Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package com.gs.config; import java.util.ArrayList; import org.springframework.stereotype.Component; /** * * @author SIGSA */ @Component public class ListUsersBlocked extends ArrayList { private static ListUsersBlocked instance = new ListUsersBlocked(); public ListUsersBlocked() { super(); } public static ListUsersBlocked getListUsersBlocked() { return instance; } }