1 /*
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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
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17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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23 
24 /*
25  * @test
26  * @bug 6282072
27  * @summary Make sure that "UTC" is an alias of "Etc/UTC" as defined in the tzdata backward.
28  * @modules java.base/sun.util.calendar
29  * @compile -XDignore.symbol.file UTCAliasTest.java
30  * @run main UTCAliasTest
31  */
32 
33 import java.util.*;
34 import sun.util.calendar.ZoneInfo;
35 
36 public class UTCAliasTest {
main(String[] args)37     public static void main(String[] args) {
38         Map<String,String> map = ZoneInfo.getAliasTable();
39         String alias = map.get("UTC");
40         if (!alias.equals("Etc/UTC")) {
41             throw new RuntimeException("got " + alias + ", expected Etc/UTC");
42         }
43         TimeZone GMT = TimeZone.getTimeZone("GMT");
44         TimeZone UTC = TimeZone.getTimeZone("UTC");
45         if (!GMT.hasSameRules(UTC)) {
46             throw new RuntimeException("GMT and UTC have different rules");
47         }
48         TimeZone EtcUTC = TimeZone.getTimeZone("Etc/UTC");
49         if (!UTC.hasSameRules(EtcUTC)) {
50             throw new RuntimeException("UTC and Etc/UTC have different rules");
51         }
52     }
53 }
54