Getting a signs text?

I have tried to get a the text on a sign for a hub that I am working on however cannot managed to do it!

I first tried to use the event: PlayerInteractEntityEvent however that turned out not to work and after some googling, I found to use PlayerInteractEvent. I then tried it and it didn't work. However I wasn't getting an internal error as of before, now nothing is happening! I then added some 'else' statements to see what the problem was and it turns out that it is not recognising the block type of a wall sign!

Code:

@EventHandler(priority = EventPriority.HIGHEST)
    public void onPlayerInteract(PlayerInteractEvent p){
        Player player = p.getPlayer();
        if(p.getAction().equals(Action.RIGHT_CLICK_BLOCK)){
            if(p.getClickedBlock().equals(Material.WALL_SIGN)){
                Sign sign = (Sign) p.getClickedBlock().getState();
                if(sign.getLine(1).equalsIgnoreCase("Skyblock Hub")){
                    player.performCommand("mw goto SkyblockHub");
                }
                }
            }
            }

Note: If you are new to this thread, don't copy the code from above as it does not work! (For me anyway...)

 

RandomGuyDom Check if the block is an instance of a sign.

 

RandomGuyDom
I was actually just watching this video. Timing eh?