make fields final

Author: davidmoten

src/main/java/rx/internal/operators/OnSubscribeRedo.java

@@ -171,10 +171,10 @@ public static <T> Observable<T> redo(Observable<T> source, Func1<? super Observa
         return create(new OnSubscribeRedo<T>(source, notificationHandler, false, false, scheduler));
     }
 
-    private Observable<T> source;
+    private final Observable<T> source;
     private final Func1<? super Observable<? extends Notification<?>>, ? extends Observable<?>> controlHandlerFunction;
-    private boolean stopOnComplete;
-    private boolean stopOnError;
+    private final boolean stopOnComplete;
+    private final boolean stopOnError;
     private final Scheduler scheduler;
 
     private OnSubscribeRedo(Observable<T> source, Func1<? super Observable<? extends Notification<?>>, ? extends Observable<?>> f, boolean stopOnComplete, boolean stopOnError,