I cant fint the error in my method

I have an assignment in blueJ. We have this method for findItem:

public Item findItem(String search) {


        for(Item item : items.values()) {

            if(item.getName().equalsIgnoreCase(search)) {

                return item;
            }
        }

        return null;
    }

We are using the if-method to return true and false, but there is something wrong with either the findItem-method or the if-statement. This is the if-statement we have so far:

public void useItem(Item item) {
        if (findItem(items) == true) {
         System.out.println(getName() + " " + item.getAction() + " " + "a" + " " + item.getName()); 
        }
        else {  
         return false;
        }
    }

Does anyone know what is wrong with the code? We are also using HashMap for the first time, if that has anything to do with it.