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From "Henri Yandell (JIRA)" <>
Subject [jira] Updated: (EL-8) [el] Implementation of parseExpression does not implement spec
Date Tue, 04 Sep 2007 17:52:44 GMT


Henri Yandell updated EL-8:

    Attachment: EL-8-Jamie.patch

An svn diff created from Jamie's unit test and bugfix. 

> [el] Implementation of parseExpression does not implement spec
> --------------------------------------------------------------
>                 Key: EL-8
>                 URL:
>             Project: Commons EL
>          Issue Type: Bug
>    Affects Versions: 1.0
>         Environment: Operating System: All
> Platform: All
>            Reporter: Jamie Taylor
>            Assignee: Henri Yandell
>             Fix For: 1.1
>         Attachments: EL-8-Jamie.patch, EL-8.patch, function-binding.txt,,
> The implementation of parseExpression in the EL expression evaluator does not conform
to the JSP 2.0 specification.  The javadoc for the fMapper argument states that 
> "The ExpressionEvaluatormustnotholdontotheFunctionMapperreferenceafter returning fromparseExpression().
TheExpression object returned must invoke the same functions regardless of whether the mappings
in the providedFunctionMapper instance change between calling ExpressionEvaluator.parseExpression()
> The test case which I will attach clearly shows that this is not the case.
> Why hasn't anybody noticed this before, you may ask?  I suspect that the current implementation
of Tomcat never updates the bindings in its function mapper once one is constructed, since
the functions are defined at web-app load time and can't be updated after that.

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