[jira] Commented: (CAMEL-1057) XQuery creates an empty out message that makes it impossible to chain more processors behind it

["Claus Ibsen (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/activemq/browse/CAMEL-1057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=47160#action_47160 ] 

Claus Ibsen commented on CAMEL-1057:
------------------------------------

Balazs could you re attach the patch with the ASF license granted. We can not accept patches without this license.

The general rule with JIRA is *not* to attach files while creating the ticket. Only attach files *afterwards* since then there is a checkbox where you can grant the ASF license.

> XQuery creates an empty out message that makes it impossible to chain more processors behind it
> -----------------------------------------------------------------------------------------------
>
>                 Key: CAMEL-1057
>                 URL: https://issues.apache.org/activemq/browse/CAMEL-1057
>             Project: Apache Camel
>          Issue Type: Bug
>          Components: camel-saxon
>    Affects Versions: 1.4.0, 1.5.0
>            Reporter: Balázs Zsoldos
>            Priority: Critical
>             Fix For: 1.5.1
>
>         Attachments: XQueryBuilder.java.patch
>
>
> When using XQuery the getOut() function is called on the message so if it is not used at a place where the out is filled an empty out message will be created. With this xquery cannot be used for example in setBody, setHeader... and anywhere where the out is not filled.
> An example where this causes real trouble:
> <choice>
>   <when>
>     <xquery>...</xquery>
>     <to uri="direct:follow" />
>   </when>
> </choice>
> ...
> <from uri="direct:follow">
> <to ...>
> <to ...>
> In the patch the out property in the xquery context is filled only if it is not null. With it all of my pipelines seem to work well for me.

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