Java使用Arrays.asList报UnsupportedOperationException的解决

           // 这里隐藏了查询条件，所以就写死了
        List<String>  performId=new ArrayList<>();
        performId.add("701728881476112384");
        performId.add("701728881497083904");
        String[] agentIds = StringUtils.split(agentId, ",");
        List<String> agentIdList = Arrays.asList(agentIds);
        // 后面同事没有注意，就直接展示查询出来就加入
        agentIdList.addAll(performId);

 private static class ArrayList<E> extends AbstractList<E> implements RandomAccess, java.io.Serializable{
        private static final long serialVersionUID = -2764017481108945198L;
        private final E[] a;
        ArrayList(E[] array) {
            a = Objects.requireNonNull(array);
        }
        @Override
        public int size() {
            return a.length;
        }
        @Override
        public Object[] toArray() {
            return a.clone();
        }
        @Override
        @SuppressWarnings("unchecked")
        public <T> T[] toArray(T[] a) {
            int size = size();
            if (a.length < size)return Arrays.copyOf(this.a, size,(Class<? extends T[]>) a.getClass());
            System.arraycopy(this.a, 0, a, 0, size);
            if (a.length > size) a[size] = null;
            return a;
        }
        @Override
        public E get(int index) {
            return a[index];
        }
        @Override
        public E set(int index, E element) {
            E oldValue = a[index];
            a[index] = element;
            return oldValue;
        }

        @Override
        public int indexOf(Object o) {
            E[] a = this.a;
            if (o == null) {
                for (int i = 0; i < a.length; i++)
                    if (a[i] == null) return i;
            } else {
              for (int i = 0; i < a.length; i++)
                   if (o.equals(a[i])) return i;
            }
            return -1;
        
        @Override
        public boolean contains(Object o) {
            return indexOf(o) != -1;
        }
        @Override
        public Spliterator<E> spliterator() {
            return Spliterators.spliterator(a, Spliterator.ORDERED);
        }
        @Override
        public void forEach(Consumer<? super E> action) {
            Objects.requireNonNull(action);
            for (E e : a) {
                action.accept(e);
            }
        }
        @Override
        public void replaceAll(UnaryOperator<E> operator) {
            Objects.requireNonNull(operator);
            E[] a = this.a;
            for (int i = 0; i < a.length; i++) {
                a[i] = operator.apply(a[i]);
            }
        }

        @Override
        public void sort(Comparator<? super E> c) {
            Arrays.sort(a, c);
        }
    }

    ##只粘贴了部分源码，详情可以去AbstractList.class中查看
    public void add(int index, E element) {
        throw new UnsupportedOperationException();
    }