flink-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-3064) Missing size check in GroupReduceOperatorBase leads to NPE
Date Tue, 24 Nov 2015 13:54:11 GMT

    [ https://issues.apache.org/jira/browse/FLINK-3064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15024549#comment-15024549
] 

ASF GitHub Bot commented on FLINK-3064:
---------------------------------------

Github user tillrohrmann commented on the pull request:

    https://github.com/apache/flink/pull/1396#issuecomment-159274216
  
    Will be merging.


> Missing size check in GroupReduceOperatorBase leads to NPE
> ----------------------------------------------------------
>
>                 Key: FLINK-3064
>                 URL: https://issues.apache.org/jira/browse/FLINK-3064
>             Project: Flink
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.0.0
>            Reporter: Martin Junghanns
>            Assignee: Martin Junghanns
>            Priority: Minor
>
> The following example leads to a NPE:
> {code:java}
> ExecutionEnvironment env = ExecutionEnvironment.createCollectionsEnvironment();
> env.fromCollection(Lists.newArrayList(new Tuple1<>(1L)))
>   .filter(new AlwaysFalseFilter()) // returns false for any element
>   .sum(0)
>   .print();
> {code}
> In {{GroupReduceOperatorBase}}, it is not always checked if the input to a {{GroupReduceFunction}}
is not empty. This leads to the NPE when executing the {{AggregateOperator}}.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message