Merge pull request #3587 from JakeWharton/jw/remove-synthetic-methods

Remove the need for javac to generate synthetic methods.

Author: akarnokd

src/main/java/rx/Observable.java

@@ -60,7 +60,7 @@ protected Observable(OnSubscribe<T> f) {
         this.onSubscribe = f;
     }
 
-    private static final RxJavaObservableExecutionHook hook = RxJavaPlugins.getInstance().getObservableExecutionHook();
+    static final RxJavaObservableExecutionHook hook = RxJavaPlugins.getInstance().getObservableExecutionHook();
 
     /**
      * Returns an Observable that will execute the specified function when a {@link Subscriber} subscribes to

src/main/java/rx/Single.java

@@ -111,7 +111,7 @@ private Single(final Observable.OnSubscribe<T> f) {
         this.onSubscribe = f;
     }
 
-    private static final RxJavaObservableExecutionHook hook = RxJavaPlugins.getInstance().getObservableExecutionHook();
+    static final RxJavaObservableExecutionHook hook = RxJavaPlugins.getInstance().getObservableExecutionHook();
 
     /**
      * Returns a Single that will execute the specified function when a {@link SingleSubscriber} executes it or