Re: [xmlblaster] NullPointerException when trying to use ConsumableQueue

[Michele Laghi <laghi at swissinfo.org>]

Hi Aaron,
thanks for the tip. the NPE is now fixed and committed.

Greetings
Michele

Aaron Silinskas wrote:
> Hello,
>   I'm trying to publish messages using ConsumableQueue like this:
>
> TopicProperty topicProp = new TopicProperty(global);
> topicProp.setMsgDistributor("ConsumableQueue,1.0");
> pq.setTopicProperty(topicProp);
>
>
> xmlBlaster reported an exception when receiving the message:
>
> java.lang.NullPointerException
>     at 
> org.xmlBlaster.engine.distributor.plugins.ConsumableQueuePlugin.processHistoryQueue(ConsumableQueuePlugin.java:192) 
>
>     at 
> org.xmlBlaster.engine.distributor.plugins.ConsumableQueueWorker.run(ConsumableQueueWorker.java:36) 
>
>     at 
> EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:732) 
>
>     at java.lang.Thread.run(Unknown Source)
> [Sep 29, 2004 12:12:40 PM ERROR 
> XmlBlaster.DispatchWorkerPool.xmlBlaster_192_168_1_101_3412-1 
> ConsumableQueuePlugin] processQueue: null
>
>
> I did a quick trace and got rid of the exception by changing 
> "queue/history/maxEntriesCache" and "queue/history/maxEntries" back to 
> the default of 10 (I had set it to 0). I believe I had set the queue to 
> 0 when trying to address this issue: 
> http://www.xmlblaster.org/mhonarc-xmlBlaster/msg02003.html
>
>  I'm off to test my ConsumableQueue code, just figured you may want to 
> know.
>
> Thanks,
> Aaron


--
Michele Laghi
mailto:laghi at swissinfo.org
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