ColdFusion 9's IsNull() Works On Non-Struct Objects

code-1.cfm

<cfif (
	isStruct( someValue ) &&
	!isNull( someValue.someKey )
	)>

	<!--- Do some conditional logic here... --->

</cfif>

code-2.cfm

<!--- Create a string value. --->
<cfset myString = "Boo ya!" />

<!--- Check for a property of it. --->
String Key Null: #isNull( myString.someKey )#

code-3.cfm

<!--- Create a string value. --->
<cfset myString = "Boo ya!" />

<!--- Check for a property of it. --->
String Key Exists: #structKeyExists( myString, "someKey" )#