[SLING-10537] @Service annotation for Jupiter should explicitly allow for optional and mandatory service injection

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: JUnit Core 1.1.2
• Fix Version/s: JUnit Core 1.1.6
• Component/s: JUnit Core, Testing
• Assignee: Julian Sedding
• Reporter: Julian Sedding
• Created: 23/Jun/21 14:37
• Updated: 27/Jun/21 14:29
• Resolved: 23/Jun/21 14:44

Description

The @Service annotation for Jupiter is currently mandatory for unary service injection and optional for multiple service injection. It should be possible to specify that a unary service is optional, leading to null being injected. It should also be possible to specify mandatory multiple service injection, leading to "at least one" semantics. This should fail parameter injection if no suitable service is available.