On 10/07/2010 19:51, Mikolaj Rydzewski wrote:
> Hi,
>
> There's a JSF webapp I maintain. It runs fine on Tomcat 6.0.18. Recently
> I wanted to migrate environment to 6.0.26 but I ran into problems. Due
> to lack of time I just dropped migration idea. Unfortunately the same
> problem exists with Tomcat 6.0.28.
>
> Basically, the problem is with handling JSF specific expressions from
> within tag files. I don't think that use of tag files is forbidden with
> JSF. But I'm not 100% sure though.
>
> So, following code works when in use directly in JSP page:
>
> <h:outputText value="#{app.username}"/>
>
> But when used in a tag file it produces:
>
> #{app.username}
>
> There are no error messages in logs.
>
> So, it used to work before because of some misimplementation in previous
> versions.
This is the reason. It is the result of fixing
https://issues.apache.org/bugzilla/show_bug.cgi?id=48668
In short, no implicit.tld has been defined for the tag library so the
spec mandates that a JSP version of 2.0 is used. JSP 2.0 doe snot
support the #{...} syntax for EL so it gets treated as template text.
Prior to the fix, Tomcat incorrectly used JSP 2.1 for implicit tag
libraries.
Mark
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