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    How To Redirect to jsp from java class in gwt

    I am new to gwt.I want to send some information to jsp where it is processed in jsp tags.
    I saw below code.Call goes to jsp but RPCManager is not resolved at server site.What jars I need to import.And do those jar files need paid license.Please help


    Simple arbitrary Remote Procedure Call example (client code):


    RPCRequest request = new RPCRequest();
    // Note data could be a String, Map or Record
    request.setData("Some data to send to the client");
    request.setActionURL("/rpcHandler.jsp");

    RPCManager.sendRequest(request,
    new RPCCallback () {
    public void execute(RPCResponse response, Object rawData, RPCRequest request) {
    SC.say("Response from the server:" + rawData);
    }
    }
    );

    Simple arbitrary Remote Procedure Call example (server code: /rpcHandler.jsp):

    RPCManager rpc = new RPCManager(request, response, out);
    Object data = rpc.getData();
    System.out.println("client sent: " + data.toString());
    rpc.send("here's a response");
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