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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-3635) Potential null deference in TwitterExample#SelectEnglishAndTokenizeFlatMap#flatMap
Date Fri, 01 Apr 2016 08:44:25 GMT

    [ https://issues.apache.org/jira/browse/FLINK-3635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15221385#comment-15221385
] 

ASF GitHub Bot commented on FLINK-3635:
---------------------------------------

Github user StephanEwen commented on the pull request:

    https://github.com/apache/flink/pull/1845#issuecomment-204310736
  
    Looks good, +1 to merge


> Potential null deference in TwitterExample#SelectEnglishAndTokenizeFlatMap#flatMap
> ----------------------------------------------------------------------------------
>
>                 Key: FLINK-3635
>                 URL: https://issues.apache.org/jira/browse/FLINK-3635
>             Project: Flink
>          Issue Type: Bug
>            Reporter: Ted Yu
>            Priority: Minor
>
> {code}
>       JsonNode jsonNode = jsonParser.readValue(value, JsonNode.class);
>       if (jsonNode.has("user") && jsonNode.get("user").get("lang").asText().equals("en"))
{
> {code}
> jsonNode.get("user").get("lang") may return null, leading to NullPointerException.



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