ZhengBowen created FLINK-3685:
---------------------------------
Summary: 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: Core
Affects Versions: 1.0.0
Reporter: ZhengBowen
There is a logical error in the following function in DateSerializer.java when
source read '-1'
function is:
```
public Date deserialize(Date reuse, DataInputView source) throws IOException {
long v = source.readLong();
if(v == -1L) {
return null;
}
reuse.setTime(v);
return reuse;
}
```
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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