# HG changeset patch # User bpb # Date 1495648344 25200 # Node ID da85c75f472e83780ece06626d383c27bb538c42 # Parent fd3fdfe96bb494608201a35496b598a725076de0 8180885: Create test to detect if TimeZone.setDefault affects File.setLastModifiedTime Summary: Check whether File.lastModified is affected by not setting the default time zone or by setting to any of the available time zones. Reviewed-by: dfuchs, rriggs diff -r fd3fdfe96bb4 -r da85c75f472e jdk/test/java/io/File/TimeZoneLastModified.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/test/java/io/File/TimeZoneLastModified.java Wed May 24 10:52:24 2017 -0700 @@ -0,0 +1,82 @@ +/* + * Copyright (c) 2017, 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. + */ + +/* + * @test + * @bug 6212869 + * @summary Determine if lastModified() works after TimeZone.setDefault() + * @run main/othervm TimeZoneLastModified + */ + +import java.io.File; +import java.util.Date; +import java.util.TimeZone; +import java.text.SimpleDateFormat; + +public class TimeZoneLastModified { + // Tue, 04 Jun 2002 13:56:50.002 GMT + private static final long TIME = 1023199010002L; + + public static void main(String[] args) throws Throwable { + int failures = test(null); + for (String timeZoneID : TimeZone.getAvailableIDs()) { + failures += test(timeZoneID); + } + if (failures != 0) { + throw new RuntimeException("TimeZoneLastModified failed"); + } + System.out.println("TimeZoneLastModified passed"); + } + + private static int test(String timeZoneID) throws Throwable { + File f = new File("test-timezone.txt"); + int failures = 0; + try { + f.createNewFile(); + + if (timeZoneID != null) { + TimeZone.setDefault(TimeZone.getTimeZone(timeZoneID)); + } + + boolean succeeded = f.setLastModified(TIME); + if (!succeeded) { + System.err.format + ("Setting time to %d failed for time zone %s%n", + TIME, timeZoneID); + failures++; + } + + long time = f.lastModified(); + if (Math.abs(time - TIME) > 999) { // account for second precision + System.err.format + ("Wrong modification time (ms): expected %d, obtained %d%n", + TIME, time); + failures++; + } + } finally { + f.delete(); + } + + return failures; + } +}