggregateProcessor.doAggregation(AggregateProcessor.java:343)
>     at
> org.apache.camel.processor.aggregate.AggregateProcessor.doProcess(AggregateProcessor.java:247)
>     at
> org.apache.camel.processor.aggregate.AggregateProcessor.process(AggregateProcessor.java:179)
>     at
> org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72)
>     at
> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:398)
>     at
> org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:105)
>     at
> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:279)
>     at
> org.apache.camel.processor.DefaultErrorHandler.process(DefaultErrorHandler.java:56)
>     at
> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:166)
>     at org.apache.camel.processor.Pipeline.process(Pipeline.java:118)
>     at org.apache.camel.processor.Pipeline.process(Pipeline.java:80)
>     at
> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:398)
>     at
> org.apache.camel.spring.spi.TransactionErrorHandler.processByErrorHandler(TransactionErrorHandler.java:218)
>     at
> org.apache.camel.spring.spi.TransactionErrorHandler.process(TransactionErrorHandler.java:99)
>     at
> org.apache.camel.spring.spi.TransactionErrorHandler.process(TransactionErrorHandler.java:112)
>     at
> org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72)
>     at
> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:398)
>     at
> org.apache.camel.spring.spi.TransactionErrorHandler.processByErrorHandler(TransactionErrorHandler.java:218)
>     at
> org.apache.camel.spring.spi.TransactionErrorHandler$1.doInTransactionWithoutResult(TransactionErrorHandler.java:181)
>     at
> org.springframework.transaction.support.TransactionCallbackWithoutResult.doInTransaction(TransactionCallbackWithoutResult.java:33)
>     at
> org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:131)
>     at
> org.apache.camel.spring.spi.TransactionErrorHandler.doInTransactionTemplate(TransactionErrorHandler.java:174)
>     at
> org.apache.camel.spring.spi.TransactionErrorHandler.processInTransaction(TransactionErrorHandler.java:134)
>     at
> org.apache.camel.spring.spi.TransactionErrorHandler.process(TransactionErrorHandler.java:103)
>     at
> org.apache.camel.spring.spi.TransactionErrorHandler.process(TransactionErrorHandler.java:112)
>     at
> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
>     at
> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)
>     at
> org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:105)
>     at
> org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:87)
>     at
> org.apache.camel.component.jms.EndpointMessageListener.onMessage(EndpointMessageListener.java:103)
>     at
> org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:562)
>     at
> org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:500)
>     at
> org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:468)
>     at
> org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:325)
>     at
> org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:243)
>     at
> org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:1103)
>     at
> org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.executeOngoingLoop(DefaultMessageListenerContainer.java:1095)
>     at
> org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:992)
>     at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>     at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)



-- 
Claus Ibsen
-----------------
Red Hat, Inc.
Email: cibsen@redhat.com
Twitter: davsclaus
Blog: http://davsclaus.com
Author of Camel in Action: http://www.manning.com/ibsen
Make your Camel applications look hawt, try: http://hawt.io

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