[KAFKA-9405] Use Map API computeIfAbsent Where Applicable

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.5.0
• Component/s: clients
• Assignee: Unassigned
• Reporter: David Mollitor
• Created: 12/Jan/20 16:27
• Updated: 29/Jan/20 21:54
• Resolved: 29/Jan/20 21:54

Description

to implement a multi-value map, Map<K,Collection<V>>, supporting multiple values per key:

map.computeIfAbsent(key, k -> new HashSet<V>()).add(v);

https://docs.oracle.com/javase/8/docs/api/java/util/Map.html#computeIfAbsent-K-java.util.function.Function-

Issue Links

• links to: GitHub Pull Request #7937