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https://issues.apache.org/jira/browse/JEXL-237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Henri Biestro resolved JEXL-237.
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Resolution: Fixed
Fixed in JEXL-243
> Ability to restrict usage of certain names when declaring local variables
> -------------------------------------------------------------------------
>
> Key: JEXL-237
> URL: https://issues.apache.org/jira/browse/JEXL-237
> Project: Commons JEXL
> Issue Type: Wish
> Affects Versions: 3.1
> Reporter: Dmitri Blinov
> Assignee: Henri Biestro
> Priority: Minor
> Fix For: 3.2
>
>
> One of the errors the scriptwriter usually makes is an accidental override of
> certain context variables with his own local variables, which leads to nasty
> bugs detected only when script is executed. As of now there is only a small
> list of reserved words that can not be used as a valid variable name, and it
> is restricted to basic Jexl syntax keywords. When Jexl syntax is extended
> with custom functions and predefined context variables, its much easier for a
> local variable name to clash with predefined name, thus altering script
> execution further on. To exclude those errors it is needed that a custom name
> verification would exist, prohibiting the scripts from be successfully parsed.
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