Suppress generic warning

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@1199718 13f79535-47bb-0310-9956-ffa450edef68

src/main/java/org/apache/commons/lang3/SerializationUtils.java

@@ -89,7 +89,9 @@ public class SerializationUtils {
              * it is reasonable to assume the deserialized object
              * is of the same type as the original serialized object
              */
-            return (T) in.readObject();
+            @SuppressWarnings("unchecked") // see above
+            T readObject = (T) in.readObject();
+            return readObject;
 
         } catch (ClassNotFoundException ex) {
             throw new SerializationException("ClassNotFoundException while reading cloned object data", ex);