JAVA nontoop/apns certificate

I have java application and I want to send push notification. I use nontoop/apns library. In this line of code which certificate should I use instead cert variable?

ApnsService service = APNS.newService().withCert(cert, "atajerBritecs")
                .withSa开发者_运维知识库ndboxDestination().build();

Thnaks in advance

---

It looks like you are calling the ".withSandboxDestination()" so you will want to use the Development Push SSL Certificate. This can be configured in the "App Ids" section.

Note to configure your App in the "App Ids" section you need to be Team Agent