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https://issues.apache.org/jira/browse/FLINK-19384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17214242#comment-17214242
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Stephan Ewen commented on FLINK-19384:
--------------------------------------
The Josh Bloch guide is what I try to follow in Flink's internal
implementations.
For user functions and the like it is as you and Chesnay said - just spare them
the inconvenience to wrap into some permitted exceptions (or RuntimeException).
> Source API exception signatures are inconsistent
> ------------------------------------------------
>
> Key: FLINK-19384
> URL: https://issues.apache.org/jira/browse/FLINK-19384
> Project: Flink
> Issue Type: Bug
> Components: API / Core
> Affects Versions: 1.11.0, 1.11.1, 1.11.2
> Reporter: Stephan Ewen
> Priority: Blocker
> Fix For: 1.12.0
>
>
> The methods in {{org.apache.flink.api.connector.source.Source}} have
> inconsistent exception signatures:
> - the methods to create reader and enumerator do not throw a checked
> exception
> - the method to restore an enumerator throws an {{IOException}}.
> Either all methods should allow throwing checked IOExceptions or all methods
> should not allo any checked exceptions.
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