#fixed code
                                @Benchmark
    public int offerAndPollLoops() {
        final int burstSize = this.burstSize;
        for (int i = 0; i < burstSize; i++) {
            q.offer(DUMMY_MESSAGE);
        }
        Integer result = DUMMY_MESSAGE;
        for (int i = 0; i < burstSize; i++) {
            result = q.poll();
        }
        return result;
    }
#vulnerable code 
                                @Benchmark
    public int offerAndPollLoops() {
        final int burstSize = this.burstSize;
        for (int i = 0; i < burstSize; i++) {
            q.offer(DUMMY_MESSAGE);
        }
        Integer result = null;
        for (int i = 0; i < burstSize; i++) {
            result = q.poll();
        }
        return result;
    } 
                            #location 11 
                            #vulnerability type NULL_DEREFERENCE