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
--- /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;
+ }
+}