java 中bug:Return an empty array rather than null. 解决

Posted 2023-02-26 alextongtong

CODE

private static File[] foo() 
    return Collections.emptyList().toArray(new File[0]);

---

private static File[] bar() 
    return new File[0];

想要返回一个empty 的array的方式：

private static final File[] NO_FILES = ;
private static File[] bar()
    return NO_FILES;