gistfile1.java

private abstract class CallbackListener implements INetworkTasksListener{
		private CountDownLatch signal;

		CallbackListener(CountDownLatch signal){
			this.signal = signal;
		}

		public void onSuccess(Media... medias) {
			signal.countDown();
		}

		public void onFail(Throwable t) {
			signal.countDown();
		}
}

private class GetMediaListener extends CallbackListener{

		GetMediaListener(CountDownLatch signal){
			super(signal);
		}


		public void onSuccess(Media... medias) {
			Media m = medias[0];
			Log.d(TAG, "media uri path is "+m.getMediaUrl());
			Assert.assertTrue(true);
			super.onSuccess(medias);

		}

		public void onFail(Throwable t) {
			Assert.assertTrue(false);
			super.onFail(t);

		}

}