Can be replaced with method reference less 可以用代码更少的方法引用代替

// 该写法会提示该警告
list.forEach(s -> System.out.println(s));
        
// 使用方法引用消除警告，一般 alt+enter 可以自动转换
list.forEach(System.out::println);

Warning: Static member accessed via instance reference

Warning:Static member accessed via instance reference 
Shows references to static methods and fields via class instance rather than a class itself.

通过引用实例来访问静态成员
通过类的实例来显示静态方法和变量的引用，而不是通过类本身

分析：
可能是考虑到实例会被回收

解决方案：
直接通过类本身来访问静态成员

public class Book() {
    public static final int PAGES = 100;
}

//不推荐
Book book = new Book();
int pages = book.PAGES;
//推荐
int pages = Book.PAGES;