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https://issues.apache.org/jira/browse/VELOCITY-935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17291611#comment-17291611
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Claude Brisson commented on VELOCITY-935:
-----------------------------------------
I will add a notice to the upgrading page of the 2.x versions, but won't fix
it. Reverting to a broken operator precedence, even with a compatibility flag,
seems a no-go to me. Hopefully, you can track such uses in your templates with
the appropriate regex.
> Negation dos not work correctly after update from 1.6 to 2.2
> ------------------------------------------------------------
>
> Key: VELOCITY-935
> URL: https://issues.apache.org/jira/browse/VELOCITY-935
> Project: Velocity
> Issue Type: Bug
> Components: Engine
> Affects Versions: 2.2
> Reporter: Al Bundy
> Assignee: Claude Brisson
> Priority: Major
>
> With 1.6 we used this
>
> {code:java}
> #if ( ! "$!testrun" == "true" )
> ...
> #end{code}
> This ensures that the code is only executed if current run is not a testrun
> ($testrun false or empty).
>
> Sine update to 2.2 this does not to work.
> In my case $testrun was false, but code was not executed.
> To get this to work I had to use brackets around the equals-check
> {code:java}
> #if ( ! ("$!testrun" == "true") )
> ...
> #end
> {code}
> This breaks the logic of a lot of templates...
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