[FLINK-10693] Fix Scala EitherSerializer duplication

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.6.1
• Fix Version/s: 1.5.6, 1.6.3, 1.7.0
• Component/s: API / Scala
• Labels: pull-request-available
• Assignee: Stephan Ewen
• Reporter: Stephan Ewen
• Created: 26/Oct/18 17:02
• Updated: 01/Nov/18 11:43
• Resolved: 01/Nov/18 11:41

Description

The Scala Either Serializer has buggy duplication logic, resulting in sharing and incorrect concurrent use when the nested serializers are not thread safe.

Issue Links

• links to: GitHub Pull Request #6951