[Java] 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();
}