Question

I’m trying to send push notifications to my device using javapns library in liferay. Here’s the code:

private void pushNotification(ActionRequest actionRequest,
            ActionResponse actionResponse) {

        try {
            System.out.println("Push");

            Push.alert("Hello World!", "ck.p12", "PASSPHRASE", false, "TOKEN");

        } catch (CommunicationException e) {
            System.out.println("CommunicationException");
            e.printStackTrace();
        } catch (KeystoreException e) {
            System.out.println("KeystoreException");
            e.printStackTrace();
        }

    }

I’m getting this error when the pushNotification is called:

ERROR [PushNotificationManager:450] Delivery error: javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure

I’ve googled it but couldn’t find any solution.

Does anyone know how to solve this problem?

Answer 1

The javax.net.ssl.SSLHandshakeException exception is usually thrown when the server you’re trying to connect to does not have a valid certificate from an authorized CA.

Put simply, the server you’re attempting to connect to is most likely using a self-signed certificate and you have to accomodate for that in your Java code. This involves creating a custom KeyStore, etc. See this Stack Overflow answer for full implementation details.