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Date: Tue, 18 Sep 2007 01:02:35 -0700 (PDT)
From: Piotr <krzepczak@gmail.com>
To: users@myfaces.apache.org
Subject: Re: Does MyFaces 1.2 require JSP 2.1?
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I've upgraded MyFaces to 1.2 version, facelets to 1.1.12 ver and try to run
my app on the Tomcat 6.0.14.
During startup I receive following error msg:
SEVERE: Exception sending context initialized event to listener instance of
class org.apache.myfaces.webapp.StartupServletContextListener
java.lang.LinkageError: loader constraint violation: when resolving
interface method
"javax.servlet.jsp.JspApplicationContext.addELResolver(Ljavax/el/ELResolver;)V"
the class loader (instance of org/apache/catalina/loader/WebappClassLoader)
of the current class, org/apache/myfaces/webapp/DefaultFacesInitializer, and
the class loader (instance of
org/apache/catalina/loader/StandardClassLoader) for resolved class,
javax/servlet/jsp/JspApplicationContext, have different Class objects for
the type javax/el/ELResolver used in the signature

Any idea?

P.


Francisco Passos wrote:
> 
> Will the Myfaces team consider the possibility of providing similar
> support
> for non-JSP 2.1 containers using facelets?
> 
> That would be very welcome :)
> 
> On 7/19/07, Matthias Wessendorf <matzew@apache.org> wrote:
>>
>> nice!
>>
>> that's a cool feature.
>>
>> -M
>>
>> On 7/19/07, Jesse Alexander (KSFD 121)
>> <alexander.jesse@credit-suisse.com> wrote:
>> > No..
>> > RI just makes a test on the JSP-version and disables certain stuff,
>> when
>> > it detects
>> > a J2EE 1.4 environment (as in TC 5 and WLS 9.2). It then relies on
>> > facelets
>> > to provide certain functionality...
>> >
>> > Sounds like MyFaces is a bit harsher on the user here than the RI.
>> >
>> > OK... JSF 1.2 officially needs JEE 5.
>> > BUT... 1:0 for RI to allow for the gracefull degradation.
>> >
>> > Just set up a 1.2 RI-app in TC 5.x and watch the log when starting up.
>> > You will notice some entries like
>> > INFO: JSF1027: [null] The ELResolvers for JSF were not registered with
>> > the JSP container.
>> >
>> > See what I mean?
>> >
>> > regards
>> > Alexander
>> >
>> >
>> > -----Original Message-----
>> > From: Andrew Robinson [mailto:andrew.rw.robinson@gmail.com]
>> > Sent: Thursday, July 19, 2007 7:24 PM
>> > To: MyFaces Discussion
>> > Subject: Re: Does MyFaces 1.2 require JSP 2.1?
>> >
>> > I would ask the facelets list then. According to the JSF
>> > specification, JSP 2.1 and Servlet 2.5 support is required for JSF
>> > 1.2.
>> >
>> > On 7/19/07, mraible <matt@raibledesigns.com> wrote:
>> > >
>> > > I am using Facelets - that's why I find it strange. I'm able to use
>> > Sun's RI
>> > > (the latest version) in place of MyFaces in the same application and
>> > > everything works fine.
>> > >
>> > > Matt
>> > >
>> > >
>> > > Andrew Robinson-5 wrote:
>> > > >
>> > > > JSF 1.2 requires JSP 2.1 unless you use facelets.
>> > > >
>> > > > I believe you have to run Tomcat 6 as a minimum version (servlet
>> 2.5
>> > > > support is required)
>> > > >
>> > > > On 7/19/07, mraible <matt@raibledesigns.com> wrote:
>> > > >>
>> > > >> I should mention: I get the error below on startup when deploying
>> > on
>> > > >> Tomcat
>> > > >> 5.0.25. If I change from MyFaces to Sun's RI and deploy on Tomcat
>> > 5.0.25
>> > > >> again, no error.
>> > > >>
>> > > >> Matt
>> > > >>
>> > > >>
>> > > >> mraible wrote:
>> > > >> >
>> > > >> > From what I can tell, MyFaces 1.2 requires JSP 2.1. I developed
>> a
>> > quick
>> > > >> > prototype using MyFaces 1.2 + Facelets 1.1.13 and I get the
>> > following
>> > > >> > error on startup:
>> > > >> >
>> > > >> > Exception sending context initialized event to listener instance
>> > of
>> > > >> class
>> > > >> > org.apache.myfaces.webapp.StartupServletContextListener
>> > > >> > java.lang.NoSuchMethodError:
>> > > >> >
>> > > >>
>> >
>> javax.servlet.jsp.JspFactory.getJspApplicationContext(Ljavax/servlet/Ser
>> > vletContext;)Ljavax/servlet/jsp/JspApplicationContext;
>> > > >> >         at
>> > > >> >
>> > > >>
>> >
>> org.apache.myfaces.webapp.DefaultFacesInitializer.initFaces(DefaultFaces
>> > Initializer.java:102)
>> > > >> >         at
>> > > >> >
>> > > >>
>> >
>> org.apache.myfaces.webapp.StartupServletContextListener.contextInitializ
>> > ed(StartupServletContextListener.java:57)
>> > > >> >
>> > > >> > If I deploy my app to Tomcat 6, this problem doesn't exist. If I
>> > change
>> > > >> > from MyFaces 1.2 to Sun's RI 1.2_04, this problem doesn't exist
>> > either.
>> > > >> > For this reason, it appears to me that MyFaces 1.2 requires JSP
>> > 2.1.
>> > > >> >
>> > > >> > Cheers,
>> > > >> >
>> > > >> > Matt
>> > > >> >
>> > > >>
>> > > >> --
>> > > >> View this message in context:
>> > > >>
>> >
>> http://www.nabble.com/Does-MyFaces-1.2-require-JSP-2.1--tf4112432.html#a
>> > 11693503
>> > > >> Sent from the MyFaces - Users mailing list archive at Nabble.com.
>> > > >>
>> > > >>
>> > > >
>> > > >
>> > >
>> > > --
>> > > View this message in context:
>> >
>> http://www.nabble.com/Does-MyFaces-1.2-require-JSP-2.1--tf4112432.html#a
>> > 11693795
>> > > Sent from the MyFaces - Users mailing list archive at Nabble.com.
>> > >
>> > >
>> >
>>
>>
>> --
>> Matthias Wessendorf
>>
>> further stuff:
>> blog: http://matthiaswessendorf.wordpress.com/
>> mail: matzew-at-apache-dot-org
>>
> 
> 

-- 
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