[jira] Resolved: (SMXCOMP-751) Ensure that multiple threads can safely use the JBI endpoint Producer

["Gert Vanthienen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/activemq/browse/SMXCOMP-751?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gert Vanthienen resolved SMXCOMP-751.
-------------------------------------

    Resolution: Fixed

The JBI endpoint was caching the producer instance -- this should not be necessary as e.g. the Camel ProducerCache will also do that
Just returning a new instance of the producer and letting Camel handle the caching fixes this issue in http://svn.apache.org/viewvc?view=revision&revision=948819

> Ensure that multiple threads can safely use the JBI endpoint Producer
> ---------------------------------------------------------------------
>
>                 Key: SMXCOMP-751
>                 URL: https://issues.apache.org/activemq/browse/SMXCOMP-751
>             Project: ServiceMix Components
>          Issue Type: Bug
>          Components: servicemix-camel
>    Affects Versions: servicemix-camel-2010.01
>            Reporter: Gert Vanthienen
>            Assignee: Gert Vanthienen
>             Fix For: servicemix-camel-2010.02
>
>
> Currently, a single instance of a JbiProducer is used by the JbiEndpoint.  As soon as the producer is stopped, all references to the Producer become unusable.  Especially with custom code that accesses the Producer from multiple threads, this can easily lead to exceptions like the one below:
> {noformat}
> java.lang.NullPointerException
>   at org.apache.servicemix.camel.JbiBinding.createJbiMessageExchange(JbiBinding.java:148)
>   at org.apache.servicemix.camel.JbiBinding.makeJbiMessageExchange(JbiBinding.java:118)
>   at org.apache.servicemix.camel.CamelConsumerEndpoint.process(CamelConsumerEndpoint.java:57) 
>   at org.apache.servicemix.camel.JbiEndpoint$JbiProducer$1.call(JbiEndpoint.java:122) 
>   at org.apache.servicemix.camel.JbiBinding.runWithCamelContextClassLoader(JbiBinding.java:107)
>   at org.apache.servicemix.camel.JbiEndpoint$JbiProducer.process(JbiEndpoint.java:120)
> {noformat}

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