docs: private void clearInputStream(HttpURLConnection conn) {
          InputStream is = null;
          byte[] buffer = new byte[1024];
          try {
              is = conn.getInputStream();
              while (is.read(buffer) != -1) {
                  continue;
              }
          } catch (IOException e) {
              // Don't care.
          } finally {
              if (is != null) {
                  try {
                      is.close();
                  } catch (IOException e) {
                      // Don't care.
                  }
              }
          }
      }