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