Error while retriving the values from a vector in jsp

Question

Vector AppDetails is set in a Attribute of request scope as.
Vector[] AppDetails = (Vector[])port.retrieveAppDetails(appID);
request.setAttribute("AppDetails",AppDetails);
But while retriving the same in the jsp by
Vector AppDetails =(Vector)request.getAttribute("AppDetails");
its giving an error as
java.lang.ClassCastException: [Ljava.util.Vector;
so i am trying with this code now
Object attr = request.getAttribute("AppDetails");
if(attr instanceof Vector)
     System.out.println("is instance of vector");
}     else
System.out.println("is not a instance");
System.out.println("I'm seeing a " + attr.getClass().getName());
here the output is 'is not a instance'. Suggest me on the same.

Answer 1

You are setting the array of vector in request object, but you are trying get the object as normal vector object. that's why are you getting error. try to get the vector object as array of vector.