DO NOT REPLY [Bug 21613] New: - nested:error tag stopped displaying error messages (of certain scenario) when upgraded from Struts1.1 R1 to Final version

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=21613

nested:error tag stopped displaying error messages (of certain scenario) when upgraded from Struts1.1 R1 to Final version

           Summary: nested:error tag stopped displaying error messages (of
                    certain scenario) when upgraded from Struts1.1 R1 to
                    Final version
           Product: Struts
           Version: 1.1 Final
          Platform: PC
        OS/Version: Windows NT/2K
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: Validator Framework
        AssignedTo: struts-dev@jakarta.apache.org
        ReportedBy: dulonz@talk21.com


1. SUMMARY:

nested:error tag stoped displaying error messages of a certain scenario when I 
upgraded from Struts1.1 R1 to Final version (also R2 version of Struts1.1 does 
not display the error message so it looks like the change was introduced in R2 
version.)

2. SCENARIO WHERE PROBLEM OCCURS:

This problem occurs as far as I can see on properties that I iterate on:

JSP extract:
...
<nested:iterate id="info" property="infoCollection" type="example.InfoBean">
   <nested:text property="title" />
   <nested:errors property="title" /> <!-- no error messages gets displayed 
here since R2 version of Struts 1.1 -->
<nested:iterate>
...

When I look at the html output of what the JSP produces, it is as follows:

...
<input type="text" name="infoCollection[0].title" />
...


In my Action class, here is an example of how it adds an error message:
...
errors.add("infoCollection[0].title", new ActionError("some.error.key"));
...

3. EXPECTATION: (what it should have done)
Display the error message in the html output in place of where this jsp code 
appears:

<nested:errors property="title" />

This worked in version R1 of Struts 1.1

4. THE PROBLEM:

The problem is that now that I am using the final version of 1.1, when an error 
message is added with an appropriate key, the error message does not show, but 
when I was using the R1 version of Struts 1.1, it did show the error message. 
Also, R2 seems to have the same problem has the final version...

I tried using <nested:errors/> and then it does show the error messages, but 
<nested:errors property="title"> does not. I tried using the "html" instead 
of "nested" ones but had no luck.

All other error messages that are not based on iterated properties displays 
correctly (however, in my application, I only have the one instance where I am 
using iterated properties that need to display the exact field that the errors 
occur).

5. FURTHER INFORMATION

I am using the Resin webserver. Also my code has not changed in between the 
upgrades (i.e. I tried reverting back to R1 and then the error messages got 
displayed). No exceptions are thrown and I after putting log statements, have 
ensured that the error messages gets added correctly.

R1, R2 and Final versions of Struts that I used are all milestone versions.

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