Failed to send APNS Notification:
javax.net.ssl.SSLHandshakeException: Received fatal alert: unknown_ca
at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
at sun.security.ssl.Alerts.getSSLException(Alerts.java:154)
at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:1959)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1077)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1312)
at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:702)
at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:122)
at java.io.OutputStream.write(OutputStream.java:75)
at com.icesoft.icepush.APNSNotificationProvider.send(APNSNotificationProvider.java:115)
at org.icepush.servlet.MainServlet$DefaultOutOfBandNotifier.broadcast(MainServlet.java:212)
at org.icepush.PushID$ConfirmationTimeout.run(PushID.java:329)
at java.util.TimerThread.mainLoop(Timer.java:555)
at java.util.TimerThread.run(Timer.java:505)