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From Cedric Dumoulin <>
Subject Re: Tiles insert tag was Re: cvs commit: jakarta-struts/src/share/org/apache/...
Date Wed, 19 Mar 2003 19:19:39 GMT

David Graham wrote:

>>  No. The parent definition only declare the attributes relevant to 
>> the parent. A child (extending a parent) can add some new attributes.
>>  If an attribute is not used in a parent, you don't need to declare it.
>>  In your case, the attribute is used by the associated layout, but 
>> you want the layout to ignore it (to show nothing).
> Ok, I'll try the ignore attribute.  The change to insert tag has been 
> removed.  It's strange that the error only occurs in WAS 5 and not 
> Tomcat. 

  Yes, this is strange.
  I have already seen this problem with a server  replacing the empty 
string "" with a null  reference. In fact, the generated jsp code 
doesn't set the attribute at all if the string is empty, so the 
attribute is set to null ;-(. It is a kind of optimization that have a 
side effect.
  Maybe the same happen with WAS 5. For me, this is a bug. Also, maybe 
there is an option in WAS 5 to avoid such thing ...


>>  Cedric
> David
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