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https://issues.apache.org/jira/browse/PIG-2040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13029098#comment-13029098
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Santhosh Srinivasan commented on PIG-2040:
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It did not work back then because javacc was not shipped. Should we consider 
shipping the parser binaries to allow users to take advantage of utility 
methods? This can be tracked as a separate issue.

> Move classloader from QueryParserDriver to PigContext
> -----------------------------------------------------
>
>                 Key: PIG-2040
>                 URL: https://issues.apache.org/jira/browse/PIG-2040
>             Project: Pig
>          Issue Type: Bug
>          Components: impl
>    Affects Versions: 0.9.0
>            Reporter: Daniel Dai
>            Assignee: Daniel Dai
>             Fix For: 0.9.0
>
>         Attachments: PIG-2040-1.patch
>
>
> After PIG-1775, mapreduce mode fail. The reason is we move classloader from 
> LogicalPlanBuilder to QueryParserDriver, which will need antlr.jar, however, 
> we don't ship antlr.jar to backend. It is better to move classloader to 
> PigContext.

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