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Posted to issues@flink.apache.org by "Robert Metzger (JIRA)" <ji...@apache.org> on 2019/02/28 13:13:00 UTC
[jira] [Updated] (FLINK-3685) Logical error in code for
DateSerializer deserialize with reuse
[ https://issues.apache.org/jira/browse/FLINK-3685?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Robert Metzger updated FLINK-3685:
----------------------------------
Component/s: (was: Core)
API / Type Serialization System
> Logical error in code for DateSerializer deserialize with reuse
> ---------------------------------------------------------------
>
> Key: FLINK-3685
> URL: https://issues.apache.org/jira/browse/FLINK-3685
> Project: Flink
> Issue Type: Bug
> Components: API / Type Serialization System
> Affects Versions: 1.0.0
> Reporter: ZhengBowen
> Priority: Major
>
> There is a logical error in the following function in DateSerializer.java when source read '-1'
> function is:
> {code}
> public Date deserialize(Date reuse, DataInputView source) throws IOException {
> long v = source.readLong();
> if(v == -1L) {
> return null;
> }
> reuse.setTime(v);
> return reuse;
> }
> {code}
> when call this function for first time, if return null, then 'reuse' will be set null by caller;
> when call this function for second time,if 'v!=-1' ,reuse.setTime(v) will throw NPE.
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