tuxmonteiro

/*
 * Copyright (c) 2015 - Marcelo Teixeira Monteiro (tuxmonteiro)
 * All rights reserved.
 *
 * This source is subject to the Apache License, Version 2.0.
 *
 * Please see the http://www.apache.org/licenses/LICENSE-2.0 for more
 * information.
 *
 * Unless required by applicable law or agreed to in writing, software

tuxmonteiro

package com.example;

import static java.util.Collections.*;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;