- Corrected mention of OntologyCache instead of Hashtable

html/up2to3.html

@@ -70,7 +70,7 @@ Alignent in <tt>align()</tt> is a <tt>URIAlignment</tt> and not
 a <tt>OWLAPIAlignment</tt> so it may be necessary to change it as well.</p>
 
 <p>Fortunately, the <tt>OWLAPIAlignment</tt> class already provides
-  the <tt>loadOntology( URI, Hashtable )</tt> method that loads the
+  the <tt>loadOntology( URI, OntologyCache )</tt> method that loads the
   required ontology and a <tt>loadInit( URI )</tt> method that will
   load the initial alignment.</p>