Index: lucene/common-build.xml
===================================================================
--- lucene/common-build.xml	(revision 1205239)
+++ lucene/common-build.xml	(working copy)
@@ -109,7 +109,15 @@
        classpath -->
   <property name="javac.includeAntRuntime" value="${run.clover}"/>
 
-  <property name="javadoc.link" value="http://download.oracle.com/javase/6/docs/api/"/>
+  <!-- by default, we do not attempt to hyperlink with the canonical
+       copy of the Java SE JavaDocs because the URL has proven to be 
+       unreliable and frequently changes; and there is also no garuntee 
+       that users will have access to the internet when running ant.  
+
+       If you'd like nice hyperlinks to a copy of the Java SE JavaDocs, 
+       override this property with the URL of your choice.
+    -->
+  <property name="javadoc.link" value=""/>
   <property name="javadoc.access" value="protected"/>
   <property name="javadoc.charset" value="utf-8"/>
   <property name="javadoc.dir" value="${common.dir}/build/docs/api"/>