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Message-ID: <499426A5.5080303@apache.org>
Date: Thu, 12 Feb 2009 13:39:49 +0000
From: Mark Thomas <markt@apache.org>
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To: Tomcat Users List <users@tomcat.apache.org>
Subject: Re: Problem with lib version jasper-el.jar on tomcat 6.0.18
References: <ed9912d60902120443qc9cfd50y14902454ee57d77c@mail.gmail.com>
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ruben rubens wrote:
> Hello,
> 
> I found a posible bug or weird performance with tomcat 6.0.18. I'm using
> faces  for MVC, when the context is setting the values for bean atributes
> from an empty input (input with null value) I don�t finally get a null value
> as I expect, I finally get a primitive default value. For example, If I bind
> my java.lang.Float to an input text and I do not fill any value in it, I get
> a 0.0 value in my Float atribute, and I expected  null (like the original
> value).
> 
> The libraries versions that I�m using are listed below:
> 
>       <dependency>
>             <groupId>javax.faces</groupId>
>             <artifactId>jsf-api</artifactId>
>             <version>1.2_04</version>
>         </dependency>
>         <dependency>
>             <groupId>javax.faces</groupId>
>             <artifactId>jsf-impl</artifactId>
>             <version>1.2_04</version>
>         </dependency>
> 
> In tomcat 6.0.13 I�m not getting the same behaivour. I get that I expect. I
> think the problem is with this jar: jasper-el.jar.
> 
> Is there an explanation for these? In my opinion, I don�t think is a good
> performance get a value from a form that nobody has put there.

That behaviour is required by the EL spec (It was a bug that was fixed.). You
can disable the spec compliant behaviour by using
org.apache.el.parser.COERCE_TO_ZERO=false

Mark



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