EasyExcel java.lang.UnsupportedOperationException

导出excel的时候，拼接head和data通常使用Arrays.asList方法，通过观察源码发现

asList是重新创建一个ArrayList
public static  List asList(T... a) {
        return new ArrayList<>(a);
    }

但是这个ArrayList 是内部自定义的List 而非util包下的ArrayList
private static class ArrayList extends AbstractList
        implements RandomAccess, java.io.Serializable
    {
        private static final long serialVersionUID = -2764017481108945198L;
        private final E[] a;

        ArrayList(E[] array) {
            a = Objects.requireNonNull(array);
        }

}


继承自AbstractList
public void add(int index, E element) {
        throw new UnsupportedOperationException();
}
public E remove(int index) {
        throw new UnsupportedOperationException();
}
add和remove方法都会默认抛出异常UnsupportedOperationException

正确使用方法：

list.add(Lists.newArrayList("行政单位"));