You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@flink.apache.org by "Martin Junghanns (JIRA)" <ji...@apache.org> on 2015/11/23 20:03:11 UTC
[jira] [Created] (FLINK-3064) Missing size check in
GroupReduceOperatorBase leads to NPE
Martin Junghanns created FLINK-3064:
---------------------------------------
Summary: 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)