Remove the Action0 overloads

rxjava-core/src/main/java/rx/Observable.java

@@ -6271,43 +6271,6 @@ public <TKey, TValue, TDuration> Observable<GroupedObservable<TKey, TValue>> gro
         return create(new OperationGroupByUntil<T, TKey, TValue, TDuration>(this, keySelector, valueSelector, durationSelector));
     }
 
-    /**
-     * Invokes the action asynchronously, surfacing the result through an observable sequence.
-     * <p>
-     * Note: The action is called immediately, not during the subscription of the resulting
-     * sequence. Multiple subscriptions to the resulting sequence can observe the
-     * action's outcome.
-     * 
-     * @param action
-     *            Action to run asynchronously.
-     * @return An observable sequence exposing a null value upon completion of the action,
-     *            or an exception.
-     * @see <a href="http://msdn.microsoft.com/en-us/library/hh229265(v=vs.103).aspx">MSDN: Observable.Start</a>
-     */
-    public static Observable<Void> start(Action0 action) {
-        return Async.toAsync(action).call();
-    }
-
-    /**
-     * Invokes the action asynchronously on the specified scheduler, surfacing the
-     * result through an observable sequence.
-     * <p>
-     * Note: The action is called immediately, not during the subscription of the resulting
-     * sequence. Multiple subscriptions to the resulting sequence can observe the
-     * action's outcome.
-     * 
-     * @param action
-     *            Action to run asynchronously.
-     * @param scheduler
-     *            Scheduler to run the function on.
-     * @return An observable sequence exposing a null value upon completion of the action,
-     *            or an exception.
-     * @see <a href="http://msdn.microsoft.com/en-us/library/hh211971(v=vs.103).aspx">MSDN: Observable.Start</a>
-     */
-    public static Observable<Void> start(Action0 action, Scheduler scheduler) {
-        return Async.toAsync(action, scheduler).call();
-    }
-
     /**
      * Invokes the specified function asynchronously, surfacing the result through an observable sequence.
      * <p>

rxjava-core/src/test/java/rx/ObservableTests.java

@@ -951,107 +951,6 @@ public void testRangeWithScheduler() {
         inOrder.verifyNoMoreInteractions();
     }
 
-    @Test
-    public void testStartWithAction() {
-        Action0 action = mock(Action0.class);
-        assertEquals(null, Observable.start(action).toBlockingObservable().single());
-    }
-
-    @Test(expected = RuntimeException.class)
-    public void testStartWithActionError() {
-        Action0 action = new Action0() {
-            @Override
-            public void call() {
-                throw new RuntimeException("Some error");
-            }
-        };
-        Observable.start(action).toBlockingObservable().single();
-    }
-
-    @Test
-    public void testStartWhenSubscribeRunBeforeAction() {
-        TestScheduler scheduler = new TestScheduler();
-
-        Action0 action = mock(Action0.class);
-
-        Observable<Void> observable = Observable.start(action, scheduler);
-
-        @SuppressWarnings("unchecked")
-        Observer<Void> observer = mock(Observer.class);
-        observable.subscribe(observer);
-
-        InOrder inOrder = inOrder(observer);
-        inOrder.verifyNoMoreInteractions();
-
-        // Run action
-        scheduler.advanceTimeBy(100, TimeUnit.MILLISECONDS);
-
-        inOrder.verify(observer, times(1)).onNext(null);
-        inOrder.verify(observer, times(1)).onCompleted();
-        inOrder.verifyNoMoreInteractions();
-    }
-
-    @Test
-    public void testStartWhenSubscribeRunAfterAction() {
-        TestScheduler scheduler = new TestScheduler();
-
-        Action0 action = mock(Action0.class);
-
-        Observable<Void> observable = Observable.start(action, scheduler);
-
-        // Run action
-        scheduler.advanceTimeBy(100, TimeUnit.MILLISECONDS);
-
-        @SuppressWarnings("unchecked")
-        Observer<Void> observer = mock(Observer.class);
-        observable.subscribe(observer);
-
-        InOrder inOrder = inOrder(observer);
-        inOrder.verify(observer, times(1)).onNext(null);
-        inOrder.verify(observer, times(1)).onCompleted();
-        inOrder.verifyNoMoreInteractions();
-    }
-
-    @Test
-    public void testStartWithActionAndMultipleObservers() {
-        TestScheduler scheduler = new TestScheduler();
-
-        Action0 action = mock(Action0.class);
-
-        Observable<Void> observable = Observable.start(action, scheduler);
-
-        scheduler.advanceTimeBy(100, TimeUnit.MILLISECONDS);
-
-        @SuppressWarnings("unchecked")
-        Observer<Void> observer1 = mock(Observer.class);
-        @SuppressWarnings("unchecked")
-        Observer<Void> observer2 = mock(Observer.class);
-        @SuppressWarnings("unchecked")
-        Observer<Void> observer3 = mock(Observer.class);
-
-        observable.subscribe(observer1);
-        observable.subscribe(observer2);
-        observable.subscribe(observer3);
-
-        InOrder inOrder;
-        inOrder = inOrder(observer1);
-        inOrder.verify(observer1, times(1)).onNext(null);
-        inOrder.verify(observer1, times(1)).onCompleted();
-        inOrder.verifyNoMoreInteractions();
-
-        inOrder = inOrder(observer2);
-        inOrder.verify(observer2, times(1)).onNext(null);
-        inOrder.verify(observer2, times(1)).onCompleted();
-        inOrder.verifyNoMoreInteractions();
-
-        inOrder = inOrder(observer3);
-        inOrder.verify(observer3, times(1)).onNext(null);
-        inOrder.verify(observer3, times(1)).onCompleted();
-        inOrder.verifyNoMoreInteractions();
-
-        verify(action, times(1)).call();
-    }
-
     @Test
     public void testStartWithFunc() {
         Func0<String> func = new Func0<String>() {