HADOOP-12100. ImmutableFsPermission should not override applyUmask since that method doesn't modify the FsPermission (Bibin A. Chundatt via Colin P. McCabe)

(cherry picked from commit 6e0a9f92fe0052d39b95a605174b3f6423c6aae7)
(cherry picked from commit 2946e92f79a73cccf9533f31ad40471046496cb2)

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -47,6 +47,10 @@ Release 2.7.1 - UNRELEASED
     HADOOP-12078. The default retry policy does not handle RetriableException
     correctly. (Arpit Agarwal)
 
+    HADOOP-12100. ImmutableFsPermission should not override applyUmask since
+    that method doesn't modify the FsPermission (Bibin A Chundatt via Colin P.
+    McCabe)
+
 Release 2.7.0 - 2015-04-20
 
   INCOMPATIBLE CHANGES

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/permission/FsPermission.java

@@ -375,13 +375,10 @@ public class FsPermission implements Writable {
     public ImmutableFsPermission(short permission) {
       super(permission);
     }
-    @Override
-    public FsPermission applyUMask(FsPermission umask) {
-      throw new UnsupportedOperationException();
-    }
+
     @Override
     public void readFields(DataInput in) throws IOException {
       throw new UnsupportedOperationException();
-    }    
+    }
   }
 }