My apologies for not posting more information.  This was such a basic
issue I assumed that someone would know about it.  The real question is
are people actively doing such things with the JSTL / Struts
combination?

As you can see I have also modified some of the tags so I assumed
someone would assume I botched them.  In this trace I have modified
NestedWriteTag (the only change was to make it a subclass of my
WriteTag, which I have heavily modified) but that has not been executed.

Thanks for your help.

Regards

Edgar


> -----Original Message-----
> From: David M. Karr [mailto:dmkarr@;earthlink.net] 
> Sent: Wednesday, November 06, 2002 10:00 AM
> To: [EMAIL PROTECTED]
> Subject: Re: FW: Struts 1.0.2, Nested 1.0 and Standard Tags 1.0.2


>>>>> "Edgar" == Edgar Dollin <[EMAIL PROTECTED]> writes:

>     Edgar> I posted this on struts-user and there were no takers.  I
didn't see any
>     Edgar> bugs like this posted and was wondering if this was truly a
bug worth
>     Edgar> posting since I am not running 1.1b with JSTL.
 
>     Edgar> The only workaround I could find was to re-write the c:set
as a very simple
>     Edgar> tag.

> Did you post the exact code you're trying to compile, along with the
exact stack trace?



Diff for my NestedWriteTag
60c60
< package tags;
---
> package org.apache.struts.taglib.nested.bean;
63d62
< import org.apache.struts.taglib.nested.bean.*;
66c65
< 
---
> import org.apache.struts.taglib.bean.WriteTag;



A sample piece of code which fails.

<html:form action='myaction' method='post'>
        <nested:iterate property='myarraylist'>
                <c:set var="myChoiceValue" scope='request'>
                        <nested:write property='myNestedChoiceValue'>
                </c:set>
                <c:set var="myChoiceLabel" scope='request'>
                        <nested:write property='myNestedChoiceLabel'>
                </c:set>
                <nested:select property='myChoice'>
                        <html:options 
                                name='<%=(String)
request.getAttribute(myChoiceValue)%>'
                                labelName='<%=(String)
request.getAttribute(myChoiceValue)%>'
                        />
                </nested:select>
        </nested:iterate>
</html:form>



Stack trace - from the browser since this was a jsp runtime error

500 Servlet Exception
java.lang.NullPointerException
        at
org.apache.struts.taglib.nested.NestedPropertyHelper.getNestedProperty(N
estedPropertyHelper.java:174)
        at
org.apache.struts.taglib.nested.NestedPropertyHelper.getNestedProperty(N
estedPropertyHelper.java:195)
        at
org.apache.struts.taglib.nested.NestedPropertyHelper.setNestedProperties
(NestedPropertyHelper.java:242)
        at tags.NestedWriteTag.doStartTag(NestedWriteTag.java:90)
        at
_web_22dinf._jsp._reportfilters__jsp._jspService(/WEB-INF/jsp/reportFilt
ers.jsp:193)
        at com.caucho.jsp.JavaPage.service(JavaPage.java:75)
        at com.caucho.jsp.Page.subservice(Page.java:485)
        at
com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:182
)
        at
com.caucho.server.http.Invocation.service(Invocation.java:311)
        at
com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135)
        at
com.caucho.server.http.QRequestDispatcher.forward(QRequestDispatcher.jav
a:213)
        at
com.caucho.server.http.QRequestDispatcher.forward(QRequestDispatcher.jav
a:100)
        at
com.caucho.server.http.QRequestDispatcher.forward(QRequestDispatcher.jav
a:77)
        at
org.apache.struts.action.ActionServlet.processActionForward(ActionServle
t.java:1759)
        at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1596)
        at
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:510)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:165)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:103)
        at
com.caucho.server.http.FilterChainServlet.doFilter(FilterChainServlet.ja
va:96)
        at filters.programSecurity.doFilter(programSecurity.java:84)
        at
com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java
:88)
        at filters.checkLogon.doFilter(checkLogon.java:81)
        at
com.caucho.server.http.FilterChainFilter.doFilter(FilterChainFilter.java
:88)
        at
com.caucho.server.http.Invocation.service(Invocation.java:311)
        at
com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135)
        at
com.caucho.server.http.RunnerRequest.handleRequest(RunnerRequest.java:34
2)
        at
com.caucho.server.http.RunnerRequest.handleConnection(RunnerRequest.java
:272)
        at com.caucho.server.TcpConnection.run(TcpConnection.java:137)
        at java.lang.Thread.run(Thread.java:484)
                


-- 
===================================================================
David M. Karr          ; Java/J2EE/XML/Unix/C++
[EMAIL PROTECTED]   ; SCJP



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