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https://issues.apache.org/jira/browse/CALCITE-699?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Josh Elser reopened CALCITE-699:
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> In Avatica, synchronize access to Calendar
> ------------------------------------------
>
> Key: CALCITE-699
> URL: https://issues.apache.org/jira/browse/CALCITE-699
> Project: Calcite
> Issue Type: Bug
> Components: avatica
> Reporter: Julian Hyde
> Assignee: Julian Hyde
> Fix For: 1.3.0-incubating
>
>
> The Calendar class is not thread-safe. Some JDBC methods accept Calendar
> objects from the client. We must synchronize on this Calendar in case the
> client is using the Calendar elsewhere.
> Avatica also creates Calendar objects internally. Access to those calendars
> does not need to be synchronized, but they are often passed into methods that
> accept client Calendars, and will get synchronized anyway.
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