[jira] [Created] (WW-4307) s:combobox is causing an error

["hari (JIRA)" <ji...@apache.org>]

hari created WW-4307:
------------------------

             Summary: s:combobox is causing an error 
                 Key: WW-4307
                 URL: https://issues.apache.org/jira/browse/WW-4307
             Project: Struts 2
          Issue Type: Bug
    Affects Versions: 2.3.16
         Environment: struts 2.3.16 version JDK 1.7 32-bit windows
            Reporter: hari
            Priority: Blocker


I have s:combobox and populating  a list of names from action class. In the jsp the list is populated but gives an error and the following textfields are not shown the error is as below:

SEVERE: Servlet.service() for servlet jsp threw exception

Error on line 57, column 9 in template/simple/combobox.ftl
stack.findString('top') is undefined.
It cannot be assigned to tmpListKey
The problematic instruction:
----------
==> assignment: tmpListKey=stack.findString('top') [on line 57, column 9 in template/simple/combobox.ftl]
 in user-directive s.iterator [on line 53, column 5 in template/simple/combobox.ftl]
----------

Java backtrace for programmers:
----------
freemarker.core.InvalidReferenceException: Error on line 57, column 9 in template/simple/combobox.ftl
stack.findString('top') is undefined.
It cannot be assigned to tmpListKey
	at freemarker.core.Assignment.accept(Assignment.java:111)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.IfBlock.accept(IfBlock.java:82)
	at freemarker.core.Environment.visit(Environment.java:221)
	at freemarker.core.MixedContent.accept(MixedContent.java:92)
	at freemarker.core.Environment.visit(Environment.java:221)



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