Adsense Android 4.0.3+ devicemotion crash workaround

gistfile1.java

class WebViewClientEx extends WebViewClient {
  private static final String URL_ADSENSE_SHOW_ADS_JS
          = "pagead2.googlesyndication.com/pagead/show_ads.js";

  public android.webkit.WebResourceResponse shouldInterceptRequest(WebView view, String url) {
    if (Build.VERSION.SDK_INT >= 15
            && url.endsWith(URL_ADSENSE_SHOW_ADS_JS)) {

        HttpURLConnection conn = null;
        try {
            conn = (HttpURLConnection) new URL(url).openConnection();
            conn.setRequestMethod("GET");

            InputStream in = new BufferedInputStream(conn.getInputStream());
            String devicemotionWorkaround
                    = "window.DeviceMotionEvent = undefined;\nconsole.log('Adsense Android 4.0.3+ devicemotion crash workaround activated');\n";

            final ByteArrayOutputStream output = new ByteArrayOutputStream();
            output.write(devicemotionWorkaround.getBytes());

            final byte[] buffer = new byte[8192];
            int read;
            while ((read = in.read(buffer)) != -1) {
                output.write(buffer, 0, read);
            }

            return new android.webkit.WebResourceResponse("text/javascript", "UTF-8",
                    new ByteArrayInputStream(output.toByteArray()));
        } catch (MalformedURLException e) {
            log.error("shouldInterceptRequest error", e);
        } catch (IOException e) {
            log.error("shouldInterceptRequest error", e);
        } finally {
            if (conn != null) {
                conn.disconnect();
            }
        }
    }
    return null;
  }
}