[jira] [Assigned] (PIG-3779) Assert constructs ConstantExpression with null when no comment is given

["Jacob Perkins (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PIG-3779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jacob Perkins reassigned PIG-3779:
----------------------------------

    Assignee: Jacob Perkins  (was: Cheolsoo Park)

> Assert constructs ConstantExpression with null when no comment is given
> -----------------------------------------------------------------------
>
>                 Key: PIG-3779
>                 URL: https://issues.apache.org/jira/browse/PIG-3779
>             Project: Pig
>          Issue Type: Bug
>            Reporter: Cheolsoo Park
>            Assignee: Jacob Perkins
>             Fix For: 0.13.0
>
>         Attachments: assert.diff
>
>
> I ran into this problem with Lipstick after deploying ASSERT. When ASSERT is not given any comment, LogicalPlanBuilder constructs ConstantExpression with null. Later tools like Lipstick try to convert it to a String resulting in NPE.
> Although it's possible to handle this case in Lipstick, I feel ConstantExpression shouldn't be constructed with null in the first place.
> Here is the code in LogicalPlanBuilder-
> {code}
> ConstantExpression constExpr = new ConstantExpression(exprPlan, comment);
> {code}



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