I’ve seen this behavior a couple of times over the years, and I’m sorry that I
can’t recall the exact issue when I’ve tracked it down, but basically something
is null, probably either the “samples” list, or an element in that list.
-Jasper
> On Oct 17, 2015, at 10:23 AM, Lukasz Lenart <lukaszlen...@apache.org> wrote:
>
> Do you use that JSP outside of an action? Struts version? I've been
> testing with the latest SNAPSHOT and no such problem
>
>
> 2015-10-16 11:28 GMT+02:00 Yaragalla Muralidhar <yaragallamur...@gmail.com>:
>> Hi ,
>> the following is the code in jsp.
>>
>> <div><s:checkboxlist name="asd" list="samples" cssStyle="line-height:
>> 35px;" /></div>
>>
>> samples is an arraylist of strings.
>>
>> when i put the above tag i am getting the following error. Please help me
>> to rectify this.
>>
>>
>> Error on line 30, column 13 in template/simple/checkboxlist.ftl
>> stack.findValue('top') is undefined.
>> It cannot be assigned to itemKey
>> The problematic instruction:
>> ----------
>> ==> assignment: itemKey=stack.findValue('top') [on line 30, column 13 in
>> template/simple/checkboxlist.ftl]
>> in user-directive s.iterator [on line 25, column 1 in
>> template/simple/checkboxlist.ftl]
>> in include "/${parameters.templateDir}/simple/checkboxlist.ftl" [on line
>> 24, column 1 in template/xhtml/checkboxlist.ftl]
>> ----------
>>
>> Java backtrace for programmers:
>> ----------
>> freemarker.core.InvalidReferenceException: Error on line 30, column 13 in
>> template/simple/checkboxlist.ftl
>> stack.findValue('top') is undefined.
>> It cannot be assigned to itemKey
>> 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)
>> at freemarker.core.Environment.visit(Environment.java:310)
>> at freemarker.core.UnifiedCall.accept(UnifiedCall.java:130)
>> at freemarker.core.Environment.visit(Environment.java:221)
>> at freemarker.core.IfBlock.accept(IfBlock.java:82)
>> at freemarker.core.Environment.visit(Environment.java:221)
>>
>>
>>
>>
>> *Thanks and Regards,*
>> Muralidhar Yaragalla.
>>
>> *http://yaragalla.blogspot.in/ <http://yaragalla.blogspot.in/>*
>
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