How to still get the Key-Value pair even though Value in the Hash is null

Hi,

I am getting the nodes from an xml file, like this

<#local titles = doc[XPATH] >

lets say for one element, this xpath does not exist. What I need to do is
that I need to replace the "null" with "empty".

But I am not even getting this key-value pair in the local variable
"titles", like Java Hash concept, if the value of the element in Hash is
null then entire element becomes null, right.

I am looking solution in XPath, to check if the xpath exists then get the
value of it otherwise put the value as "empty". But could not able to get
the solution.

If anybody knows how to do it in Freemarker or XPath, I will appreciate the
help.

Thanks.



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