private void testArrayCastToListError() {
  String[] strArray = new String[3];
  List list = Arrays.asList(strArray);
  //对转换后的list插入一条数据
  list.add("a");
  System.out.println(list);
  }

Exception in thread "main" java.lang.UnsupportedOperationException
  at java.util.AbstractList.add(AbstractList.java:148)
  at java.util.AbstractList.add(AbstractList.java:108)
  at com.darwin.junit.Calculator.testArrayCastToList(Calculator.java:19)
  at com.darwin.junit.Calculator.main(Calculator.java:44)