Java Programming

I encounter this error whilst compiling the source. The code is as below:

public final class A{
    private final MulticastSocket socket;
    public A(int port){
        try{
            this.socket = new MulticastSocket(port);
        }catch(Exception e){}        

    }
}

The error says `Variable socket might not have been initialized.'

After reading http://java.sun.com/docs/books/jls/second_edition/html/defAssign.doc.html, I think this might be from the construction with try ... catch statement because it is not guaranteed to be executed `as the rules of definite assignment are concerned'.

How can I avoid this error? (I notice I can replace try catch block with `public A (int port) throws Exception' to avoid this compilation error, but this is not what I want.)

I appreciate any suggestion.