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BlackBerry Push Development

Posts: 467
Registered: ‎07-16-2009
My Device: Z10 LE
My Carrier: Vodafone NL
Accepted Solution

PushApplication onMessage is called several times

Hi guys,


I contacted my BE team but during I'm waiting reply I want to ask the community:


Is your onMessage called several times with the same message?


I see in RIM examples code they check that this message is new (not proccesed yet):

    public static void process( PushInputStream pis, Connection conn ) {
        Logger.log( "Reading incoming push message ..." );

        try {

            HttpServerConnection httpConn;
            if( conn instanceof HttpServerConnection ) {
                httpConn = (HttpServerConnection) conn;
            } else {
                throw new IllegalArgumentException( "Can not process non-http pushes, expected HttpServerConnection but have "
                        + conn.getClass().getName() );

            String msgId = httpConn.getHeaderField( MESSAGE_ID_HEADER );
            String msgType = httpConn.getType();
            String encoding = httpConn.getEncoding();

            Logger.log( "Message props: ID=" + msgId + ", Type=" + msgType + ", Encoding=" + encoding );
            if( !alreadyReceived( msgId ) ) {



Do you have the same check in your app?




Posts: 235
Registered: ‎11-08-2010
My Device: Not Specified

Re: PushApplication onMessage is called several times

There is no guarantee that dups can be sent to the device but from my experience its quite rare. You'd have to add a message id to the http header when you push the message for it to work.