inexplicable Netbeans serializable warning for nested base class

问题

When I define the following class

public class Outer extends Outer.Inner {
    public static class Inner { }
}

Netbeans 6.9.1 gives me the "has no definition of serialVersionUID" warning for both Outer and Inner. I'm wondering if there is a legit reason for this warning, or if it's a bug. What about extending an inner class makes the compiler think they are implementing Serializable?

Note: This is more out of curiosity than wanting this unnecessary design pattern.

回答1:

I've wondered the same thing myself. In lieu of an answer, I turned off the warning.

Tools -> Options Menu Hints Tab -> Standard Javac warnings Uncheck the serialization checkbox.

Now you'll have to be careful when extending Serialized Objects, but it stops annoying you about things that aren't serialized.

来源：https://stackoverflow.com/questions/6078806/inexplicable-netbeans-serializable-warning-for-nested-base-class