Here you can find the source of checkTime(long time, TimeUnit timeunit)
static void checkTime(long time, TimeUnit timeunit)
//package com.java2s; /*/*from www.j av a2 s.c o m*/ * Copyright (c) 2008-2013, Hazelcast, Inc. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.util.concurrent.TimeUnit; public class Main { static void checkTime(long time, TimeUnit timeunit) { if (time < 0) { throw new IllegalArgumentException("Time can not be less than 0."); } if (timeunit == null) { throw new NullPointerException("TimeUnit can not be null."); } } }