HADOOP-8329. Build fails with Java 7. Contributed by Eli Collins

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1@1340270 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -237,6 +237,8 @@ Release 1.1.0 - unreleased
     HDFS-3330. If GetImageServlet throws an Error or RTE, response should not
     have HTTP "OK" status. (todd via eli)
 
+    HADOOP-8329. Build fails with Java 7. (eli)
+
 Release 1.0.3 - 2012.05.07
 
   NEW FEATURES

src/contrib/gridmix/src/java/org/apache/hadoop/mapred/gridmix/Gridmix.java

@@ -613,10 +613,10 @@ public class Gridmix extends Configured implements Tool {
     }
   }
 
-  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 = "|";