--- ./src/contrib/gridmix/src/java/org/apache/hadoop/mapred/gridmix/Gridmix.java        2012-10-03 13:17:16.000000000 +0800
+++ ./src/contrib/gridmix/src/java/org/apache/hadoop/mapred/gridmix/Gridmix1.java       2013-02-04 19:25:13.000000000 +0800
@@ -393,10 +393,10 @@
     }
   }

-  private <T> String getEnumValues(Enum<? extends T>[] e) {
+  private  String getEnumValues(Enum<?>[] e) {
     StringBuilder sb = new StringBuilder();
     String sep = "";
-    for (Enum<? extends T> v : e) {
+    for (Enum<?> v : e) {
       sb.append(sep);
       sb.append(v.name());
       sep = "|";