This comment isn't helpful I know but I am very curious about this.
The code you quoted is a tag library call using the EL.  How is that
not part of the UI?  Are you writing controllers in JSP somehow?

Rachel

On Fri, May 7, 2010 at 2:47 PM, Aaron Freeman <aaron.free...@layerz.com> wrote:
> This isn't in the UI layer.  This is in a controller.  At any rate there is
> a simple work around, but this sure doesn't seem like it should be
> generating an error.  If a property doesn't exist on an object it sure seems
> like the test for empty=true should work, and not throw a runtime error.
>
> At any rate there are easy workarounds in this case but workarounds make the
> code uglier.
>
> Aaron
>
>
> On 5/7/2010 3:57 PM, Jon Stevens wrote:
>
> I don't know if there is a way and it isn't something I'd depend on in the
> UI layer. Think of [class] like you'd think of an interface. You really
> should only put implementations of interfaces into the context. Otherwise,
> I'd consider putting a Map in there for the effect you want.
> jon
>
> On Fri, May 7, 2010 at 1:43 PM, Aaron Freeman <aaron.free...@layerz.com>
> wrote:
>>
>> Bummer, what's the proper way to test if a property exists then, since
>> ${!empty [class].[property]} isn't the correct way?
>>
>> Thanks,
>>
>> Aaron
>>
>>
>> On 5/7/2010 3:07 PM, Jon Stevens wrote:
>>
>> That is what JBoss does, so I'd say that Caucho fixed a bug.
>> jon
>>
>> On Fri, May 7, 2010 at 12:59 PM, Aaron Freeman <aaron.free...@layerz.com>
>> wrote:
>>>
>>> We are system testing Resin 4.0.6 with our old code base and found a
>>> curiosity.  The following code used to work, regardless of what "type"
>>> "receipt" is:
>>>
>>> <c:if test="${!empty receipt.details}">
>>>
>>> Under Resin 3.0.x if receipt was a HashMap and had a "details" property
>>> then it would return "true".  If it was a HashMap and did not have a
>>> details property, it would correctly return false.  And (most
>>> importantly), if receipt was _any_ other class, including built in java
>>> classes, it would just return false.  With Resin 4.0.6 it now throws an
>>> error:
>>>
>>> 'details' is an unknown bean property of 'java.math.BigDecimal'
>>>
>>> That's not the expected behavior is it?
>>>
>>> Thanks,
>>>
>>> Aaron
>>>
>>
>
>
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>


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