Can't get KeyListener to work

[Humakt]

I've done KeyListener before successfully, but for some reason I can't get it to work in my recent project. Here is the code:

View class (setBattleController is called upon creating new Battle object):

public void setBattleController(Battle b){
        this.addKeyListener(b);
        this.setFocusable(true);
        this.requestFocus();
    }
    public void removeBattleController(Battle b){
        this.removeKeyListener(b);
    }

Battle (there is another controller for view, but it doesn't use keylistener)

public void keyTyped(KeyEvent ke){
               //bunch of code
        System.out.println("Here we are");
}

[Humakt]

Any help? It doesn't just seem to do anything.

[r035198x]

Put the println before the bunch of code to see if listener is called at all.
You might have have to give more information.

[Humakt]

@r035198x
I got it to work after regenerating serialUIDs for both classes, though I'm not yet finished with code. I'm bit confused why my middlemouse-button is not working with my current program in current system as it did with my laptop.

Any ways to get focus on JPanel for getting keyevents? (Without using mouselistener for focusing)