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From "Hadrian Zbarcea (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (AMQ-6327) getNextScheduledTime() returns incorrect time when working with day of month
Date Thu, 21 Dec 2017 01:55:00 GMT

     [ https://issues.apache.org/jira/browse/AMQ-6327?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hadrian Zbarcea reassigned AMQ-6327:
------------------------------------

    Assignee: Hadrian Zbarcea

> getNextScheduledTime() returns incorrect time when working with day of month
> ----------------------------------------------------------------------------
>
>                 Key: AMQ-6327
>                 URL: https://issues.apache.org/jira/browse/AMQ-6327
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.12.0, 5.13.3
>            Reporter: Justin Novak
>            Assignee: Hadrian Zbarcea
>            Priority: Minor
>
> Given the following code
> {code:java}
> DateFormat format = new SimpleDateFormat("yyyy/MM/dd");
> try {
>   // cron, currentDate, expectedDate
>   String[][] tests = new String[][]{
>     { "0 0 1 * *", "2016/04/15", "2016/05/01" },
>     { "0 0 1,15 * *", "2016/04/15", "2016/05/01" },
>     { "0 0 1 * *", "2016/05/15", "2016/06/01" },
>     { "0 0 1,15 * *", "2016/05/15", "2016/06/01" },
>     { "0 0 1 * *", "2016/06/15", "2016/07/01" },
>     { "0 0 1,15 * *", "2016/06/15", "2016/07/01" },
>   };
>   String cron;
>   Date currentDate;
>   Date expectedDate;
>   Date nextDate;
>   for (int i = 0; i < tests.length; i++) {
>     cron = tests[i][0];
>     currentDate = format.parse(tests[i][1]);
>     expectedDate = format.parse(tests[i][2]);
>     nextDate = new Date(CronParser.getNextScheduledTime(cron, currentDate.getTime()));
>     System.out.println(String.format("CronParser.getNextScheduledTime('%s', '%s') ==
'%s' // Expected: '%s'", cron, currentDate, nextDate, expectedDate));
>   }
> } catch (Exception e) {
>   e.printStackTrace();
> }
> {code}
> The output is
> {code}
> CronParser.getNextScheduledTime('0 0 1 * *', 'Fri Apr 15 00:00:00 UTC 2016') == 'Wed
Jun 01 00:00:00 UTC 2016' // Expected: 'Sun May 01 00:00:00 UTC 2016'
> CronParser.getNextScheduledTime('0 0 1,15 * *', 'Fri Apr 15 00:00:00 UTC 2016') == 'Sun
May 15 00:00:00 UTC 2016' // Expected: 'Sun May 01 00:00:00 UTC 2016'
> CronParser.getNextScheduledTime('0 0 1 * *', 'Sun May 15 00:00:00 UTC 2016') == 'Wed
Jun 01 00:00:00 UTC 2016' // Expected: 'Wed Jun 01 00:00:00 UTC 2016'
> CronParser.getNextScheduledTime('0 0 1,15 * *', 'Sun May 15 00:00:00 UTC 2016') == 'Wed
Jun 01 00:00:00 UTC 2016' // Expected: 'Wed Jun 01 00:00:00 UTC 2016'
> CronParser.getNextScheduledTime('0 0 1 * *', 'Wed Jun 15 00:00:00 UTC 2016') == 'Mon
Aug 01 00:00:00 UTC 2016' // Expected: 'Fri Jul 01 00:00:00 UTC 2016'
> CronParser.getNextScheduledTime('0 0 1,15 * *', 'Wed Jun 15 00:00:00 UTC 2016') == 'Fri
Jul 15 00:00:00 UTC 2016' // Expected: 'Fri Jul 01 00:00:00 UTC 2016'
> {code}
> When given 1 for the day of month it's returning 1 month to many every other month
> When given 1,15 for the day of month it's returning the correct month but incorrect day
of month every other month
> I've tested this on both v5.12.0 and v5.13.3



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