Variables that update inside a runnable?

In a class I have has a runnable that has to access some variables but they aren't changing when other methods in the class change them, how do I make them update?

 

Code pls?

 

Code:

@Override
    public void run() {
        if(!playerQueue.isEmpty()){ //only check stuff if someone has an active barrier
            long t = timeQueue.element(); // grab the time we're waiting for
           
            if (t == playerQueue.element().getWorld().getTime()){
                for(int i = 0; i < blockCountQueue.element(); i++){
                    locationOfBlocks.remove().getBlock().setType(Material.AIR);
                }
                blockCountQueue.remove(); //remove the fronts of all queues
                playerQueue.remove();
                timeQueue.remove();
            }
        }
    }

 

Nothing there that would suggest something wrong, post more code, like the entire task.

You should also debug values at certain points to be sure you're parsing them correctly.