[FLINK-6551] OutputTag name should not be allowed to be empty

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.3.0, 1.4.0
• Fix Version/s: 1.3.0, 1.4.0
• Component/s: API / DataStream
• Assignee: Chesnay Schepler
• Reporter: Chesnay Schepler
• Created: 11/May/17 15:13
• Updated: 20/May/17 17:34
• Resolved: 20/May/17 17:34

Description

When creating an OutputTag it is required to give it a name.

While we do enforce that the name is not null we do not have a check in place that prevents passing an empty string.

Issue Links

• links to: GitHub Pull Request #3953