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https://issues.apache.org/jira/browse/PHOENIX-3581?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Maryann Xue resolved PHOENIX-3581.
----------------------------------
    Resolution: Fixed

> Class-cast exceptions caused by TestUtil.getSplits() and 
> TestUtil.getGuidePostsList()
> -------------------------------------------------------------------------------------
>
>                 Key: PHOENIX-3581
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3581
>             Project: Phoenix
>          Issue Type: Sub-task
>            Reporter: Maryann Xue
>            Assignee: Maryann Xue
>            Priority: Minor
>              Labels: calcite
>
> These test utility methods are trying to convert a PrepareStatement object 
> initiated by the current JDBC Connection into a PhoenixPreparedStatement. 
> While we have switched to Calcite-Phoenix connections for tests, the 
> PreparedStatement created by the connection will no longer be a 
> PhoenixPreparedStatement object, so we need to get the original 
> PhoenixConnection object for such util methods.
> {code}
>         String query = "SELECT /*+ NO_INDEX */ COUNT(*) FROM " + tableName + 
> whereClause;
>         PhoenixPreparedStatement pstmt = 
> conn.prepareStatement(query).unwrap(PhoenixPreparedStatement.class);
> {code}



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