[KAFKA-9490] Some factory methods in Grouped are missing generic parameters

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.4.0
• Fix Version/s: 2.6.0
• Component/s: streams
• Assignee: Matthias J. Sax
• Reporter: Dariusz Kordonski
• Created: 31/Jan/20 22:30
• Updated: 04/Feb/20 01:03
• Resolved: 04/Feb/20 01:03

Description

The following methods in Grouped class seem to be missing generic parameters <K,V> in the declared return type:

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); 
} 

I think it both cases it should be:

public static <K,V> Grouped<K,V> ...() 

This causes "unchecked call" compiler warnings when called by clients.

Issue Links

• links to: GitHub Pull Request #8028