diff -r 9f473a0b9e86 -r 625addfb4d4c jdk/src/share/classes/sun/misc/URLClassPath.java
--- a/jdk/src/share/classes/sun/misc/URLClassPath.java	Tue Jan 22 20:04:15 2013 -0500
+++ b/jdk/src/share/classes/sun/misc/URLClassPath.java	Mon Feb 04 18:08:50 2013 -0500
@@ -515,7 +515,8 @@
                     }
                 } else {
                     // our best guess for the other cases
-                    InputStream is = url.openStream();
+                    uc.setUseCaches(false);
+                    InputStream is = uc.getInputStream();
                     is.close();
                 }
                 return url;