Re: Display String array in FTL

Monday, May 25, 2009, 10:53:17 AM, strutstwouser wrote:

> I looked at the PostalAddress object closer and find that in addition to the
> usual get/sets : 
>
>     public java.lang.String[] getAddressLine() {
>         return addressLine;
>     }
>
> and 
>
>     public void setAddressLine(java.lang.String[] addressLine) {
>         this.addressLine = addressLine;
>     }
>
> there are also methods like : 
>
>     public java.lang.String getAddressLine(int i) {
>         return addressLine[i];
>     }
>
> and 
>
>     public void setAddressLine(int i, java.lang.String value) {
>         addressLine[i] = value;
>     }
>
> When i removed these additional get/sets, it worked fine.
>
> I've attached the stacktrace ; 
> http://www.nabble.com/file/p23703551/stacktrace.txt stacktrace.txt  the NPE
> is at the bottom. Sorry i initially thought that was the primary exception.

At the first glance looks like a FreeMarker bug to me... Could you
tell what ${.version} prints?

For Attila, the trace was:

freemarker.template.TemplateModelException: Method public java.lang.String com.xyz.domain.PostalAddress.getAddressLine(int) threw an exception when invoked on com.xyz.domain.PostalAddress@30da30da
        at freemarker.ext.beans.SimpleMethodModel.exec(SimpleMethodModel.java:130)
        [...]
Caused by: java.lang.NullPointerException
        at freemarker.ext.beans.SimpleMemberModel.unwrapArguments(SimpleMemberModel.java:85)
        at freemarker.ext.beans.SimpleMethodModel.exec(SimpleMethodModel.java:106)

> Thanks,
> Joseph
>
>
>
>
>
> Daniel Dekany wrote:
>> 
>> Wednesday, May 20, 2009, 6:57:16 PM, strutstwouser wrote:
>> 
>>> Yes, the array has data.
>> 
>> And even if it hadn't, it should be an InvalidReferenceException,
>> never an NPE. But your report missed the exception trace with
>> locations... it's hard to find out what caused the NPE this way.
>> 
>>> I printed the same using Struts2 tag , like :
>>>
>>> <@s.property
>>> value="model.borrowers[0].party.legalAddress.addressLine[0]" />
>>>
>>> and it gives the value fine.
>>>
>>> The latest code i was trying was : 
>>>
>>> <#if model.borrowers[0].party.legalAddress.addressLine?exists>
>>>
>>> <#assign addressLines =
>>> model.borrowers[0].party.legalAddress.addressLine>
>>>
>>> <#list addressLines as addressLine>                                
>>>                                                         AddressLine0-> 
>>> ${addressLine}
>>> </#list>
>>> </#if>
>>>
>>> This breaks with the error : 
>>>
>>> freemarker.ext.servlet.ServletContextHashModel
>>>  cause: freemarker.template.TemplateModelException: ?size is unsupported
>>> for: freemarker.ext.beans.SimpleMethodModel
>> 
>> At which template line? In general, just include the whole stack trace
>> for all reports... maybe it's needless, but often it helps.
>> 
>>>>> There shouldn't be. Are you 100% sure the array has a first item which
>>>>> is not Java null, etc.?
>>>> 
>>>> Oh, and even if you have one of those, it should still throw
>>>> freemarker.core.InvalidReferenceException, not NPE. So... maybe the
>>>> problem is not exactly there, just around somewhere?
>> 
>> -- 
>> Best regards,
>>  Daniel Dekany
>> 
>> 
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>> 
>

-- 
Best regards,
 Daniel Dekany


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