public Polynomial multiply (Polynomial p) {

		Polynomial a = this;
		Polynomial total = new Polynomial();
		Node result = new Node (0,0,null);
		total.poly = result;
		Node curr = a.poly;

		while (true){
			if (curr == null){ //stops while loop
				break;
			}

			Node other = p.poly;
			Polynomial product = new Polynomial();
			Node curr_product = new Node (0,0,null);
			product.poly = curr_product;

			while (other != null){

				int new_degree = curr_product.term.degree;
				float new_coeff = curr_product.term.coeff;

				new_degree = curr.term.degree + other.term.degree;
				new_coeff = curr.term.coeff * other.term.coeff;

				curr_product.next = new Node (new_coeff, new_degree, null);
				curr_product = curr_product.next;

				other = other.next;
			}

			product.poly = product.poly.next;
			curr = curr.next;

			//null pointer exception here vvvv;
			total = total.add(product);

		}
		return total;
	}

It also gives me an error in the add method at line 173:
result.next = new Node (other.term.coeff, other.term.degree,null);

Although it runs and compiles if I do run the add method. It only gives me nullpointerexception error when I run mult. method.