diff -r 2ee16a0f6df5 -r 83581a2cf49d jdk/src/share/classes/java/net/URI.java
--- a/jdk/src/share/classes/java/net/URI.java	Thu Sep 01 06:45:00 2011 +0100
+++ b/jdk/src/share/classes/java/net/URI.java	Thu Sep 01 13:53:59 2011 +0100
@@ -1711,6 +1711,8 @@
                     i++;
                     continue;
                 }
+                if (d != '%')
+                    return false;
                 i++;
                 if (toLower(s.charAt(i)) != toLower(t.charAt(i)))
                     return false;