gistfile1.java

ApnsService service =
    APNS.newService()
        .withCert("/path/to/production_certificate.p12", "MyProdCertPassword")
        .withProductionDestination()
        .withDelegate(new ApnsDelegate() {
            @Override
            public void messageSent(ApnsNotification message, boolean resent) {

            }

            @Override
            public void messageSendFailed(ApnsNotification message, Throwable e) {
                logger.severe(message.getDeviceToken().toString(), e);
            }

            @Override
            public void connectionClosed(DeliveryError e, int messageIdentifier) {
                 logger.severe("Closed: " + e);
            }

            @Override
            public void cacheLengthExceeded(int newCacheLength) {

            }

            @Override
            public void notificationsResent(int resendCount) {
                 logger.severe("Retry: " + resendCount);
            }
        })
        .build();


String payload = APNS.newPayload().alertBody("YU NO MESSAGE???").build();
List<String> mixedTokens = ....
service.push(mixedTokens, payload);