[FLINK-8338] Make CustomCommandLines non static in CliFrontend

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.5.0
• Fix Version/s: 1.5.0
• Component/s: Command Line Client
• Labels: flip-6
• Assignee: Till Rohrmann
• Reporter: Till Rohrmann
• Created: 02/Jan/18 08:10
• Updated: 11/Jan/18 23:21
• Resolved: 11/Jan/18 23:21

Description

For better testability and maintainability we should make the CustomCommandLine registration non-static in CliFrontend.

Issue Links

• links to: GitHub Pull Request #5224