65 lines
2.4 KiB
Java
65 lines
2.4 KiB
Java
/*
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* Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.util.*;
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import java.text.*;
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/**
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* Test GregorianCalendar limits, which should not exist.
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* @test
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* @bug 4056585
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* @summary Make sure that GregorianCalendar works far in the past and future.
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* @author Alan Liu
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*/
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public class Limit {
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static final long ONE_DAY = 24*60*60*1000L;
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public static void main(String args[]) throws Exception {
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GregorianCalendar c = new GregorianCalendar();
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DateFormat fmt = new SimpleDateFormat("EEEE, MMMM dd, yyyy G", Locale.US);
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long bigMillis = 300000000000000L;
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try {
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// We check two things:
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// 1. That handling millis in the range of +/- bigMillis works.
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// bigMillis is a value that used to blow up.
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// 2. The round-trip format/parse works in these extreme areas.
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c.setTime(new Date(-bigMillis));
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String s = fmt.format(c.getTime());
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Date d = fmt.parse(s);
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if (Math.abs(d.getTime() + bigMillis) >= ONE_DAY) {
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throw new Exception(s + " != " + fmt.format(d));
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}
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c.setTime(new Date(+bigMillis));
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s = fmt.format(c.getTime());
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d = fmt.parse(s);
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if (Math.abs(d.getTime() - bigMillis) >= ONE_DAY) {
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throw new Exception(s + " != " + fmt.format(d));
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}
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} catch (IllegalArgumentException | ParseException e) {
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throw e;
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}
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}
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}
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