Update SimpleDateFormat URL. BugID 24993 by Jason

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@275693 13f79535-47bb-0310-9956-ffa450edef68

docs/manual/CoreTasks/tstamp.html

@@ -41,7 +41,7 @@ probably in an initialization target.</p>
 The Tstamp task supports a <code>&lt;format&gt;</code> nested element that
 allows a property to be set to the current date and time in a given format.
 The date/time patterns are as defined in the Java
-<a href="http://java.sun.com/products/jdk/1.2/docs/api/java/text/SimpleDateFormat.html">SimpleDateFormat</a> class.
+<a href="http://java.sun.com/j2se/1.4.2/docs/api/java/text/SimpleDateFormat.html">SimpleDateFormat</a> class.
 The format element also allows offsets to be applied to the time to generate different time values.
 <br><br>
 <table width="60%" border="1" cellpadding="2" cellspacing="0">
@@ -143,4 +143,3 @@ Sets three properties with the standard formats, prefixed with "start.":
 
 </body>
 </html>
-