Re: Resin 3 + Struts problem with JSP compilation

From:

Daniel Pitts <googlegroupie@coloraura.com>

Newsgroups:

comp.lang.java.softwaretools

Date:

Tue, 02 Oct 2007 00:22:41 -0000

Message-ID:

<1191284561.265575.160990@50g2000hsm.googlegroups.com>

On Sep 10, 7:59 am, Ambar <ambar.he...@gmail.com> wrote:

Clearly you named something "null" in your JSP, since both

java.lang.Integer null;

and

null = (java.lang.Integer)pageContext.findAttribute("null");

are illegal Java.

As I mentioned, this code was working just fine with Resin 2x. There
is no variable named null :)
The part of the jsp causing the problem is:

<logic:iterate id="driverValues"
name="SingleUserLocReportInitializer" property="teamMembers"
type="java.util.Hashtable"><html:option value='<
%=driverValues.get("USER_ID").toString()%>'> <
%=driverValues.get("NAME").toString()%></html:option></logic:iterate>

My application uses the logic:iterate tag extensively, and Resin 3.1
is generating the following code for every single one of these
instances:

java.lang.Integer null;
null = (java.lang.Integer)pageContext.findAttribute("null");

Whereas, with Resin 2x, the generated code is this:
java.util.Hashtable driverValues;
driverValues =
(java.util.Hashtable)pageContext.findAttribute("driverValues");

Isn't <logic:iterate> a Struts tag? Is Struts related to Resin?

Either way, I'd use JSTL <c:forEach> in preference to third-party tags.

--
Lew

I don't really have a choice in the matter - the tag has been used
extensively throughout the app, and was working just fine with Resin
2. Its been in production for years now

TIA,
Ambar

What version of Resin 3 are you using? Older versions are more likely
to do strange type conversions (or not do type conversions).
I've noticed similar odd behavior on 3.0.14 and 3.0.19, but the same
JSPs work with 3.0.22.

Resin 3 is NOT backward compatible with Resin 2 in many ways, you're
likely to have to rework large portions of your webapp to get it
working. We've run into the same issues where I work.

Good luck,
Daniel.