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Subject: RE: tomcat 4.1.10 mishandling nested variables in tags?
Date: Mon, 16 Sep 2002 16:27:28 -0400
Message-ID: <66337F04F2A1E440BF87F2080B5F5370623F79@madison.dc.Blackboard.com>
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Thread-Topic: tomcat 4.1.10 mishandling nested variables in tags?
Thread-Index: AcJafWbDWLPQvyCyRhinnBPlmZUgyQDQbL3g
From: "Tim Moore" <tmoore@blackboard.com>
To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
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This workaround doesn't solve the problem for me.  In the generated =
classes for my JSPs, my scripting variable is only being set after =
doAfterBody is called on the tag handler (with pooling either enabled or =
disabled) even though the scripting variable scope is set to NESTED.  =
This all worked OK w/ TC 3.3.x.

--=20
Tim Moore / Blackboard Inc. / Software Engineer
1899 L Street, NW / 5th Floor / Washington, DC 20036
Phone 202-463-4860 ext. 258 / Fax 202-463-4863


> -----Original Message-----
> From: Jacob Heric [mailto:jheric@Emery-Waterhouse.com]=20
> Sent: Thursday, September 12, 2002 12:53 PM
> To: 'Tomcat Users List'
> Subject: RE: tomcat 4.1.10 mishandling nested variables in tags?
>=20
>=20
>=20
> I upgraded to 4.1.10 and got some similar, strange=20
> behaviour with variables in my tags showing up=20
> null. =20
>=20
> Here is the work around I used:
>=20
> I disabled tag handler pooling on the jsp page compiler=20
> in the global web.xml file as follows:
>=20
> at $CATALINA_BASE/conf/web.xml I added:
>=20
>     <servlet>
>         <servlet-name>jsp</servlet-name>
>        =20
> <servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
>         <init-param>
>             <param-name>logVerbosityLevel</param-name>
>             <param-value>DEBUG</param-value>
>         </init-param>
>         <init-param>
>             <param-name>enablePooling</param-name>
>             <param-value>false</param-value>
>         </init-param>       =20
>         <load-on-startup>3</load-on-startup>
>     </servlet>
>=20
> I am no longer having any problems with my tag libs.
>=20
> Jacob
>=20
>=20
> -----Original Message-----
> From: Daniel Schmid [mailto:dschmid@avguide.ch]
> Sent: Thursday, September 12, 2002 12:46 PM
> To: 'Tomcat Users List'
> Subject: AW: tomcat 4.1.10 mishandling nested variables in tags?
>=20
>=20
> Is exactly the same for me.
>=20
> I work with includes in the index.jsp. All the included=20
> template which uses a tag seem to make troubles in 4.1.10.=20
> the same app works like a charm in 4.0.4 with jasper 1.
>=20
> Daniel Schmid
>=20
> > -----Urspr=FCngliche Nachricht-----
> > Von: Dave Townsend [mailto:dave.townsend@bigfoot.com]
> > Gesendet: Donnerstag, 12. September 2002 15:49
> > An: tomcat-user@jakarta.apache.org
> > Betreff: tomcat 4.1.10 mishandling nested variables in tags?
> >=20
> >=20
> > Just upgraded to 4.1.10 and found that my webapp no longer
> > functions. I have tracked this down to a tag that uses nested=20
> > tags. On the old version (4.0.4), immediately after the=20
> > doStartTag call, the variables are declared for the jsp page,=20
> > and their values read from the pageContext, then the jsp=20
> > content of the tag is executed. On the new version after the=20
> > doStartTag, the variables are declared and set to null and=20
> > only have their values updated after the jsp content has been=20
> > executed once. This means that all the variables are null on=20
> > the first run through the tag which as far as I understand=20
> > the spec is not correct.
> >=20
> > Is there any fix for this?
> >=20
> > Dave
> >=20
> > --
> > "To successfully keep robbers out of your house put six locks
> > on your door. When you go out, lock every other one. No=20
> > matter how long somebody stands there picking the locks, they=20
> > are always locking three."

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