Java Client:2.1.0
capabilities = new DesiredCapabilities();
//capabilities.setCapability("platformName","Android"));
capabilities.setCapability("deviceName","HTC");
capabilities.setCapability("platformVersion", "4.4");
capabilities.setCapability("app", "C:/");
capabilities.setCapability("newCommandTimeout", "500");
driver=new AndroidDriver(new URL("http://0.0.0.0:4723/wd/hub"), capabilities);
system.out.println(driver.getcontextHandles());
driver.context("WebView");