    @Test
    public void read7_JsonElement_Null_Class() throws Exception {

        final JsonElement jsonElement = null;

        TestSubscriber<Entity> testSubscriber = new TestSubscriber<Entity>();

        Observable<Entity> observable = rGson.read(jsonElement, Entity.class);
        observable.subscribe(testSubscriber);
        testSubscriber.assertNoErrors();

        List<Entity> list = testSubscriber.getOnNextEvents();
        Assert.assertEquals(null, list.get(0));

    }