if (meetsPinga= true){
getWorld().setBackground(goals);
getWorld().removeObject(this);
getWorld().removeObjects(getWorld().getObjects(pinga.class));
getWorld().removeObjects(getWorld().getObjects(Ground.class));
getWorld().removeObjects(getWorld().getObjects(goal.class));
getWorld().removeObjects(getWorld().getObjects(Cloud.class));
}
private boolean meetsPinga(){
return (getX()>710);
}
When the object (Penguin) does 'meetsPinga', only Penguin ('this') is removed and I get an error saying java.lang.NullPointerException.

