<cfscript>
foo = [1, 2, 3];

bar = javacast( "null", "");

baz = ( foo.len() ?: "can't do it captain");

frobozz = ( bar.len() ?: "can't do it captain");
</cfscript>

<cfoutput>
<ul>
    <li>baz: #baz#</li>
    <li>frobozz: #frobozz#</li>
</ul>
</cfoutput>