24.9. Handling Exceptions

var callback = function(result) { 
    alert(result); 
}; 
var exceptionHandler = function(ex) { 
    alert("An exception occurred: " + ex.getMessage()); 
}; 
Seam.Component.getInstance("helloAction")
    .sayHello(name, callback, exceptionHandler);

var exceptionHandler = function(ex) { 
    alert("An exception occurred: " + ex.getMessage()); 
}; 
Seam.Component.getInstance("helloAction")
    .sayHello(name, null, exceptionHandler);