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https://issues.apache.org/jira/browse/FLINK-6800?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17323646#comment-17323646
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Flink Jira Bot commented on FLINK-6800:
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This issue is assigned but has not received an update in 7 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> PojoSerializer ignores added pojo fields
> ----------------------------------------
>
> Key: FLINK-6800
> URL: https://issues.apache.org/jira/browse/FLINK-6800
> Project: Flink
> Issue Type: Bug
> Components: API / Type Serialization System
> Affects Versions: 1.3.0, 1.4.0
> Reporter: Till Rohrmann
> Assignee: boshu Zheng
> Priority: Major
> Labels: stale-assigned
>
> The {{PojoSerializer}} contains a list of pojo fields which are represented
> as {{Field}} instances. Upon serialization the names of these fields are
> serialized. When being deserialized these names are used to look up the
> respective {{Fields}} of a dynamically loaded class. If the dynamically
> loaded class has additional fields (compared to when the serializer was
> serialized), then these fields will be ignored (for the read and for the
> write path). While this is necessary to read stored data, it is dangerous
> when writing new data, because all newly added fields won't be serialized.
> This subtleness is really hard to detect for the user. Therefore, I think we
> should eagerly fail if the newly loaded type contains new fields which
> haven't been present before.
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