[ARROW-17718] [C++][Java][FlightRPC] Get rid of FlightTestUtil.getStartedServer etc.

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: FlightRPC, Java
• Labels: good-second-issue
• External issue URL: https://github.com/apache/arrow/issues/32954
• Assignee: Unassigned
• Reporter: David Li
• Created: 13/Sep/22 19:53
• Updated: 11/Jan/23 11:52

Description

Anything expecting to bind to a random port in CI is an antipattern and makes tests flaky. All tests should bind to port 0 and let the OS assign a port.