[KAFKA-8254] Suppress incorrectly passes a null topic to the serdes

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1.0, 2.2.0, 2.1.1
• Fix Version/s: 2.3.0, 2.1.2, 2.2.1
• Component/s: streams
• Assignee: John Roesler
• Reporter: John Roesler
• Created: 18/Apr/19 15:34
• Updated: 10/May/19 15:08
• Resolved: 26/Apr/19 16:47

Description

For example, in KTableSuppressProcessor, we do:

final Bytes serializedKey = Bytes.wrap(keySerde.serializer().serialize(null, key));

This violates the contract of Serializer (and Deserializer), and breaks integration with known Serde implementations.

Issue Links

• links to: GitHub Pull Request #6602
• links to: GitHub Pull Request #6641