.java

//store the actual request-function in a variable

  var oldRequestFn = jsf.ajax.request;
  
  var executeOptions;
  
  //override the request function
  
  jsf.ajax.request = function (source, event, options) {
    
  //temporarily store the execute-options to use
  
  //them in the getViewState-function
    
    executeOptions = options.execute;
    
    //call the actual request function. This method will call the 
    
    //getViewState-function internally
    
    oldRequestFn(source, event, options);
    
  };