java 的exception throw try catch

import java.util.*;

public class MyException extends Exception {

    private static final Exception Exception = null;
    private static final Exception NullPointerException = null;

    public static void main(String[] args) {
        try {
            throw (NullPointerException);
        } catch (NullPointerException e) {
            System.out.println("@@@@@");
        } catch (Exception e) {
            System.out.println("$$$$");
        } finally{
            System.out.println("#####");
        }
    }

}

结果：

@@@@@
#####