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https://issues.apache.org/jira/browse/KAFKA-9490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17029408#comment-17029408
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ASF GitHub Bot commented on KAFKA-9490:
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mjsax commented on pull request #8028: KAFKA-9490: Fix generics for Grouped
URL: https://github.com/apache/kafka/pull/8028
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> Some factory methods in Grouped are missing generic parameters
> --------------------------------------------------------------
>
> Key: KAFKA-9490
> URL: https://issues.apache.org/jira/browse/KAFKA-9490
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 2.4.0
> Reporter: Dariusz Kordonski
> Assignee: Matthias J. Sax
> Priority: Minor
> Fix For: 2.5.0
>
>
> The following methods in {{Grouped}} class seem to be missing generic
> parameters {{<K,V>}} in the declared return type:
> {code:java}
> public static <K> Grouped keySerde(final Serde<K> keySerde) { return new
> Grouped<>(null, keySerde, null);
> }
> public static <V> Grouped valueSerde(final Serde<V> valueSerde) { return new
> Grouped<>(null, null, valueSerde);
> } {code}
> I think it both cases it should be:
> {code:java}
> public static <K,V> Grouped<K,V> ...() {code}
> This causes "unchecked call" compiler warnings when called by clients.
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