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Posted to dev@daffodil.apache.org by "Michael Beckerle (JIRA)" <ji...@apache.org> on 2019/03/15 14:17:00 UTC

[jira] [Commented] (DAFFODIL-2097) Non-thread safe code related to EvCalendar

    [ https://issues.apache.org/jira/browse/DAFFODIL-2097?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16793657#comment-16793657 ] 

Michael Beckerle commented on DAFFODIL-2097:
--------------------------------------------

So this happens because the CalendarEv gets evaluated once only, i.e., it is assumed to be a constant, so the same value for the calendar is returned.

Seems like we need to use a calendar stored in the PState/UState.

 

> Non-thread safe code related to EvCalendar
> ------------------------------------------
>
>                 Key: DAFFODIL-2097
>                 URL: https://issues.apache.org/jira/browse/DAFFODIL-2097
>             Project: Daffodil
>          Issue Type: Task
>          Components: Back End
>            Reporter: Steve Lawrence
>            Assignee: Steve Lawrence
>            Priority: Major
>             Fix For: 2.4.0
>
>
> When we use the EvCalendar, this results in a calendar that is often shared among threads. Since this calendar is modify by the SimpleDateTime parse and format functins, different threads using the same calendar could interact and cause spurious failures.



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